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  • Automated backups for Windows Azure SQL Database

    - by Greg Low
    One of the questions that I've often been asked is about how you can backup databases in Windows Azure SQL Database. What we have had access to was the ability to export a database to a BACPAC. A BACPAC is basically just a zip file that contains a bunch of metadata along with a set of bcp files for each of the tables in the database. Each table in the database is exported one after the other, so this does not produce a transactionally-consistent backup at a specific point in time. To get a transactionally-consistent copy, you need a database that isn't in use.The easiest way to get a database that isn't in use is to use CREATE DATABASE AS COPY OF. This creates a new database as a transactionally-consistent copy of the database that you are copying. You can then use the export options to get a consistent BACPAC created.Previously, I've had to automate this process by myself. Given there was also no SQL Agent in Azure, I used a job in my on-premises SQL Server to do this, using a linked server configuration.Now there's a much simpler way. Windows Azure SQL Database now supports an automated export function. On the Configuration tab for the database, you need to enable the Automated Export function. You can configure how often the operation is performed for you, and which storage account will be used for the backups.It's important to consider the cost impacts of this as well. You are charged for how ever many databases are on your server on a given day. So if you enable a daily backup, you will double your database costs. Do not schedule the backups just before midnight UTC, as that could cause you to have three databases each day instead of one.This is a much needed addition to the capabilities. Scott Guthrie also posted about some other notable changes today, including a preview of a new premium offering for SQL Database. In addition to the Web and Business editions, there will now be a Premium edition that has reserved (rather than shared) resources. You can read about it all in Scott's post here: http://weblogs.asp.net/scottgu/archive/2013/07/23/windows-azure-july-updates-sql-database-traffic-manager-autoscale-virtual-machines.aspx

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  • Blurry printed raster images with Brother MFC-8840D

    - by Adam Monsen
    (NOTE: crossposted here: ubuntuforums.org/showthread.php?t=1621795) I've got a Brother MFC-8840D. Works great with Ubuntu server! Setting up a CUPS print server was pretty straightforward, and I also finally got network scanning working reliably with saned. Printing documents and Web pages works well: fonts are crisp/clear, etc. One issue has got me completely vexed: printing raster (ie: JPG) images. They are blurry. For example, I can scan a page of black and white text at 150 or 300 dpi. The grayscale image looks perfect on my monitor. But the printed version is much blurrier than the original, regardless of the "print resolution" dpi I choose. As a counterexample, if I use the "copy" function of the MFC-8840D, the copy looks excellent, and this function is much, much faster than if I scan then print a scan of same. I've googled around a bunch and tried different tricks (printing a PDF with the image from evince, printing with Gimp, EOG and other applications) but I just can't print anything that looks as good as a copy made with the MFC-8840D. Any ideas? I'm using Ubuntu 10.04.1 LTS server. I'm using the PPD file from solutions.brother.com. Thanks, -Adam

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  • Old Lock Retrofitted for Wireless and Key-free Entry

    - by Jason Fitzpatrick
    What do you do if the old key your landlord gave you is poor fit for your apartment’s lock? If you’re the geeky sort, you build a wireless unlocking module to do the work for you. Instructables user Rybitski writes: The key to my apartment never worked quite right because it is a copy of a copy of a copy. I am fairly certain that the dead bolt is original to the building and the property manager seems to have lost the original key years ago. As a result unlocking the door was always a pain. Changing the lock wasn’t an option, but eliminating the need to use a key was. To that end, he built the device seen in the video above. An Arduino Uno drives a servo which in turn opens the deadbolt. The whole thing is controlled by a simple wireless key fob. Hit up the link below for the full build guide including code. Key Fob Deadbolt [via Hack A Day] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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  • Can I distribute a software with the following permission notice

    - by Parham
    I've recently written a piece of software (without any other contributors) for a company which I part own. I was wondering if I could distribute it with the following permission notice, which is a modified version of the MIT License. Are there any obvious risks if I do distribute with this licence and does it give me the right to reuse the code in other projects? Permission is hereby granted, to any person within CompanyName (the "Company") obtaining a copy of this software and associated documentation files, excluding any third party libraries (the "Software"), to deal with the Software, with limitations restricted to use, copy, modify and merge, the Software may not be published, distributed, sublicensed and/or sold without the explicit permission from AuthorName (the "Author"). This notice doesn't apply to sections of the Software where copyright is held by any persons other than the Author. The Author remains the owner of the Software and may deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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  • Windows Defender Update KB915597 (Definition 1.135.415.0)? Killed My Live Discs

    - by user88311
    Here's my problem, for those willing to read for about 2 minutes here's the entire story, http://answers.microsoft.com/en-us/windows/forum/windows_vista-windows_update/bsod-after-windows-defender-update-kb915597/a4b5fca3-0274-47b4-97c4-61b34c4c4599, for those who want the short version here's what happened. After windows update automatically updated windows defender to kb915597, my computer starting getting bsods on shut down and start up and started experiencing problems withe the usb ports. So I decided to go to the microsoft answers site for help, I know that was probably my first mistake, so I followed their advice and they turned my computer into a large paper weight. Luckily I make physical backups of my c drive every few months and I have one from back in july, so I figured I'd boot up a ubuntu live disc, copy all my files from the past 2 months to a external drive and just copy the backup back to the c drive, that's where I ran into this problem. When I put in either a ubuntu or kubuntu disc, everything goes well, until it finishes the loading bar then when the OS would presumably start up, the computer resets, I've tried with ubuntu, kubuntu and gparted, and only gparted is able to get to the point where it starts up, but even then when I try to access the internet from it, the computer resets, and when I tried to copy the entire C drive partition to a blank external I wasn't able to. So I figured somehow maybe the C drive had something to do with it, so I unplugged the C drive so my computer was just a 2.8 ghz processor and 2 gigs of ram, should have had no problem starting a live disc but the problem still continues. After doing some googling around I've found whenever windows gets a update with the title KB915597 it's pretty much the kill switch for windows, I've tried contacting microsoft tech support and even managed to directly contact a software engineer but as soon as I mention KB915597 they all just blew me off. I hope anybody who reads this has any idea how to fix this, I'm going to attempt to install ubuntu or kubuntu to a external drive using the same computer and see what happens now.

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  • Packaging MATLAB (or, more generally, a large binary, proprietary piece of software)

    - by nfirvine
    I'm trying to package MATLAB for internal distribution, but this could apply to any piece of software with the same architecture. In fact, I'm packaging multiple releases of MATLAB to be installed concurrently. Key things Very large installation size (~4 GB) Composed of a core, and several plugins (toolboxes) Initially, I created a single "source" package (matlab2011b) that builds several .debs (mainly matlab2011b-core and matlab2011b-toolbox-* for each toolbox). The control file is just the standard all: dh $@ There is no Makefile; only copying files. I use a number of debian/*.install files to specify files to copy from a copy of an installation to /usr/lib/. The problem is, every time I build the thing (say, to make a correction to the core package), it recopies every file listed in the *.install file to e.g debian/$packagename/usr/ (the build phase), and then has to bundle that into a .deb file. It takes a long time, on the order of hours, and is doing a lot of extra work. So my questions are: Can you make dh_install do a hardlink copy (like cp -l) to save time? (AFAICT from the man page, no.) Maybe I should just get it to do this in the Makefile? (That's gonna b e big Makefile.) Can you make debuild only rebuild .debs that need rebuilding? Or specify which .debs to rebuild? Is my approach completely stupid? Should I break each of the toolboxes into its own source package too? (I'll have to do some silly templating or something, because there's hundreds of them. :/)

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  • How similiar should the environments of PreProd and Prod be?

    - by RoboShop
    I've just recently been on a project and during the release, we realized that it didn't work in Production. It works in all other environments but because we have a separate release team, and we cannot set up the servers and environments ourselves, we have no visibility of the configuration on them. We suspect that Prod has some user permissions in its account or IIS settings that are different, so we are working though it now. So I think this whole thing has been a learning experience for me and I don't want the same thing repeated again. I would like to ask, how different should these environments be? I always thought that PreProd should be an identical copy to the Prod environment using a copy of the same database, using a copy of the same user account, should be installed on the same servers etc. But how far should I take it? If the web site is externally facing, should PreProd be externally facing? What if the website has components that don't require a user account or password to navigate to? Is it still okay to expose it to the outside world?

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  • Move entire OS from NTFS drive to bigger ext4 drive.

    - by pangel
    According to SMART data, the hard drive I curently use is about to fail. I bought a new, bigger drive to copy the system to a safer place. The old drive is 160GB. Ubuntu was installed with Wubi, and the partition is NTFS. There are a few other partitions around (recovery partition, swap...) that I don't care about. The new drive is 320GB. I would like the new system to run on ext4, not on NTFS. I looked at solutions that use dd, or clonezilla, but it seems that moving to a different filesystem prevents me from using them. I considered installing a brand new ubuntu on the new hard drive and then copy /home from the old drive to the new drive, but I heard that there would be file permission problems. I would also have to reinstall all my software. One last thing: the NTFS drive has dead sectors. I don't know how this can influence the copy process, but I mention it just in case. edit: I do not care about the windows partition. I just want Ubuntu to make the transition.

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  • Where do I find scripts generated by SharePoint MCMS Migration Profiles

    - by HipCzeck
    I am attempting to migrate data from an Microsoft Content Management Server (MCMS) 2002 instance into a new Microsoft Office Sharepoint Server (MOSS) 2007 installation using the Manage Microsoft Content Management Server Migration Profiles tool in the Operations space of MOSS Central Administration. When analyzing the profile, I receive 4 warnings, all of which may be safely ignored, but when I actually execute the migration profile, I get the same warnings and an additional error with a description of: Line 6: Incorrect syntax near ';'. I have seen this error numerous times when mucking about in SQL Server and recognize it as a Transact SQL error message, but can't find the actual SQL statement that is being executed so that I may determine the source of the error. EDIT: After enabling verbose logging on the MCMS 2002 Migration category, and poring through the Unified Logging Service (ULS) logs, I received a more complete stack trace at the point of the error, and a couple more anomalies listed below. Anomalies: The following is an abbreviated listing from the ULS logs around the time of the pre-migration analysis. 01 MCMS 2002 Migration Verbose Start ConnectionCheck 02 MCMS 2002 Migration Verbose End ConnectionCheck 03 MCMS 2002 Migration Verbose Start DatabaseCheck 04 MCMS 2002 Migration High Extra table SiteDeployLock will not be migrated 05 MCMS 2002 Migration High Analysis: Extra index PK__SiteDeployLock__05D8E0BE 06 MCMS 2002 Migration Verbose End DatabaseCheck 07 MCMS 2002 Migration Medium Pre-migration analysis: RootCheckTask is skipped because database check is blocked. 08 MCMS 2002 Migration Medium Pre-migration analysis: RightsGroupNameCheckTask is skipped because database check is blocked. 09 MCMS 2002 Migration Medium Pre-migration analysis: InvalidNameCheckTask is skipped because database check is blocked. 10 MCMS 2002 Migration Medium Pre-migration analysis: LeafNameCheckTask is skipped because database check is blocked. 11 MCMS 2002 Migration Medium Pre-migration analysis: LeafLengthCheckTask is skipped because database check is blocked. 12 MCMS 2002 Migration Medium Pre-migration analysis: TemplateNameCheckTask is skipped because database check is blocked. 13 MCMS 2002 Migration Medium Pre-migration analysis: TemplateCollisionCheckTask is skipped because database check is blocked. 14 MCMS 2002 Migration Medium Pre-migration analysis: PlaceholderCheckTask is skipped because database check is blocked. 15 MCMS 2002 Migration Medium Pre-migration analysis: CheckedOutItemsCheckTask is skipped because database check is blocked. 16 MCMS 2002 Migration Medium Pre-migration analysis: SubmittedItemsCheckTask is skipped because database check is blocked. 17 MCMS 2002 Migration Medium Pre-migration analysis: DeletedItemsCheckTask is skipped because database check is blocked. 18 MCMS 2002 Migration Medium Pre-migration analysis: UserCheckTask is skipped because database check is blocked. 19 MCMS 2002 Migration Medium Pre-migration analysis: FileSizeCheckTask is skipped because database check is blocked. 20 MCMS 2002 Migration Medium Pre-migration analysis: HostHeaderMapCheckTask is skipped because database check is blocked. 21 MCMS 2002 Migration Verbose Start Server check 22 MCMS 2002 Migration Verbose End Server check 23 MCMS 2002 Migration Verbose Start Server emptyness check 24 MCMS 2002 Migration Verbose End Server emptyness check 25 MCMS 2002 Migration Medium PreMigrationAnalyzer: Dry run starts 26 MCMS 2002 Migration Verbose CleanLockProcedure: start. 27 MCMS 2002 Migration High CleanLockProcedure: connection system lock is null 28 MCMS 2002 Migration Verbose Finished all tasks 29 MCMS 2002 Migration High PreMigrationAnalyzer ends with True 30 MCMS 2002 Migration Verbose Migration profile status is changed to AnalysisPassed Specifically, the two High level alerts on lines 4 and 5 are reflected in the migration report as warnings when running Pre-migration Analysis or running the migration profile. In addition, two other warnings appear in the migration report indicating two tables containing data (LayoutProperty and NodeLayout) that should be empty. According to the documentation, warnings are not sufficient cause to stop migration from occurring. Other anomalies are on lines 7-20 indicating a series of tests that are skipped because database check is blocked. The ULS doesn't give any additional warnings to indicate that the database check was blocked or exited in exceptional circumstances. After switching the profile from pre-migration analysis to exporting, there is one medium level warning that LastChangeTime is not set or incorrect. (null). As with all the skipped test names and SQL table names from the warnings, the major search engines are unable (with the exception of LayoutProperty) to find any reference to these objects or tests. Finally, the section of the log indicating the actual live migration attempt is appended below: 01 MCMS 2002 Migration Medium LastChangeTime is not set or incorrect. (null) 02 MCMS 2002 Migration Verbose Set export lock 03 MCMS 2002 Migration Verbose CleanLockProcedure: start. 04 MCMS 2002 Migration Verbose CleanLockProcedure: end. 05 MCMS 2002 Migration Verbose Prepare for export 06 MCMS 2002 Migration Verbose Open connection... 07 MCMS 2002 Migration Verbose Create temporary stored procedures 08 MCMS 2002 Migration Verbose Create temporary tables... 09 MCMS 2002 Migration Verbose Initialize temporary tables... 10 MCMS 2002 Migration Verbose InitializeTemporaryTables: start 11 MCMS 2002 Migration Verbose Initialize export table... 12 MCMS 2002 Migration Verbose InitializeExportTable: start 13 MCMS 2002 Migration Verbose CleanLockProcedure: start. 14 MCMS 2002 Migration Verbose CleanLockProcedure: end. 15 MCMS 2002 Migration High Migration throws exception: Line 6: Incorrect syntax near ';'.. Stacktrace: at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Microsoft.SharePoint.Publishing.Internal.Administration... 16 MCMS 2002 Migration High ....MigrationBatchCommand.ExecuteImmediate(String command) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationBatchCommand.ExecuteWaitingCommands() at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDBSerializer.SerializeSelectedExportObject(StringCollection objectAttribs) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess.InitializeExportTable(ScopeType scopeType) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess.InitializeTemporaryTables(DateTime lastChangeTime) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess.InitializeDatabase(DateTime lastChangeTime, Boolean isAnalysis, SqlConnection connection) at Microsoft.SharePoint.Publishing.Internal.Admin... 17 MCMS 2002 Migration High ...stration.MigrationDataAccess.InitializeDatabase(DateTime lastChangeTime, Boolean isAnalysis) at Microsoft.SharePoint.Publishing.Administration.ContentMigration.Export(MigrationDataAccess dataAccess) at Microsoft.SharePoint.Publishing.Administration.ContentMigration.MigrateInternal(). 18 MCMS 2002 Migration Verbose MigrationProfile: GetInstance. Start. 19 MCMS 2002 Migration Verbose MigrationProfile: GetInstance. End. 20 MCMS 2002 Migration Verbose Migration profile status is changed to Failed The stack trace of the failed parsing of the SQL command appear on lines 15-17. A cleaner version of the stack trace is appended below. Full Stack Trace: Migration throws exception: Line 6: Incorrect syntax near ';'.. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning( TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationBatchCommand .ExecuteImmediate(String command) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationBatchCommand .ExecuteWaitingCommands() at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDBSerializer .SerializeSelectedExportObject(StringCollection objectAttribs) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess .InitializeExportTable(ScopeType scopeType) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess .InitializeTemporaryTables(DateTime lastChangeTime) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess .InitializeDatabase(DateTime lastChangeTime, Boolean isAnalysis, SqlConnection connection) at Microsoft.SharePoint.Publishing.Internal.Administration.MigrationDataAccess .InitializeDatabase(DateTime lastChangeTime, Boolean isAnalysis) at Microsoft.SharePoint.Publishing.Administration.ContentMigration.Export (MigrationDataAccess dataAccess) at Microsoft.SharePoint.Publishing.Administration.ContentMigration .MigrateInternal(). None of this log information indicates the SQL command that is failing a parser check. I've checked the SQL servers hosting the source and destination databases for a trace of the query, but neither seems to have triggered the parse failure condition. That appears to have happened on the SharePoint server. Are there any other locations I should investigate that might tell me where to find the source of the error?

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  • How do I configure Tomcat services in Ubuntu?

    - by Karan
    I have created a Tomcat script inside the /etc/init.d directory which is #!/bin/bash # description: Tomcat Start Stop Restart # processname: tomcat # chkconfig: 234 20 80 JAVA_HOME=/usr/java/jdk1.6.0_30 export JAVA_HOME PATH=$JAVA_HOME/bin:$PATH export PATH CATALINA_HOME=/usr/tomcat/apache-tomcat-6.0.32 case $1 in start) sh $CATALINA_HOME/bin/startup.sh ;; stop) sh $CATALINA_HOME/bin/shutdown.sh ;; restart) sh $CATALINA_HOME/bin/shutdown.sh sh $CATALINA_HOME/bin/startup.sh ;; esac exit 0 After this I am trying to add this into chkconfig which is as [root@blanche init.d]# chkconfig --add tomcat [root@blanche init.d]# chkconfig --level 234 tomcat on But it is giving me the following error: [root@blanche init.d]:/etc/init.d$ chkconfig --add tomcat insserv: warning: script 'K20acpi-support' missing LSB tags and overrides insserv: warning: script 'tomcat' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'failsafe-x' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'acpid' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'dmesg' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udevmonitor' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'ufw' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'module-init-tools' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth-splash' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'gdm' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'rsyslog' missing LSB tags and overrides insserv: warning: current start runlevel(s) (0 6) of script `wpa-ifupdown' overwrites defaults (empty). The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'hwclock' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'console-setup' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udev' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth-log' missing LSB tags and overrides insserv: warning: current start runlevel(s) (0) of script `halt' overwrites defaults (empty). The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'mysql' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'atd' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'network-manager' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'alsa-mixer-save' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udev-finish' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'screen-cleanup' missing LSB tags and overrides insserv: warning: script 'acpi-support' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'avahi-daemon' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'dbus' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'procps' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'irqbalance' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth-stop' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'anacron' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udevtrigger' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'hostname' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'hwclock-save' missing LSB tags and overrides insserv: warning: current start runlevel(s) (0 6) of script `networking' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `umountfs' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `umountnfs.sh' overwrites defaults (empty). The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'network-interface' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'network-interface-security' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'cron' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'apport' missing LSB tags and overrides insserv: warning: current start runlevel(s) (6) of script `reboot' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `umountroot' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `sendsigs' overwrites defaults (empty). insserv: There is a loop between service rsyslog and pulseaudio if stopped insserv: loop involving service pulseaudio at depth 3 insserv: loop involving service rsyslog at depth 2 insserv: loop involving service udev at depth 1 insserv: There is a loop between service rsyslog and pulseaudio if stopped insserv: loop involving service bluetooth at depth 2 insserv: exiting now without changing boot order! /sbin/insserv failed, exit code 1 tomcat 0:off 1:off 2:off 3:off 4:off 5:off 6:off Please suggest what to do for configuring a Tomcat server as a service.

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  • Lighttpd not cleanly restarting (address already in use)

    - by NilObject
    When doing a dist-upgrade recently, my lighttpd-1.4.19 install on Ubuntu 8.0.4 has begun failing to restart or reload properly with the /etc/init.d/lighttpd restart command. ~$ sudo /etc/init.d/lighttpd restart * Stopping web server lighttpd ...done. * Starting web server lighttpd 2009-06-13 04:06:36: (network.c.300) can't bind to port: 80 Address already in use ...fail! The same error occurs when I do a reload. The way I get around it is to kill lighttpd and then issue the start command, but it seems like I shouldn't have to do that :) I've looked at my config files, and can't spot any immediate errors. Does anyone have any ideas what can be causing this error? This seems to be the latest version as of writing this question that is available via the apt-get route. My config file is: # Debian lighttpd configuration file # ############ Options you really have to take care of #################### ## modules to load # mod_access, mod_accesslog and mod_alias are loaded by default # all other module should only be loaded if neccesary # - saves some time # - saves memory server.modules = ( "mod_access", "mod_alias", "mod_accesslog", "mod_compress", "mod_fastcgi", "mod_rewrite", "mod_redirect", ) ## a static document-root, for virtual-hosting take look at the ## server.virtual-* options server.document-root = "/var/www/" ## where to send error-messages to server.errorlog = "/var/log/lighttpd/error.log" fastcgi.server = (".php" => (( "bin-path" => "/usr/bin/php5-cgi", "socket" => "/tmp/php.socket" ))) ## files to check for if .../ is requested index-file.names = ( "index.php", "index.html", "index.htm", "default.htm", "index.lighttpd.html" ) ## Use the "Content-Type" extended attribute to obtain mime type if possible # mimetype.use-xattr = "enable" #### accesslog module accesslog.filename = "/var/log/lighttpd/access.log" ## deny access the file-extensions # # ~ is for backupfiles from vi, emacs, joe, ... # .inc is often used for code includes which should in general not be part # of the document-root url.access-deny = ( "~", ".inc" ) ## # which extensions should not be handle via static-file transfer # # .php, .pl, .fcgi are most often handled by mod_fastcgi or mod_cgi static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" ) mimetype.assign = ( ".pdf" => "application/pdf", ".sig" => "application/pgp-signature", ".spl" => "application/futuresplash", ".class" => "application/octet-stream", ".ps" => "application/postscript", ".torrent" => "application/x-bittorrent", ".dvi" => "application/x-dvi", ".gz" => "application/x-gzip", ".pac" => "application/x-ns-proxy-autoconfig", ".swf" => "application/x-shockwave-flash", ".tar.gz" => "application/x-tgz", ".tgz" => "application/x-tgz", ".tar" => "application/x-tar", ".zip" => "application/zip", ".mp3" => "audio/mpeg", ".m3u" => "audio/x-mpegurl", ".wma" => "audio/x-ms-wma", ".wax" => "audio/x-ms-wax", ".ogg" => "audio/x-wav", ".wav" => "audio/x-wav", ".gif" => "image/gif", ".jpg" => "image/jpeg", ".jpeg" => "image/jpeg", ".png" => "image/png", ".xbm" => "image/x-xbitmap", ".xpm" => "image/x-xpixmap", ".xwd" => "image/x-xwindowdump", ".css" => "text/css", ".html" => "text/html", ".htm" => "text/html", ".js" => "text/javascript", ".asc" => "text/plain", ".c" => "text/plain", ".conf" => "text/plain", ".text" => "text/plain", ".txt" => "text/plain", ".dtd" => "text/xml", ".xml" => "text/xml", ".rss" => "application/rss+xml", ".mpeg" => "video/mpeg", ".mpg" => "video/mpeg", ".mov" => "video/quicktime", ".qt" => "video/quicktime", ".avi" => "video/x-msvideo", ".asf" => "video/x-ms-asf", ".asx" => "video/x-ms-asf", ".wmv" => "video/x-ms-wmv", ".bz2" => "application/x-bzip", ".tbz" => "application/x-bzip-compressed-tar", ".tar.bz2" => "application/x-bzip-compressed-tar" ) include_shell "/usr/share/lighttpd/include-conf-enabled.pl" My /etc/init.d/lighttpd script is (untouched from installation): #!/bin/sh ### BEGIN INIT INFO # Provides: lighttpd # Required-Start: networking # Required-Stop: networking # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start the lighttpd web server. ### END INIT INFO PATH=/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/sbin/lighttpd NAME=lighttpd DESC="web server" PIDFILE=/var/run/$NAME.pid SCRIPTNAME=/etc/init.d/$NAME ENV="env -i LANG=C PATH=/usr/local/bin:/usr/bin:/bin" SSD="/sbin/start-stop-daemon" DAEMON_OPTS="-f /etc/lighttpd/lighttpd.conf" test -x $DAEMON || exit 0 set -e # be sure there is a /var/run/lighttpd, even with tmpfs mkdir -p /var/run/lighttpd > /dev/null 2> /dev/null chown www-data:www-data /var/run/lighttpd chmod 0750 /var/run/lighttpd . /lib/lsb/init-functions case "$1" in start) log_daemon_msg "Starting $DESC" $NAME if ! $ENV $SSD --start --quiet\ --pidfile $PIDFILE --exec $DAEMON -- $DAEMON_OPTS ; then log_end_msg 1 else log_end_msg 0 fi ;; stop) log_daemon_msg "Stopping $DESC" $NAME if $SSD --quiet --stop --oknodo --retry 30\ --pidfile $PIDFILE --exec $DAEMON; then rm -f $PIDFILE log_end_msg 0 else log_end_msg 1 fi ;; reload) log_daemon_msg "Reloading $DESC configuration" $NAME if $SSD --stop --signal 2 --oknodo --retry 30\ --quiet --pidfile $PIDFILE --exec $DAEMON; then if $ENV $SSD --start --quiet \ --pidfile $PIDFILE --exec $DAEMON -- $DAEMON_OPTS ; then log_end_msg 0 else log_end_msg 1 fi else log_end_msg 1 fi ;; restart|force-reload) $0 stop [ -r $PIDFILE ] && while pidof lighttpd |\ grep -q `cat $PIDFILE 2>/dev/null` 2>/dev/null ; do sleep 1; done $0 start ;; *) echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2 exit 1 ;; esac exit 0

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  • Unity completely broken after upgrade to 12.10?

    - by NlightNFotis
    I am facing a very frustrating issue with my computer right now. I successfully upgraded to Ubuntu 12.10 this afternoon, but after the upgrade, the graphical user interface seems completely broken. To be more specific, I can not get the Unity bar to appear on the right. I have tried many things, including (but not limited to) purging and then reinstalling the fglrx drivers, apt-get install --reinstall ubuntu-desktop, apt-get install --reinstall unity, tried to remove the Xorg and Compiz configurations, checked to see if the Ubuntu Unity wall was enabled (it was) in ccsm, all to no avail. Could someone help me troubleshoot and essentially fix this issue? NOTE: This is the output when I try to enable unity via a terminal: compiz (core) - Info: Loading plugin: core compiz (core) - Info: Starting plugin: core unity-panel-service: no process found compiz (core) - Info: Loading plugin: reset compiz (core) - Error: Failed to load plugin: reset compiz (core) - Info: Loading plugin: ccp compiz (core) - Info: Starting plugin: ccp compizconfig - Info: Backend : gsettings compizconfig - Info: Integration : true compizconfig - Info: Profile : unity compiz (core) - Info: Loading plugin: composite compiz (core) - Info: Starting plugin: composite compiz (core) - Info: Loading plugin: opengl X Error of failed request: BadRequest (invalid request code or no such operation) Major opcode of failed request: 153 (GLX) Minor opcode of failed request: 19 (X_GLXQueryServerString) Serial number of failed request: 22 Current serial number in output stream: 22 compiz (core) - Info: Unity is not supported by your hardware. Enabling software rendering instead (slow). compiz (core) - Info: Starting plugin: opengl Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 compiz (core) - Error: Plugin initScreen failed: opengl compiz (core) - Error: Failed to start plugin: opengl compiz (core) - Info: Unloading plugin: opengl compiz (core) - Info: Loading plugin: decor compiz (core) - Info: Starting plugin: decor compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available compiz (decor) - Warn: requested a pixmap type decoration when compositing isn't available Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 compiz (core) - Info: Loading plugin: imgpng compiz (core) - Info: Starting plugin: imgpng compiz (core) - Info: Loading plugin: vpswitch compiz (core) - Info: Starting plugin: vpswitch compiz (core) - Info: Loading plugin: resize compiz (core) - Info: Starting plugin: resize Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 compiz (core) - Info: Loading plugin: compiztoolbox compiz (core) - Info: Starting plugin: compiztoolbox compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Info: Loading plugin: move compiz (core) - Info: Starting plugin: move compiz (core) - Info: Loading plugin: gnomecompat compiz (core) - Info: Starting plugin: gnomecompat compiz (core) - Info: Loading plugin: mousepoll compiz (core) - Info: Starting plugin: mousepoll compiz (core) - Info: Loading plugin: wall compiz (core) - Info: Starting plugin: wall compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: wall compiz (core) - Error: Failed to start plugin: wall compiz (core) - Info: Unloading plugin: wall compiz (core) - Info: Loading plugin: regex compiz (core) - Info: Starting plugin: regex compiz (core) - Info: Loading plugin: snap compiz (core) - Info: Starting plugin: snap compiz (core) - Info: Loading plugin: unitymtgrabhandles compiz (core) - Info: Starting plugin: unitymtgrabhandles compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: unitymtgrabhandles compiz (core) - Error: Failed to start plugin: unitymtgrabhandles compiz (core) - Info: Unloading plugin: unitymtgrabhandles compiz (core) - Info: Loading plugin: place compiz (core) - Info: Starting plugin: place compiz (core) - Info: Loading plugin: grid compiz (core) - Info: Starting plugin: grid Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 compiz (core) - Info: Loading plugin: animation compiz (core) - Info: Starting plugin: animation compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: animation compiz (core) - Error: Failed to start plugin: animation compiz (core) - Info: Unloading plugin: animation compiz (core) - Info: Loading plugin: fade compiz (core) - Info: Starting plugin: fade compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: fade compiz (core) - Error: Failed to start plugin: fade compiz (core) - Info: Unloading plugin: fade compiz (core) - Info: Loading plugin: session compiz (core) - Info: Starting plugin: session compiz (core) - Info: Loading plugin: expo compiz (core) - Info: Starting plugin: expo compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: expo compiz (core) - Error: Failed to start plugin: expo compiz (core) - Info: Unloading plugin: expo compiz (core) - Info: Loading plugin: ezoom compiz (core) - Info: Starting plugin: ezoom compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: ezoom compiz (core) - Error: Failed to start plugin: ezoom compiz (core) - Info: Unloading plugin: ezoom compiz (core) - Info: Loading plugin: workarounds compiz (core) - Info: Starting plugin: workarounds compiz (core) - Error: Plugin 'opengl' not loaded. Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 compiz (core) - Info: Loading plugin: scale compiz (core) - Info: Starting plugin: scale compiz (core) - Error: Plugin 'opengl' not loaded. compiz (core) - Error: Plugin init failed: scale compiz (core) - Error: Failed to start plugin: scale compiz (core) - Info: Unloading plugin: scale Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Compiz (opengl) - Fatal: glXQueryExtensionsString is NULL for screen 0 Segmentation fault (core dumped)

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  • Ajax Control Toolkit and Superexpert

    - by Stephen Walther
    Microsoft has asked my company, Superexpert Consulting, to take ownership of the development and maintenance of the Ajax Control Toolkit moving forward. In this blog entry, I discuss our strategy for improving the Ajax Control Toolkit. Why the Ajax Control Toolkit? The Ajax Control Toolkit is one of the most popular projects on CodePlex. In fact, some have argued that it is among the most successful open-source projects of all time. It consistently receives over 3,500 downloads a day (not weekends -- workdays). A mind-boggling number of developers use the Ajax Control Toolkit in their ASP.NET Web Forms applications. Why does the Ajax Control Toolkit continue to be such a popular project? The Ajax Control Toolkit fills a strong need in the ASP.NET Web Forms world. The Toolkit enables Web Forms developers to build richly interactive JavaScript applications without writing any JavaScript. For example, by taking advantage of the Ajax Control Toolkit, a Web Forms developer can add modal dialogs, popup calendars, and client tabs to a web application simply by dragging web controls onto a page. The Ajax Control Toolkit is not for everyone. If you are comfortable writing JavaScript then I recommend that you investigate using jQuery plugins instead of the Ajax Control Toolkit. However, if you are a Web Forms developer and you don’t want to get your hands dirty writing JavaScript, then the Ajax Control Toolkit is a great solution. The Ajax Control Toolkit is Vast The Ajax Control Toolkit consists of 40 controls. That’s a lot of controls (For the sake of comparison, jQuery UI consists of only 8 controls – those slackers J). Furthermore, developers expect the Ajax Control Toolkit to work on browsers both old and new. For example, people expect the Ajax Control Toolkit to work with Internet Explorer 6 and Internet Explorer 9 and every version of Internet Explorer in between. People also expect the Ajax Control Toolkit to work on the latest versions of Mozilla Firefox, Apple Safari, and Google Chrome. And, people expect the Ajax Control Toolkit to work with different operating systems. Yikes, that is a lot of combinations. The biggest challenge which my company faces in supporting the Ajax Control Toolkit is ensuring that the Ajax Control Toolkit works across all of these different browsers and operating systems. Testing, Testing, Testing Because we wanted to ensure that we could easily test the Ajax Control Toolkit with different browsers, the very first thing that we did was to set up a dedicated testing server. The dedicated server -- named Schizo -- hosts 4 virtual machines so that we can run Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, and Internet Explorer 9 at the same time (We also use the virtual machines to host the latest versions of Firefox, Chrome, Opera, and Safari). The five developers on our team (plus me) can each publish to a separate FTP website on the testing server. That way, we can quickly test how changes to the Ajax Control Toolkit affect different browsers. QUnit Tests for the Ajax Control Toolkit Introducing regressions – introducing new bugs when trying to fix existing bugs – is the concern which prevents me from sleeping well at night. There are so many people using the Ajax Control Toolkit in so many unique scenarios, that it is difficult to make improvements to the Ajax Control Toolkit without introducing regressions. In order to avoid regressions, we decided early on that it was extremely important to build good test coverage for the 40 controls in the Ajax Control Toolkit. We’ve been focusing a lot of energy on building automated JavaScript unit tests which we can use to help us discover regressions. We decided to write the unit tests with the QUnit test framework. We picked QUnit because it is quickly becoming the standard unit testing framework in the JavaScript world. For example, it is the unit testing framework used by the jQuery team, the jQuery UI team, and many jQuery UI plugin developers. We had to make several enhancements to the QUnit framework in order to test the Ajax Control Toolkit. For example, QUnit does not support tests which include postbacks. We modified the QUnit framework so that it works with IFrames so we could perform postbacks in our automated tests. At this point, we have written hundreds of QUnit tests. For example, we have written 135 QUnit tests for the Accordion control. The QUnit tests are included with the Ajax Control Toolkit source code in a project named AjaxControlToolkit.Tests. You can run all of the QUnit tests contained in the project by opening the Default.aspx page. Automating the QUnit Tests across Multiple Browsers Automated tests are useless if no one ever runs them. In order for the QUnit tests to be useful, we needed an easy way to run the tests automatically against a matrix of browsers. We wanted to run the unit tests against Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, Internet Explorer 9, Firefox, Chrome, and Safari automatically. Expecting a developer to run QUnit tests against every browser after every check-in is just too much to expect. It takes 20 seconds to run the Accordion QUnit tests. We are testing against 8 browsers. That would require the developer to open 8 browsers and wait for the results after each change in code. Too much work. Therefore, we built a JavaScript Test Server. Our JavaScript Test Server project was inspired by John Resig’s TestSwarm project. The JavaScript Test Server runs our QUnit tests in a swarm of browsers (running on different operating systems) automatically. Here’s how the JavaScript Test Server works: 1. We created an ASP.NET page named RunTest.aspx that constantly polls the JavaScript Test Server for a new set of QUnit tests to run. After the RunTest.aspx page runs the QUnit tests, the RunTest.aspx records the test results back to the JavaScript Test Server. 2. We opened the RunTest.aspx page on instances of Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, Internet Explorer 9, FireFox, Chrome, Opera, Google, and Safari. Now that we have the JavaScript Test Server setup, we can run all of our QUnit tests against all of the browsers which we need to support with a single click of a button. A New Release of the Ajax Control Toolkit Each Month The Ajax Control Toolkit Issue Tracker contains over one thousand five hundred open issues and feature requests. So we have plenty of work on our plates J At CodePlex, anyone can vote for an issue to be fixed. Originally, we planned to fix issues in order of their votes. However, we quickly discovered that this approach was inefficient. Constantly switching back and forth between different controls was too time-consuming. It takes time to re-familiarize yourself with a control. Instead, we decided to focus on two or three controls each month and really focus on fixing the issues with those controls. This way, we can fix sets of related issues and avoid the randomization caused by context switching. Our team works in monthly sprints. We plan to do another release of the Ajax Control Toolkit each and every month. So far, we have competed one release of the Ajax Control Toolkit which was released on April 1, 2011. We plan to release a new version in early May. Conclusion Fortunately, I work with a team of smart developers. We currently have 5 developers working on the Ajax Control Toolkit (not full-time, they are also building two very cool ASP.NET MVC applications). All the developers who work on our team are required to have strong JavaScript, jQuery, and ASP.NET MVC skills. In the interest of being as transparent as possible about our work on the Ajax Control Toolkit, I plan to blog frequently about our team’s ongoing work. In my next blog entry, I plan to write about the two Ajax Control Toolkit controls which are the focus of our work for next release.

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  • Cannot install mysql-server (5.5.22) on clean ubuntu 12.04 LTS server

    - by Christian
    I have a clean minimal install of Ubuntu 12.04 LTS server 64-bit (just a root user and nothing alse installed). I tried to install the mysql-server with the following command: apt-get install mysql-server The installation aborts with the following error: The following NEW packages will be installed: libdbd-mysql-perl{a} libmysqlclient18{a} mysql-client mysql-client-5.5{a} mysql-client-core-5.5{a} mysql-common{a} mysql-server mysql-server-5.5{a} mysql-server-core-5.5{a} 0 packages upgraded, 9 newly installed, 0 to remove and 0 not upgraded. Need to get 11.7 kB/26.2 MB of archives. After unpacking 94.5 MB will be used. Do you want to continue? [Y/n/?] y Get: 1 http://mirror.eu.oneandone.net/ubuntu/ubuntu/ precise/main mysql-client all 5.5.22-0ubuntu1 [11.7 kB] Fetched 11.7 kB in 0s (567 kB/s) Preconfiguring packages ... Selecting previously unselected package mysql-common. (Reading database ... 54008 files and directories currently installed.) Unpacking mysql-common (from .../mysql-common_5.5.22-0ubuntu1_all.deb) ... Selecting previously unselected package libmysqlclient18. Unpacking libmysqlclient18 (from .../libmysqlclient18_5.5.22-0ubuntu1_amd64.deb) ... Selecting previously unselected package libdbd-mysql-perl. Unpacking libdbd-mysql-perl (from .../libdbd-mysql-perl_4.020-1build2_amd64.deb) ... Selecting previously unselected package mysql-client-core-5.5. Unpacking mysql-client-core-5.5 (from .../mysql-client-core-5.5_5.5.22-0ubuntu1_amd64.deb) ... Selecting previously unselected package mysql-client-5.5. Unpacking mysql-client-5.5 (from .../mysql-client-5.5_5.5.22-0ubuntu1_amd64.deb) ... Selecting previously unselected package mysql-server-core-5.5. Unpacking mysql-server-core-5.5 (from .../mysql-server-core-5.5_5.5.22-0ubuntu1_amd64.deb) ... Processing triggers for man-db ... Setting up mysql-common (5.5.22-0ubuntu1) ... Selecting previously unselected package mysql-server-5.5. (Reading database ... 54189 files and directories currently installed.) Unpacking mysql-server-5.5 (from .../mysql-server-5.5_5.5.22-0ubuntu1_amd64.deb) ... Selecting previously unselected package mysql-client. Unpacking mysql-client (from .../mysql-client_5.5.22-0ubuntu1_all.deb) ... Selecting previously unselected package mysql-server. Unpacking mysql-server (from .../mysql-server_5.5.22-0ubuntu1_all.deb) ... Processing triggers for ureadahead ... Processing triggers for man-db ... Setting up libmysqlclient18 (5.5.22-0ubuntu1) ... Setting up libdbd-mysql-perl (4.020-1build2) ... Setting up mysql-client-core-5.5 (5.5.22-0ubuntu1) ... Setting up mysql-client-5.5 (5.5.22-0ubuntu1) ... Setting up mysql-server-core-5.5 (5.5.22-0ubuntu1) ... Setting up mysql-server-5.5 (5.5.22-0ubuntu1) ... 120502 10:17:41 [Note] Plugin 'FEDERATED' is disabled. 120502 10:17:41 InnoDB: The InnoDB memory heap is disabled 120502 10:17:41 InnoDB: Mutexes and rw_locks use GCC atomic builtins 120502 10:17:41 InnoDB: Compressed tables use zlib 1.2.3.4 120502 10:17:41 InnoDB: Initializing buffer pool, size = 128.0M 120502 10:17:41 InnoDB: Completed initialization of buffer pool 120502 10:17:41 InnoDB: highest supported file format is Barracuda. 120502 10:17:41 InnoDB: Waiting for the background threads to start 120502 10:17:42 InnoDB: 1.1.8 started; log sequence number 1595675 120502 10:17:42 InnoDB: Starting shutdown... 120502 10:17:42 InnoDB: Shutdown completed; log sequence number 1595675 start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 No apport report written because MaxReports is reached already Setting up mysql-client (5.5.22-0ubuntu1) ... dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured No apport report written because MaxReports is reached already Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: mysql-server-5.5 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: Setting up mysql-server-5.5 (5.5.22-0ubuntu1) ... start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: mysql-server-5.5 mysql-server I am completely lost because I have tried everything on the web to solve my problem (clearning the install, reconfiguring with dpkg, manually editing the my.cnf). I also set up a new clean install but nothing helped. What am I doing wrong? New information: The file /var/log/upstart/mysql.log contains the following error after the installation: AppArmor parser error for /etc/apparmor.d/usr.sbin.mysqld in /etc/apparmor.d/tunables/global at line 17: Could not open 'tunables/proc'

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  • C# 4.0: Dynamic Programming

    - by Paulo Morgado
    The major feature of C# 4.0 is dynamic programming. Not just dynamic typing, but dynamic in broader sense, which means talking to anything that is not statically typed to be a .NET object. Dynamic Language Runtime The Dynamic Language Runtime (DLR) is piece of technology that unifies dynamic programming on the .NET platform, the same way the Common Language Runtime (CLR) has been a common platform for statically typed languages. The CLR always had dynamic capabilities. You could always use reflection, but its main goal was never to be a dynamic programming environment and there were some features missing. The DLR is built on top of the CLR and adds those missing features to the .NET platform. The Dynamic Language Runtime is the core infrastructure that consists of: Expression Trees The same expression trees used in LINQ, now improved to support statements. Dynamic Dispatch Dispatches invocations to the appropriate binder. Call Site Caching For improved efficiency. Dynamic languages and languages with dynamic capabilities are built on top of the DLR. IronPython and IronRuby were already built on top of the DLR, and now, the support for using the DLR is being added to C# and Visual Basic. Other languages built on top of the CLR are expected to also use the DLR in the future. Underneath the DLR there are binders that talk to a variety of different technologies: .NET Binder Allows to talk to .NET objects. JavaScript Binder Allows to talk to JavaScript in SilverLight. IronPython Binder Allows to talk to IronPython. IronRuby Binder Allows to talk to IronRuby. COM Binder Allows to talk to COM. Whit all these binders it is possible to have a single programming experience to talk to all these environments that are not statically typed .NET objects. The dynamic Static Type Let’s take this traditional statically typed code: Calculator calculator = GetCalculator(); int sum = calculator.Sum(10, 20); Because the variable that receives the return value of the GetCalulator method is statically typed to be of type Calculator and, because the Calculator type has an Add method that receives two integers and returns an integer, it is possible to call that Sum method and assign its return value to a variable statically typed as integer. Now lets suppose the calculator was not a statically typed .NET class, but, instead, a COM object or some .NET code we don’t know he type of. All of the sudden it gets very painful to call the Add method: object calculator = GetCalculator(); Type calculatorType = calculator.GetType(); object res = calculatorType.InvokeMember("Add", BindingFlags.InvokeMethod, null, calculator, new object[] { 10, 20 }); int sum = Convert.ToInt32(res); And what if the calculator was a JavaScript object? ScriptObject calculator = GetCalculator(); object res = calculator.Invoke("Add", 10, 20); int sum = Convert.ToInt32(res); For each dynamic domain we have a different programming experience and that makes it very hard to unify the code. With C# 4.0 it becomes possible to write code this way: dynamic calculator = GetCalculator(); int sum = calculator.Add(10, 20); You simply declare a variable who’s static type is dynamic. dynamic is a pseudo-keyword (like var) that indicates to the compiler that operations on the calculator object will be done dynamically. The way you should look at dynamic is that it’s just like object (System.Object) with dynamic semantics associated. Anything can be assigned to a dynamic. dynamic x = 1; dynamic y = "Hello"; dynamic z = new List<int> { 1, 2, 3 }; At run-time, all object will have a type. In the above example x is of type System.Int32. When one or more operands in an operation are typed dynamic, member selection is deferred to run-time instead of compile-time. Then the run-time type is substituted in all variables and normal overload resolution is done, just like it would happen at compile-time. The result of any dynamic operation is always dynamic and, when a dynamic object is assigned to something else, a dynamic conversion will occur. Code Resolution Method double x = 1.75; double y = Math.Abs(x); compile-time double Abs(double x) dynamic x = 1.75; dynamic y = Math.Abs(x); run-time double Abs(double x) dynamic x = 2; dynamic y = Math.Abs(x); run-time int Abs(int x) The above code will always be strongly typed. The difference is that, in the first case the method resolution is done at compile-time, and the others it’s done ate run-time. IDynamicMetaObjectObject The DLR is pre-wired to know .NET objects, COM objects and so forth but any dynamic language can implement their own objects or you can implement your own objects in C# through the implementation of the IDynamicMetaObjectProvider interface. When an object implements IDynamicMetaObjectProvider, it can participate in the resolution of how method calls and property access is done. The .NET Framework already provides two implementations of IDynamicMetaObjectProvider: DynamicObject : IDynamicMetaObjectProvider The DynamicObject class enables you to define which operations can be performed on dynamic objects and how to perform those operations. For example, you can define what happens when you try to get or set an object property, call a method, or perform standard mathematical operations such as addition and multiplication. ExpandoObject : IDynamicMetaObjectProvider The ExpandoObject class enables you to add and delete members of its instances at run time and also to set and get values of these members. This class supports dynamic binding, which enables you to use standard syntax like sampleObject.sampleMember, instead of more complex syntax like sampleObject.GetAttribute("sampleMember").

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  • Ubuntu 14.04:LTS , HPLIP loses USB connection to HP laserjet

    - by Gareth
    This is my first post, so please let me know if i have inadvertanly broken any rules. Problem There seems to be a problem with HPLIP and USB connections in ubuntu 14.04LTS. After upgrading i managed to get the printing to work but today it has broken. Initial Issue (Solved) After upgrading to unbutntu 14.04 LTS my printer lHP LaserJet 1018 stopped printing (code=12) Looking through the Forumsthere are several issues with printitng and HPLIP so I was able to troubleshoot this. The steps I took were : Reran HPdoctor Ran hp-check Un-installed and installed the latest version of HPLIP (3.14.4) Checked the USB connections lsusb and lsusb-v Re-ran hpcheck Removed the printer from HPLIP Re-ran hpcheck Manually configued HPLIP to the printer hp-setup-g <xxx:yyy> And this worked HPLIP was able to see the printer in the USB , test page printed and was happily working for a few weeks. Current Issue Printer Not working However today my wife complains the printer is not working and checking see that although HPLIP has the same error code and did not seem to be able to see the printer although running lsusb could see the printer. Initially thought this may be due to usb given a new bus/device after being turned on and off and went to repeat the steps above at the moment still seeing an error in that the HPLIP is complaining that it cannot see the device **error: Device not found. Please make sure your printer is properly connected and powered-on.** current Observations lsusb output ## Bus 002 Device 007: ID 03f0:4117 Hewlett-Packard LaserJet 1018 sudo hp-check output *> "duan@duan-Lenovo-B550:~$ sudo hp-check [sudo] password for duan: Saving output in log file: /home/duan/hp-check.log HP Linux Imaging and Printing System (ver. 3.14.4) Dependency/Version Check Utility ver. 15.1 Copyright (c) 2001-13 Hewlett-Packard Development Company, LP This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to distribute it under certain conditions. See COPYING file for more details. Note: hp-check can be run in three modes: 1. Compile-time check mode (-c or --compile): Use this mode before compiling the HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies are installed to successfully compile HPLIP. Run-time check mode (-r or --run): Use this mode to determine if a distro supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball has the proper dependencies installed to successfully run. Both compile- and run-time check mode (-b or --both) (Default): This mode will check both of the above cases (both compile- and run-time dependencies). Full Output output of hp-setup -g 002:007 window box "device not found please make sure your printer is properly connected and powered on" duan@duan-Lenovo-B550:~$ sudo hp-setup -g 002:007 [sudo] password for duan: > HP Linux Imaging and Printing System (ver. 3.14.4) Printer/Fax Setup > Utility ver. 9.0 > > Copyright (c) 2001-13 Hewlett-Packard Development Company, LP This > software comes with ABSOLUTELY NO WARRANTY. This is free software, and > you are welcome to distribute it under certain conditions. See COPYING > file for more details. > > hp-setup[18461]: debug: param=002:007 hp-setup[18461]: debug: > selected_device_name=None Fontconfig error: > "/etc/fonts/conf.d/65-khmer.conf", line 14: out of memory Fontconfig > error: "/etc/fonts/conf.d/65-khmer.conf", line 23: out of memory > Fontconfig error: "/etc/fonts/conf.d/65-khmer.conf", line 32: out of > memory hp-setup[18461]: debug: Sys.argv=['/usr/bin/hp-setup', '-g', > '002:007'] printer_name=None param=002:007 jd_port=1 device_uri=None > remove=False Searching for device... hp-setup[18461]: debug: Trying > USB with bus=002 dev=007... hp-setup[18461]: debug: Not found. > hp-setup[18461]: debug: Trying serial number 002:007 hp-setup[18461]: > debug: Probing bus: usb hp-setup[18461]: debug: Probing bus: par > error: Device not found. Please make sure your printer is properly > connected and powered-on. hp-setup[18461]: debug: Starting GUI loop. .. USB lead Works with the Windows 7 laptop Printer Works with windows 7 laptop Questions Is this a Bug with HPLIP or an issue with laptop/printer? Supplementary question if it is a bug what information is needed and where should it be sent ? Any suggestions on how to get the printer to work correctly with Ubuntu 14.04LTS/HPLIP 13.4.3 so that it stays working ?

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  • Installing SharePoint 2013 on Windows 2012- standalone installation

    - by sreejukg
    In this article, I am going to share my experience while installing SharePoint 2013 on Windows 2012. This was the first time I tried SharePoint 2013. So I thought sharing the same will benefit somebody who would like to install SharePoint 2013 as a standalone installation. Standalone installation is meant for evaluation/development purposes. For production environments, you need to follow the best practices and create required service accounts. Microsoft has published the deployment guide for SharePoint 2013, you can download this from the below link. http://www.microsoft.com/en-us/download/details.aspx?id=30384 Since this is for development environment, I am not going to create any service account, I logged in to Windows 2012 as an administrator and just placed my installation DVD on the drive. When I run the setup from the DVD, the below splash screen appears. This reflects the new UI changes happening with all Microsoft based applications; the interface matches the metro style applications (Windows 8 style). As you can see the options are same as that of the SharePoint 2010 installation screen. Click on the “install software prerequisites” link to get all the prerequisites get installed. You need a valid internet connection to do this. Clicking on the install software prerequisites will bring the following dialog. Click Next, you will see the terms and conditions. Select I accept check box and click Next. The installation will start immediately. For any reason, if you stop the installation and start it later, the product preparation tool will check whether a particular component is installed and if yes, then the installation of that particular component will be skipped. If you do not have internet connection, you will face the download error as follows. At any point of failure, the error log will be available for you to review. If all OK, you will reach the below dialog, this means some components will be installed once the PC is rebooted. Be noted that the clicking on finish will not ask you for further confirmation. So make sure to save all your work before clicking on finish button. Once the server is restarted, the product preparation tool will start automatically and you will see the following dialog. Now go to the SharePoint 2013 splash page and click on “Install SharePoint Server” link. You need to enter the product key here. Enter the product key as you received and click continue. Select the Checkbox for the license agreement and click on continue button. Now you need to select the installation type. Select Stand-alone and click on “Install Now” button. A dialog will pop up that updates you with the process and progress. The installation took around 15-20 minutes with 2 GB or Ram installed in the server, seems fair. Once the installation is over, you will see the following Dialog. Make sure you select the Run the products and configuration wizard. If you miss to select the check box, you can find the products and configuration wizard from the start tiles. The products and configuration wizard will start. If you get any dialog saying some of the services will be stopped, you just accept it. Since we selected standalone installation, it will not ask for any user input, as it already knows the database to be configured. Once the configuration is over without any problems you will see the configuration successful message. Also you can find the link to central administration on the Start Screen.     Troubleshooting During my first setup process, I got the below error. System.ArgumentException: The SDDL string contains an invalid sid or a sid that cannot be translated. Parameter name: sddlForm at System.Security.AccessControl.RawSecurityDescriptor.BinaryFormFromSddlForm(String sddlForm) at System.Security.AccessControl.RawSecurityDescriptor..ctor(String sddlForm) at Microsoft.SharePoint.Win32.SPNetApi32.CreateShareSecurityDescriptor(String[] readNames, String[] changeNames, String[] fullControlNames, String& sddl) at Microsoft.SharePoint.Win32.SPNetApi32.CreateFileShare(String name, String description, String path) at Microsoft.SharePoint.Administration.SPServer.CreateFileShare(String name, String description, String path) at Microsoft.Office.Server.Search.Administration.AnalyticsAdministration.CreateAnalyticsUNCShare(String dirParentLocation, String shareName) at Microsoft.Office.Server.Search.Administration.AnalyticsAdministration.ProvisionAnalyticsShare(SearchServiceApplication serviceApplication) ………………………………………… ………………………………………… The configuration wizard displayed the error as below. The error occurred in step 8 of the configuration wizard and by the time the central administration is already provisioned. So from the start, I was able to open the central administration website, but the search service application was showing as error. I found a good blog that specifies the reason for error. http://kbdump.com/sharepoint2013-standalone-config-error-create-sample-data/ The workaround specified in the blog works fine. I think SharePoint must be provisioning Search using the Network Service account, so instead of giving permission to everyone, you could try giving permission to Network Service account(I didn’t try this yet, buy you could try and post your feedback here). In production environment you will have specific accounts that have access rights as recommended by Microsoft guidelines. Installation of SharePoint 2013 is pretty straight forward. Hope you enjoyed the article!

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  • How do I backup and restore the system clipboard in C#?

    - by gtaborga
    Hey everyone, I will do my best to explain in detail what I'm trying to achieve. I'm using C# with IntPtr window handles to perform a CTRL-C copy operation on an external application from my own C# application. I had to do this because there was no way of accessing the text directly using GET_TEXT. I'm then using the text content of that copy within my application. The problem here is that I have now overwritten the clipboard. What I would like to be able to do is: Backup the original contents of the clipboard which could have been set by any application other than my own. Then perform the copy and store the value into my application. Then restore the original contents of the clipboard so that the user still has access to his/her original clipboard data. This is the code I have tried so far: private void GetClipboardText() { text = ""; IDataObject backupClipboad = Clipboard.GetDataObject(); KeyboardInput input = new KeyboardInput(this); input.Copy(dialogHandle); // Performs a CTRL-C (copy) operation IDataObject clipboard = Clipboard.GetDataObject(); if (clipboard.GetDataPresent(DataFormats.Text)) { // Retrieves the text from the clipboard text = clipboard.GetData(DataFormats.Text) as string; } if (backupClipboad != null) { Clipboard.SetDataObject(backupClipboad, true); // throws exception } } I am using the System.Windows.Clipboard and not the System.Windows.Forms.Clipboard. The reason for this was that when I performed the CTRL-C, the Clipboard class from System.Windows.Forms did not return any data, but the system clipboard did. I looked into some of the low level user32 calls like OpenClipboard, EmptyClipboard, and CloseClipboard hoping that they would help my do this but so far I keep getting COM exceptions when trying to restore. I thought perhaps this had to do with the OpenClipboard parameter which is expecting an IntPtr window handle of the application which wants to take control of the clipboard. Since I mentioned that my application does not have a GUI this is a challenge. I wasn't sure what to pass here. Maybe someone can shed some light on that? Am I using the Clipboard class incorrectly? Is there a clear way to obtain the IntPtr window handle of an application with no GUI? Does anyone know of a better way to backup and restore the system clipboard?

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  • repair broken packages-"dpkg: error: conflicting actions -f (--field) and -r (--remove)"

    - by yinon
    Ubuntu 12.04 LTS. if more information will be needed, tell me and'll give. the main problem is: tzach@tzach-pc:~$ sudo apt-get install docky [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done docky is already the newest version. You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: ca-certificates-java : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not going to be installed or java6-runtime-headless openjdk-7-jre-lib : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). tzach@tzach-pc:~$ and also: tzach@tzach-pc:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these. **The following packages have unmet dependencies: ca-certificates-java : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not installed or java6-runtime-headless openjdk-7-jre-lib : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not installed E: Unmet dependencies. Try using ******* so we tryied the guide here in messege #9: http://ubuntuforums.org/showthread.php?t=947124 we run all the first 4 commands and the last one-"sudo apt-get autoremove" gave us: tzach@tzach-pc:~$ sudo apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies: **ca-certificates-java** : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not installed or java6-runtime-headless **openjdk-7-jre-lib** : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not installed E: Unmet dependencies. Try using -f. so we run the last command twice: sudo dpkg --remove -force --force-remove-reinstreq ca-certificates-java and sudo dpkg --remove -force --force-remove-reinstreq openjdk-7-jre-lib but both of them gives: tzach@tzach-pc:~$ sudo dpkg --remove -force --force-remove-reinstreq ca-certificates-java [sudo] password for tzach: dpkg: error: conflicting actions -f (--field) and -r (--remove) Type dpkg --help for help about installing and deinstalling packages [*]; Use `dselect' or `aptitude' for user-friendly package management; Type dpkg -Dhelp for a list of dpkg debug flag values; Type dpkg --force-help for a list of forcing options; Type dpkg-deb --help for help about manipulating *.deb files; Options marked [*] produce a lot of output - pipe it through `less' or `more' ! EDIT FOR green7-output of "sudo apt-get -f install": tzach@tzach-pc:~$ sudo apt-get -f install [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: icedtea-7-jre-cacao icedtea-7-jre-jamvm java-common openjdk-7-jre-headless tzdata-java Suggested packages: default-jre equivs sun-java6-fonts ttf-dejavu-extra fonts-ipafont-gothic fonts-ipafont-mincho ttf-telugu-fonts ttf-oriya-fonts ttf-kannada-fonts ttf-bengali-fonts The following packages will be REMOVED: ttf-mscorefonts-installer The following NEW packages will be installed: icedtea-7-jre-cacao icedtea-7-jre-jamvm java-common openjdk-7-jre-headless tzdata-java 0 upgraded, 5 newly installed, 1 to remove and 355 not upgraded. 5 not fully installed or removed. Need to get 0 B/29.6 MB of archives. After this operation, 88.5 MB of additional disk space will be used. Do you want to continue [Y/n]? y debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable dpkg: warning: there's no installed package matching ttf-mscorefonts-installer:amd64 Setting up tzdata (2012e-0ubuntu0.12.04) ... debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable dpkg: error processing tzdata (--configure): subprocess installed post-installation script returned error exit status 1 No apport report written because MaxReports is reached already Errors were encountered while processing: tzdata E: Sub-process /usr/bin/dpkg returned an error code (1) EDIT2 FOR green7: tzach@tzach-pc:~$ sudo apt-get remove --purge tzdata [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: ca-certificates-java : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not going to be installed or java6-runtime-headless libc6 : Depends: tzdata but it is not going to be installed libc6:i386 : Depends: tzdata:i386 libical0 : Depends: tzdata but it is not going to be installed openjdk-7-jre-lib : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not going to be installed python-dateutil : Depends: tzdata but it is not going to be installed ubuntu-minimal : Depends: tzdata but it is not going to be installed util-linux : Depends: tzdata (>= 2006c-2) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). EDIT3 FOR green7: tzach@tzach-pc:~$ sudo apt-get install openjdk-7-jre-headless [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: openjdk-7-jre-headless : Depends: tzdata-java but it is not going to be installed Depends: java-common (>= 0.28) but it is not going to be installed Recommends: icedtea-7-jre-cacao (= 7~u3-2.1.1~pre1-1ubuntu3) but it is not going to be installed Recommends: icedtea-7-jre-jamvm (= 7~u3-2.1.1~pre1-1ubuntu3) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). some things in the text also supposed to be bolded. but not critic (: Thanks for the editing! Thanks a lot for your assistance.

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  • Building extensions for Expression Blend 4 using MEF

    - by Timmy Kokke
    Introduction Although it was possible to write extensions for Expression Blend and Expression Design, it wasn’t very easy and out of the box only one addin could be used. With Expression Blend 4 it is possible to write extensions using MEF, the Managed Extensibility Framework. Until today there’s no documentation on how to build these extensions, so look thru the code with Reflector is something you’ll have to do very often. Because Blend and Design are build using WPF searching the visual tree with Snoop and Mole belong to the tools you’ll be using a lot exploring the possibilities.  Configuring the extension project Extensions are regular .NET class libraries. To create one, load up Visual Studio 2010 and start a new project. Because Blend is build using WPF, choose a WPF User Control Library from the Windows section and give it a name and location. I named mine DemoExtension1. Because Blend looks for addins named *.extension.dll  you’ll have to tell Visual Studio to use that in the Assembly Name. To change the Assembly Name right click your project and go to Properties. On the Application tab, add .Extension to name already in the Assembly name text field. To be able to debug this extension, I prefer to set the output path on the Build tab to the extensions folder of Expression Blend. This means that everything that used to go into the Debug folder is placed in the extensions folder. Including all referenced assemblies that have the copy local property set to false. One last setting. To be able to debug your extension you could start Blend and attach the debugger by hand. I like it to be able to just hit F5. Go to the Debug tab and add the the full path to Blend.exe in the Start external program text field. Extension Class Add a new class to the project.  This class needs to be inherited from the IPackage interface. The IPackage interface can be found in the Microsoft.Expression.Extensibility namespace. To get access to this namespace add Microsoft.Expression.Extensibility.dll to your references. This file can be found in the same folder as the (Expression Blend 4 Beta) Blend.exe file. Make sure the Copy Local property is set to false in this reference. After implementing the interface the class would look something like: using Microsoft.Expression.Extensibility; namespace DemoExtension1 { public class DemoExtension1:IPackage { public void Load(IServices services) { } public void Unload() { } } } These two methods are called when your addin is loaded and unloaded. The parameter passed to the Load method, IServices services, is your main entry point into Blend. The IServices interface exposes the GetService<T> method. You will be using this method a lot. Almost every part of Blend can be accessed thru a service. For example, you can use to get to the commanding services of Blend by calling GetService<ICommandService>() or to get to the Windowing services by calling GetService<IWindowService>(). To get Blend to load the extension we have to implement MEF. (You can get up to speed on MEF on the community site or read the blog of Mr. MEF, Glenn Block.)  In the case of Blend extensions, all that needs to be done is mark the class with an Export attribute and pass it the type of IPackage. The Export attribute can be found in the System.ComponentModel.Composition namespace which is part of the .NET 4 framework. You need to add this to your references. using System.ComponentModel.Composition; using Microsoft.Expression.Extensibility;   namespace DemoExtension1 { [Export(typeof(IPackage))] public class DemoExtension1:IPackage { Blend is able to find your addin now. Adding UI The addin doesn’t do very much at this point. The WPF User Control Library came with a UserControl so lets use that in this example. I just drop a Button and a TextBlock onto the surface of the control to have something to show in the demo. To get the UserControl to work in Blend it has to be registered with the WindowService.  Call GetService<IWindowService>() on the IServices interface to get access to the windowing services. The UserControl will be used in Blend on a Palette and has to be registered to enable it. This is done by calling the RegisterPalette on the IWindowService interface and passing it an identifier, an instance of the UserControl and a caption for the palette. public void Load(IServices services) { IWindowService windowService = services.GetService<IWindowService>(); UserControl1 uc = new UserControl1(); windowService.RegisterPalette("DemoExtension", uc, "Demo Extension"); } After hitting F5 to start debugging Expression Blend will start. You should be able to find the addin in the Window menu now. Activating this window will show the “Demo Extension” palette with the UserControl, style according to the settings of Blend. Now what? Because little is publicly known about how to access different parts of Blend adding breakpoints in Debug mode and browsing thru objects using the Quick Watch feature of Visual Studio is something you have to do very often. This demo extension can be used for that purpose very easily. Add the click event handler to the button on the UserControl. Change the contructor to take the IServices interface and store this in a field. Set a breakpoint in the Button_Click method. public partial class UserControl1 : UserControl { private readonly IServices _services;   public UserControl1(IServices services) { _services = services; InitializeComponent(); }   private void button1_Click(object sender, RoutedEventArgs e) { } } Change the call to the constructor in the load method and pass it the services property. public void Load(IServices services) { IWindowService service = services.GetService<IWindowService>(); UserControl1 uc = new UserControl1(services); service.RegisterPalette("DemoExtension", uc, "Demo Extension"); } Hit F5 to compile and start Blend. Got to the window menu and start show the addin. Click on  the button to hit the breakpoint. Now place the carrot text _services text in the code window and hit Shift+F9 to show the Quick Watch window. Now start exploring and discovering where to find everything you need.  More Information The are no official resources available yet. Microsoft has released one extension for expression Blend that is very useful as a reference, the Microsoft Expression Blend® Add-in Preview for Windows® Phone. This will install a .extension.dll file in the extension folder of Blend. You can load this file with Reflector and have a peek at how Microsoft is building his addins. Conclusion I hope this gives you something to get started building extensions for Expression Blend. Until Microsoft releases the final version, which hopefully includes more information about building extensions, we’ll have to work on documenting it in the community.

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  • Why does Xcode launch the iPhone simulator when the iPad simulator is selected?

    - by Dr Dork
    When I open an existing iPad project in Xcode and "Build and Run" it, it launches the iPhone simulator when I have the iPad Simulator set as the active executable? Inside the iPhone simulator is a shrunken version of the iPad. What is going on? How do I get it to run the iPad simulator? Note: When the iPhone Simulator is running, I double checked the Hardware-Device setting and it's set to iPad. This is what I want, of course, but I don't want it to run the iPhone simulator. I seem to recall it used to run an iPad simulator. Is there such a thing or am I tripping and there is only an iPhone simulator that can run iPad apps? Thanks in advance for your help!

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  • Help! cant login to my forum after .htaccess changes

    - by MrRioku
    I'm running a phpbb forum and I installed an SEO friendly URL Mod. After I installed it I wasn't able to login as the admin nor any other users... Well I've been messing around with this problem for a bit and I did find out that it was the .htaccess file that was causing me not to be able to login. I found out if I comment the canonical part out in the .htaccess file, my website allows me to login and see the working mod just fine but I get "http://phone7forum.com/" instead of what I want which is "http://www.phone7forum.com/ : enter code here # HERE IS A GOOD PLACE TO FORCE CANONICAL DOMAIN # RewriteCond %{HTTP_HOST} !^www\.phone7forum\.com$ [NC] # RewriteRule ^(.*)$ http://www.phone7forum.com/$1 [QSA,L,R=301] enter code here I definitely want the "http://www." since its the best method and holds the best weight.. But when I un-comment it, it will not allow me to login as the admin nor any user... Is there anything I can do to fix this matter??? I'd like to add, before I found this website I installed the Mod "Canonical URL" found here: http://www.phpbb.com/customise/db/mod/canonical_url/ Possibly this might be part of my issue? Maybe I should go undo everything that Mod told me to do and then try un-commenting the canonical section in the .htaccess file? Here is my complete .htaccess file as of now that produces the "http://phone7forum.com/" and allows me to login: [code] # Lines That should already be in your .htacess <Files "config.php"> Order Allow,Deny Deny from All </Files> <Files "common.php"> Order Allow,Deny Deny from All </Files> # You may need to un-comment the following lines # Options +FollowSymlinks # To make sure that rewritten dir or file (/|.html) will not load dir.php in case it exist # Options -MultiViews # REMEBER YOU ONLY NEED TO STARD MOD REWRITE ONCE RewriteEngine On # Uncomment the statement below if you want to make use of # HTTP authentication and it does not already work. # This could be required if you are for example using PHP via Apache CGI. # RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L] # REWRITE BASE RewriteBase / # HERE IS A GOOD PLACE TO FORCE CANONICAL DOMAIN # RewriteCond %{HTTP_HOST} !^www\.phone7forum\.com$ [NC] # RewriteRule ^(.*)$ http://www.phone7forum.com/$1 [QSA,L,R=301] # DO NOT GO FURTHER IF THE REQUESTED FILE / DIR DOES EXISTS RewriteCond %{REQUEST_FILENAME} -f RewriteCond %{REQUEST_FILENAME} -d RewriteRule . - [L] ##################################################### # PHPBB SEO REWRITE RULES ALL MODES ##################################################### # AUTHOR : dcz www.phpbb-seo.com # STARTED : 01/2006 ################################# # FORUMS PAGES ############### # FORUM INDEX REWRITERULE WOULD STAND HERE IF USED. "forum" REQUIRES TO BE SET AS FORUM INDEX # RewriteRule ^forum\.html$ index.php [QSA,L,NC] # FORUM ALL MODES RewriteRule ^(forum|[a-z0-9_-]*-f)([0-9]+)/?(page([0-9]+)\.html)?$ viewforum.php?f=$2&start=$4 [QSA,L,NC] # TOPIC WITH VIRTUAL FOLDER ALL MODES RewriteRule ^(forum|[a-z0-9_-]*-f)([0-9]+)/(topic|[a-z0-9_-]*-t)([0-9]+)(-([0-9]+))?\.html$ viewtopic.php?f=$2&t=$4&start=$6 [QSA,L,NC] # TOPIC WITHOUT FORUM ID & DELIM ALL MODES RewriteRule ^([a-z0-9_-]*)/?(topic|[a-z0-9_-]*-t)([0-9]+)(-([0-9]+))?\.html$ viewtopic.php?forum_uri=$1&t=$3&start=$5 [QSA,L,NC] # PHPBB FILES ALL MODES RewriteRule ^resources/[a-z0-9_-]+/(thumb/)?([0-9]+)$ download/file.php?id=$2&t=$1 [QSA,L,NC] # PROFILES ALL MODES WITH ID RewriteRule ^(member|[a-z0-9_-]*-u)([0-9]+)\.html$ memberlist.php?mode=viewprofile&u=$2 [QSA,L,NC] # USER MESSAGES ALL MODES WITH ID RewriteRule ^(member|[a-z0-9_-]*-u)([0-9]+)-(topics|posts)(-([0-9]+))?\.html$ search.php?author_id=$2&sr=$3&start=$5 [QSA,L,NC] # GROUPS ALL MODES RewriteRule ^(group|[a-z0-9_-]*-g)([0-9]+)(-([0-9]+))?\.html$ memberlist.php?mode=group&g=$2&start=$4 [QSA,L,NC] # POST RewriteRule ^post([0-9]+)\.html$ viewtopic.php?p=$1 [QSA,L,NC] # ACTIVE TOPICS RewriteRule ^active-topics(-([0-9]+))?\.html$ search.php?search_id=active_topics&start=$2&sr=topics [QSA,L,NC] # UNANSWERED TOPICS RewriteRule ^unanswered(-([0-9]+))?\.html$ search.php?search_id=unanswered&start=$2&sr=topics [QSA,L,NC] # NEW POSTS RewriteRule ^newposts(-([0-9]+))?\.html$ search.php?search_id=newposts&start=$2&sr=topics [QSA,L,NC] # UNREAD POSTS RewriteRule ^unreadposts(-([0-9]+))?\.html$ search.php?search_id=unreadposts&start=$2 [QSA,L,NC] # THE TEAM RewriteRule ^the-team\.html$ memberlist.php?mode=leaders [QSA,L,NC] # HERE IS A GOOD PLACE TO ADD OTHER PHPBB RELATED REWRITERULES # FORUM WITHOUT ID & DELIM ALL MODES # THESE THREE LINES MUST BE LOCATED AT THE END OF YOUR HTACCESS TO WORK PROPERLY RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^([a-z0-9_-]+)/?(page([0-9]+)\.html)?$ viewforum.php?forum_uri=$1&start=$3 [QSA,L,NC] # FIX RELATIVE PATHS : FILES RewriteRule ^.+/(style\.php|ucp\.php|mcp\.php|faq\.php|download/file.php)$ $1 [QSA,L,NC,R=301] # FIX RELATIVE PATHS : IMAGES RewriteRule ^.+/(styles/.*|images/.*)/$ $1 [QSA,L,NC,R=301] # END PHPBB PAGES ##################################################### [/code] Does anyone have any clues as to what I need to do? Any help will be greatly appreciated! Thanks, Justin

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  • Dojo extending dojo.dnd.Source, move not happening. Ideas?

    - by Soulhuntre
    Hey all, Ok... I have a simple dojo page with the bare essentials. Three UL's with some LI's in them. The idea si to allow drag-n-drop among them but if any UL goes empty due to the last item being dragged out, I will put up a message to the user to gie them some instructions. In order to do that, I wanted to extend the dojo.dnd.Source dijit and add some intelligence. It seemed easy enough. To keep things simple (I am loading Dojo from a CDN) I am simply declating my extension as opposed to doing full on module load. The declaration function is here... function declare_mockupSmartDndUl(){ dojo.require("dojo.dnd.Source"); dojo.provide("mockup.SmartDndUl"); dojo.declare("mockup.SmartDndUl", dojo.dnd.Source, { markupFactory: function(params, node){ //params._skipStartup = true; return new mockup.SmartDndUl(node, params); }, onDndDrop: function(source, nodes, copy){ console.debug('onDndDrop!'); if(this == source){ // reordering items console.debug('moving items from us'); // DO SOMETHING HERE }else{ // moving items to us console.debug('moving items to us'); // DO SOMETHING HERE } console.debug('this = ' + this ); console.debug('source = ' + source ); console.debug('nodes = ' + nodes); console.debug('copy = ' + copy); return dojo.dnd.Source.prototype.onDndDrop.call(this, source, nodes, copy); } }); } I have a init function to use this to decorate the lists... dojo.addOnLoad(function(){ declare_mockupSmartDndUl(); if(dojo.byId('list1')){ //new mockup.SmartDndUl(dojo.byId('list1')); new dojo.dnd.Source(dojo.byId('list1')); } if(dojo.byId('list2')){ new mockup.SmartDndUl(dojo.byId('list2')); //new dojo.dnd.Source(dojo.byId('list2')); } if(dojo.byId('list3')){ new mockup.SmartDndUl(dojo.byId('list3')); //new dojo.dnd.Source(dojo.byId('list3')); } }); It is fine as far as it goes, you will notice I left "list1" as a standard dojo dnd source for testing. The problem is this - list1 will happily accept items from lists 2 & 3 who will move or copy as apprriate. However lists 2 & 3 refuce to accept items from list1. It is as if the DND operation is being cancelled, but the debugger does show the dojo.dnd.Source.prototype.onDndDrop.call happening, and the paramaters do look ok to me. Now, the documentation here is really weak, so the example I took some of this from may be way out of date (I am using 1.4). Can anyone fill me in on what might be the issue with my extension dijit? Thanks!

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  • Beginner Geek: How to Use Bookmarklets on Any Device

    - by Chris Hoffman
    Web browser bookmarklets allow you to perform actions on the current page with just a click or tap. They’re a lightweight alternative to browser extensions. They even work on mobile browsers that don’t support traditional extensions. To use bookmarklets, all you need is a web browser that supports bookmarks — that’s it! Bookmarklets Explained Web pages you view in your browser use JavaScript code. That’s why web pages aren’t just static documents anymore — they’re dynamic. A bookmarklet is a normal bookmark with a piece of JavaScript code instead of a web address. When you click or tap the bookmarklet, it will execute the JavaScript code on the current page instead of loading a different page, as most bookmarks do. Bookmarklets can be used to do something to a web page with a single click. For example, you’ll find bookmarklets associated with web services like Twitter, Facebook, Google+, LinkedIn, Pocket, and LastPass. When you click the bookmarklet, it will run code that lets you easily share the current page with that service. Bookmarklets don’t just have to be  associated with web services. A bookmarklet you click could modify the appearance of the page, stripping away most of the junk and giving you a clean “reading mode.” It could alter fonts, remove images, or insert other content. It can access anything the web page could access. For example, you could use a bookmarklet to reveal a password that just appears as ******* on the page. Unlike browser extensions, bookmarklets don’t run in the background and bog down your browser. They don’t do anything at all until you click them. Because they just use the standard bookmark system, they can also be used in mobile browsers where you couldn’t run extensions. For example, you could install the Pocket bookmarklet in Safari on an iPad and get an “Add to Pocket” option in Safari. Safari doesn’t offer browsing extensions and Apple’s iOS doesn’t offer a “Share” feature like Android and Windows 8 do, so this is the only way to get this direct integration. You could even use the LastPass bookmarklets in Safari on an iPad to integrate LastPass with the Safari web browser. Where to Find Bookmarklets If you’re looking for a bookmarklet for a particular service, you’ll generally find the bookmarklet on that service’s site. Websites like Twitter, Facebook, and Pocket host pages where they provide bookmarklets along with browser extensions. Bookmarklets aren’t like programs. They’re really just a piece of text that you can put in a bookmarklet, so you don’t have to download them a specific site. You can get them from practically anywhere — installing them just involves copying a bit of text off of a web page. For example, you can just search the web for “reveal password bookmarklet” if you wanted a bookmarklet that will reveal passwords. We’ve covered many of the must-have bookmarklets — and our readers have chimed in too — so take a look at our lists for more examples. How to Install a Bookmarklet Bookmarklets are simple to install. When you hover over a bookmarklet on a web page, you’ll see its address begins with “javascript:”. If you have your web browser’s bookmark or favorites toolbar visible, the easiest way to install a bookmarklet is with drag-and-drop. Press Ctrl+Shift+B to show your bookmarks toolbar if you’re using Chrome or Internet Explorer. In Firefox, right-click the toolbar and click Bookmarks Toolbar. Just drag and drop this link to your bookmark toolbar. The bookmarklet is now installed. You can also install bookmarklets manually. Select the bookmarklet’s code and copy it to your clipboard. If the bookmarklet is a link, right-click or long-press the link and copy its address to your clipboard. Open your browser’s bookmarks manager, add a bookmark, and paste the JavaScript code directly into the address box. Give your bookmarklet a name and save it. How to Use a Bookmarklet Bookmarklets are easiest to use if you have your browser’s bookmarks toolbar enabled. Just click the bookmarklet and your browser will run it on the current page. If you don’t have a bookmarks toolbar — such as on Safari on an iPad or another mobile browser — just open your browser’s bookmarks pane and tap or click the bookmark. In mobile Chrome, you’ll need to launch the bookmarklet from the location bar. Open the web page you want to run the bookmarklet on, tap your location bar, and start searching for the name of the bookmarklet. Tap the bookmarklet’s name to run it on the current page. Note that the bookmarklet only appears here because we have it saved as a bookmark in Chrome. You’ll need to add the bookmarklet to your browser’s bookmarks before you can use it in this way. The location bar approach may also be necessary in other browsers. The trick is loading the bookmark so that it will be associated with your current tab. You can’t just open your bookmarks in a separate browser tab and run the bookmarklet from there — it will run on that other browser tab. Bookmarklets are powerful and flexible. While they’re not as flashy as browser extensions, they’re much more lightweight and allow you to get extension-like features in more limited mobile browsers.

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  • My block is not retaining some of its objects

    - by Drew Crawford
    From the Blocks documentation: In a reference-counted environment, by default when you reference an Objective-C object within a block, it is retained. This is true even if you simply reference an instance variable of the object. I am trying to implement a completion handler pattern, where a block is given to an object before the work is performed and the block is executed by the receiver after the work is performed. Since I am being a good memory citizen, the block should own the objects it references in the completion handler and then they will be released when the block goes out of scope. I know enough to know that I must copy the block to move it to the heap since the block will survive the stack scope in which it was declared. However, one of my objects is getting deallocated unexpectedly. After some playing around, it appears that certain objects are not retained when the block is copied to the heap, while other objects are. I am not sure what I am doing wrong. Here's the smallest test case I can produce: typedef void (^ActionBlock)(UIView*); In the scope of some method: NSObject *o = [[[NSObject alloc] init] autorelease]; mailViewController = [[[MFMailComposeViewController alloc] init] autorelease]; NSLog(@"o's retain count is %d",[o retainCount]); NSLog(@"mailViewController's retain count is %d",[mailViewController retainCount]); ActionBlock myBlock = ^(UIView *view) { [mailViewController setCcRecipients:[NSArray arrayWithObjects:@"[email protected]",nil]]; [o class]; }; NSLog(@"mailViewController's retain count after the block is %d",[mailViewController retainCount]); NSLog(@"o's retain count after the block is %d",[o retainCount]); Block_copy(myBlock); NSLog(@"o's retain count after the copy is %d",[o retainCount]); NSLog(@"mailViewController's retain count after the copy is %d",[mailViewController retainCount]); I expect both objects to be retained by the block at some point, and I certainly expect their retain counts to be identical. Instead, I get this output: o's retain count is 1 mailViewController's retain count is 1 mailViewController's retain count after the block is 1 o's retain count after the block is 1 o's retain count after the copy is 2 mailViewController's retain count after the copy is 1 o (subclass of NSObject) is getting retained properly and will not go out of scope. However mailViewController is not retained and will be deallocated before the block is run, causing a crash.

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