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• Synching folders other than the default Ubuntu One folder doesn't seem to work on Windows

  - by Gordon

  I have installed Ubuntu One on two machines - one Windows 7 and one Windows XP. I have added a folder from the computer using the "Add Folder" button on the Windows 7 machine. The Ubuntu One dialog box tells me that file synch is finished and up to date. I now have two problems. If I log on to my Ubuntu One account on the web, I can see what appears to be a LINK to the synched folder - I cannot open the folder and see the contents. This is what I see in the Files page of my Ubuntu one account: ~/Documents/Computing/Test On the second machine, after synching is complete, I see the folder but NOT the contents. The folder is EMPTY. Can anyone provide a solution as to a) what is happening and b) how do I get this folder to synch properly on the other locations?

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• SQL SERVER – The Story of a Lesser Known Startup Parameter in SQL Server – Guest Post by Balmukund Lakhani

  - by Pinal Dave

  This is a fantastic blog post from my dear friend Balmukund ( blog | twitter | facebook ). He had presented a fantastic session in our last UG and there were lots of requests from attendees that he blogs about it. Well, here is the blog post about the same very popular UG session. Let us read the entire blog post in the voice of the Balmukund himself. During my last session in SQL Bangalore User Group (Facebook) meeting, I was lucky enough to deliver a session on SQL Server Startup issue. The name of the session was “SQL Engine Starting Trouble – How to start?” From the feedback, I realized that one of the “not well known” startup parameter is “-m”. Okay, you might say “I know that this is used to start the SQL in single user mode”. But what you might not know is that you can pass a string with -m which has special meaning and use. I have used this parameter in my blog here but looks like not many of you have seen that. It happens most of the time when we want to start SQL Server in single user mode, someone else makes connection before you can. The only choice you have is to repeat same process again till you succeed. Some smart DBAs may disable the remote network protocols (TCP/IP and Named Pipes) of SQL Instance and allow only local connections to SQL. Once the activity is complete, our dear smart DBA has to remember to re-enable network protocols. Sometimes, it may be a local service or application getting connection to SQL before we can. There is a better way to deal with it. Yes, you have guessed it correctly: -m parameter which a string. Since I work with SQL Product Support team, I may know little more undocumented commands and parameters, but this is not an undocumented stuff. It’s already documented in books online. So in this blog, I am going to show a demo of its usage. As documentation shows, “Do not use this option as a security feature.” So please read this blog as knowledge enhancer and troubleshooting issues not security feature. In my laptop, I have a default instance of SQL Server 2012 and here is what we would in the configuration manager. Now, I would go ahead and stop SQL Service by selecting SQL Server (MSSQLServer) > Right Click > Stop. There are multiple ways to start SQL with startup parameter. 1) Use Net Start Command from command prompt Net Start MSSQLServer /mSQLCMD The above command is the simplest way to add startup parameter to SQL. This parameter would be cleared once we stop and start SQL. 2) Add Startup Parameter via configuration manager. Step is already listed here. We need to add -mSQLCMD If we compare 1 and 2, it’s clear that unless we modify startup parameter and remove -m, it would be in effect. 3) Start SQL Service via command line SQLServr.exe –mSQLCMD –s<InstanceName> Wait, what does SQLCMD mean with /m? It’s the instruction to SQL that start SQL Server in Single User Mode and allow only the application which is SQLCMD. Any other application would fail with Login Failed for User Error message. It would be important to note that string is case sensitive. This value should be picked up from application_name column from sys.dm_exec_sessions. I have made a connection using SQLCMD and as we can see it comes as upper case “SQLCMD”. If we want only management studio query windows to connect then we need to give -m” Microsoft SQL Server Management Studio – Query” as startup parameter. In below example, I have given it as SQLCMd (lower case d at the end) and we would notice that we would not be able to connect to SQL Instance. Above proves that parameter works as expected and it’s case sensitive. Error Log would show below information. How to get error log location? I have already blogged about it. Hope you have learned something new. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology

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• Setup a vpn server on Ubuntu server, but client can't setup a connection

  - by Jing

  I setup a vpn server using pptpd on the ubuntu server which is installed in a virtual box machine on a windows 7 desktop. I configure the vpn server and port forwarding in the windows. However, I cannot setup a connection to the server. Here's the ubuntu log I got when I tried to connect to this vpn server Anyone can help me solve this problem? Also, is there any alternative way to setup a vpn server on windows or virtual machine installed on windows? Thanks!

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• WLST Script changing logfile location

  - by JuergenKress

  by Marc Keldermann Twitter & LinkedIn While I was migrating Forms6i to Forms11g patch set #5, the configuration tool of Forms11g is a bit strict. In the silent install it is not possible to set de locations of the log files. Here is the script that will set new filename locations of all the Managed Server s and Admin Server in the domain. It also set the filename location of all the ODL logging. Read the full article by Marc. WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: WLST script,Marc Keldermann,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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• SQL SERVER Find Most Active Database in SQL Server DMV dm_io_virtual_file_stats

  Few days ago, I wrote about SQL SERVER Find Current Location of Data and Log File of All the Database. There was very interesting conversation in comments by blog readers. Blog reader and SQL Expert Sreedhar has very interesting DMV presented which lists the most active database in SQL Server. For quick reference he [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Killing Stuck Child JVM's

  - by ACShorten

  Note: This facility only applies to Oracle Utilities Application Framework products using COBOL. In some situations, the Child JVM's may spin. This causes multiple startup/shutdown Child JVM messages to be displayed and recursive child JVM's to be initiated and shunned. If the following: Unable to establish connection on port …. after waiting .. seconds.The issue can be caused intermittently by CPU spins in connection to the creation of new processes, specifically Child JVMs. Recursive (or double) invocation of the System.exit call in the remote JVM may be caused by a Process.destroy call that the parent JVM always issues when shunning a JVM. The issue may happen when the thread in the parent JVM that is responsible for the recycling gets stuck and it affects all child JVMs. If this issue occurs at your site then there are a number of options to address the issue: Configure an Operating System level kill command to force the Child JVM to be shunned when it becomes stuck. Configure a Process.destroy command to be used if the kill command is not configured or desired. Specify a time tolerance to detect stuck threads before issuing the Process.destroy or kill commands. Note: This facility is also used when the Parent JVM is also shutdown to ensure no zombie Child JVM's exit. The following additional settings must be added to the spl.properties for the Business Application Server to use this facility: spl.runtime.cobol.remote.kill.command – Specify the command to kill the Child JVM process. This can be a command or specify a script to execute to provide additional information. The kill.command property can accept two arguments, {pid} and {jvmNumber}, in the specified string. The arguments must be enclosed in curly braces as shown here. Note: The PID will be appended to the killcmd string, unless the {pid} and {jvmNumber} arguments are specified. The jvmNumber can be useful if passed to a script for logging purposes. Note: If a script is used it must be in the path and be executable by the OS user running the system. spl.runtime.cobol.remote.destroy.enabled – Specify whether to use the Process.destroy command instead of the kill command. Specify true or false. Default value is false. Note: Unless otherwise required, it is recommended to use the kill command option if shunning JVM's is an issue. There this value can remain its default value, false, unless otherwise required. spl.runtime.cobol.remote.kill.delaysecs – Specify the number of seconds to wait for the Child JVM to terminate naturally before issuing the Process.destroy or kill commands. Default is 10 seconds. For example: spl.runtime.cobol.remote.kill.command=kill -9 {pid} {jvmNumber}spl.runtime.cobol.remote.destroy.enabled=falsespl.runtime.cobol.remote.kill.delaysecs=10 When a Child JVM is to be recycled, these properties are inspected and the spl.runtime.cobol.remote.kill.command, executed if provided. This is done after waiting for spl.runtime.cobol.remote.kill.delaysecs seconds to give the JVM time to shut itself down. The spl.runtime.cobol.remote.destroy.enabled property must be set to true AND the spl.runtime.cobol.remote.kill.command omitted for the original Process.destroy command to be used on the process. Note: By default the spl.runtime.cobol.remote.destroy enabled is set to false and is therefore disabled. If neither spl.runtime.cobol.remote.kill.command nor spl.runtime.cobol.remote.destroy.enabled is specified, child JVMs will not beforcibly killed. They will be left to shut themselves down (which may lead to orphan JVMs). If both are specified, the spl.runtime.cobol.remote.kill.command is preferred and spl.runtime.cobol.remote.destroy.enabled defaulted to false.It is recommended to invoke a script to issue the direct kill command instead of directly using the kill -9 commands.For example, the following sample script ensures that the process Id is an active cobjrun process before issuing the kill command: forcequit.sh #!/bin/shTHETIME=`date +"%Y-%m-%d %H:%M:%S"`if [ "$1" = "" ]then  echo "$THETIME: Process Id is required" >>$SPLSYSTEMLOGS/forcequit.log  exit 1fijavaexec=cobjrunps e $1 | grep -c $javaexecif [ $? = 0 ]then  echo "$THETIME: Process $1 is an active $javaexec process -- issuing kill-9 $1" >>$SPLSYSTEMLOGS/forcequit.log  kill -9 $1exit 0else  echo "$THETIME: Process id $1 is not a $javaexec process or not active --  kill will not be issued" >>$SPLSYSTEMLOGS/forcequit.logexit 1fi This script's name would then be specified as the value for the spl.runtime.cobol.remote.kill.command property, for example: spl.runtime.cobol.remote.kill.command=forcequit.sh The forcequit script does not have any explicit parameters but pid is passed automatically. To use the jvmNumber parameter it must explicitly specified in the command. For example, to call script forcequit.sh and pass it the pid and the child JVM number, specify it as follows: spl.runtime.cobol.remote.kill.command=forcequit.sh {pid} {jvmNumber} The script can then use the JVM number for logging purposes or to further ensure that the correct pid is being killed.If the arguments are omitted, the pid is automatically appended to the spl.runtime.cobol.remote.kill.command string. To use this facility the following patches must be installed: Patch 13719584 for Oracle Utilities Application Framework V2.1, Patches 13684595 and 13634933 for Oracle Utilities Application Framework V2.2 Group Fix 4 (as Patch 13640668) for Oracle Utilities Application Framework V4.1.

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• Logkeys fragile?

  - by Ahmed Nematallah

  The program logkeys (which seems to be the only keylogger for linux out there which I can run) has some problems, it stops logging after some time, never returns again, I don't know how to trigger that bug, if the file is edited while logging, it just stops, if the file exists before logging it doesn't try to append to it or delete it or anything, the first issue is the most important but the rest are quite annoying can anyone help me because I'm not a linux programmer (I don't really know anything about the linux API but I am a beginner C++ programmer) and I won't be able to make my own keylogger thanks for the interest BTW I'm sure I got the right input device because it starts logging then stops and I use the command "logkeys -s -u -d /dev/input/event3 -o '/home/ahmed/Documents/log.txt'"

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• Monitoring Database disk space

  - by Michael Freidgeim

  An article Data files: To Autogrow Or Not To Autogrow? recommends NOT to rely on auto-grow, because it causing delays in unplanned times.We should mtonitor database files(both data and log), and if they close to max capacity, manually increase the size. However it doesn't give references, how to monitor the free space inside databases. I've tried to look how to do it. It can be done manually using   execute sp_spaceused for the database in question or  sp_SOS (can be downloaded from http://searchsqlserver.techtarget.com/tip/Find-size-of-SQL-Server-tables-and-other-objects-with-stored-procedure)Alternatively you can run SQL commands as suggested in Http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=82359 by Michael Valentine Jonesselect [FREE_SPACE_MB] = convert(decimal(12,2),round((a.size-fileproperty(a.name,'SpaceUsed'))/128.000,2)) from dbo.sysfiles aMore useful article Monitor database file sizes with SQL Server Jobs describes how to setup monitoring Finally I found the excellent articleManaging Database Data Usage With Custom Space Alerts, that can be followed even support personnel without much DBA experience.

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• Ubuntu Server available updates

  - by Rapture

  In Ubuntu 11.04 Server when I would log in via ssh it would tell me how many packages are available for updating in the welcome message. After upgrading to 11.10 I no longer get that information. Is there a package I need to install or a config file that needs changing? 11.04 output: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-generic x86_64) * Documentation: https://help.ubuntu.com/ 32 packages can be updated. 8 updates are security updates. Last login: Mon Nov 21 16:19:01 2011 from han-solo.local 11.10 output: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-server x86_64) * Documentation: https://help.ubuntu.com/11.10/serverguide/C No mail. Last login: Tue Nov 22 19:07:19 2011 from han-solo.local

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• Deleting old tomcat version and setting a new one

  - by Diego

  I had Apache Tomcat installed by apt-get, however I decided to get a newer one, performed apt-get remove tomcat7 and apt-get purge tomcat7. I installed a newer one means the bundled Tomcat Server in NetBeans install. However, Im still seeing the old fashioned page from former Tomcat install: It works ! If you're seeing this page via a web browser, it means you've setup Tomcat successfully. Congratulations! This is the default Tomcat home page. It can be found on the local filesystem at: /var/lib/tomcat7/webapps/ROOT/index.html I already set a different port in the server.xml file and whenever I go that site after executing the startup.sh file with sudo permissions I'm not getting any site like server (new one) isn't running. How can I still be getting the page from old Tomcat install!? When I execute the startup.sh log says all is set OK, so why isn't it working?

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• Disk failing on dell mini, are there diagnostic tools?

  - by John Lawrence Aspden

  Hi, my dell mini 10v running Ubuntu 10.10 runs ok for hours, but then will suddenly slow down drastically. Switching to a console shows lots of error messages, which also get into /var/log/syslog. These errors happen every couple of seconds. I'm figuring that the disk is failing, but is there anyway to be sure, and can laptop disks be replaced easily? Mar 20 11:08:12 dell-mini kernel: [ 2476.378774] ata1.00: status: { DRDY ERR } Mar 20 11:08:12 dell-mini kernel: [ 2476.378785] ata1.00: error: { UNC } Mar 20 11:08:12 dell-mini kernel: [ 2476.449841] ata1.00: configured for UDMA/133 Mar 20 11:08:12 dell-mini kernel: [ 2476.449887] ata1: EH complete Mar 20 11:08:14 dell-mini kernel: [ 2478.777754] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 Mar 20 11:08:14 dell-mini kernel: [ 2478.777976] ata1.00: BMDMA stat 0x24 Mar 20 11:08:14 dell-mini kernel: [ 2478.778059] ata1.00: failed command: READ DMA Mar 20 11:08:14 dell-mini kernel: [ 2478.778162] ata1.00: cmd c8/00:08:43:3b:97/00:00:00:00:00/e0 tag 0 dma 4096 in Mar 20 11:08:14 dell-mini kernel: [ 2478.778166] res 51/40:00:47:3b:97/00:00:00:00:00/00 Emask 0x9 (media error)

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• How can I embed an existing podcast into my website?

  - by michaellindahl

  I manage a podcast and a website, currently they are separate but I would like to have a way to embed the podcast into the website, I still want to create/update the podcast separate from the website I just want visitors to be able to listen to the podcast on the website without having to open iTunes while still having the ability to choose what episode to play. The best solution I have found is: http://tools.wizzard.tv/ but I do not like it that much. Currently I have to log on and click refresh for it to recognize new episodes. I want to be able to update the podcast, and just like how iTunes will be updated I want the page on the website to be updated as well. The 'podcast' page will most likely not be like a blog but have a Flash or Java script application that will pull the info from the podcast.xml file to show the episodes.

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• hardy alternate cd customization and ubuntu-keyring-udeb

  - by gokul

  I have been trying to customize Ubuntu 8.04 (hardy heron) alternate install cd. I have followed the community documentation at https://help.ubuntu.com/community/InstallCDCustomization#Generating_a_new_ubuntu-keyring_.deb_to_sign_your_CD to rebuild the ubuntu-keyring packages. But when the media boots I get a warning: anna[7581]: WARNING **: bad md5sum. Though I have not been able to confirm that the message is for the ubunu-keyring-udeb package, the nearest debconf Adding [package] message is for ubuntu-keyring-udeb. This is followed by: INPUT critical retriever/cdrom/error. This message is already from syslog. I don't think dpkg.log will help in this case. I have tried modifying the md5sum file within the source package manually and signing it with my own public key, before building it. But that has not helped either. How do get the installer to work in this scenario? Alternatively, can I customize the contents of Ubuntu8.04 without signing anything?

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• Central Exception Handler

  - by J-unior

  Recently I've been thinking about a general ExceptionHandler, that I could initialize once in my app context and inject it everywhere. The idea that it will have quite simple interface with just public void handle(Exception ex), and then according to exception type it should decide what to do, maybe just log it, or show an alert message to the user, or maybe kill the whole app. The question is, what is the prettiest way to write such handler without lots of instanceofs? Unfortunately googling gives me only the default exception handler for RuntimeException that was introduced in Java 5. My first idea is to create an enum, that will have Class field for exception type and it will return the appropriate execution point, for example a concrete exception handler that also implements the interface public void handle(Exception ex), but with the required casting already.

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• Finding an alert in the middle of your javascript

  - by Ariel Popovsky

  I was debugging a script injection issue the other day using some sample code with an alert in it. The alert was popping out meaning the code got executed leaving open the possibility for a hacker to put there some nasty malicious code. I knew my alert was being executed but didn’t know how. So I tried something that worked perfectly for this problem, replaced the native alert function with my own one. All I had to do in Chrome was open the javascript console and type: alert = function(msg){ console.log(msg); console.trace(); }; The next time the malicious code was executed, instead of the regular alert I got something similar to this:   alert("testing") testing console.trace() alert:2 (anonymous function):2 InjectedScript._evaluateOn:312 InjectedScript._evaluateAndWrap:294 InjectedScript.evaluate:288 undefined In my case I was able to see what was going on and find the offending function. This was tested on Firebug in Firefox and it works as.

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• Forked-daapd with alternative soundcard

  - by Mah

  I am trying to configure forked-daapd on my computer, and everything goes well except that in configuration file I can not set a new value for the line corresponding to soundcard. This is the default code in the config file: #card = "default" I want to use a soundcard called "DG2", which is the soundcard no.1 and has a first device that ALSA recognizes as no.0. So, I change the line to the following: card = "hw:DG2,0" I restart the daapd service and the next time I play a file through iTune remote, I get a message in my server log file saying that it can not play the file because the device is busy. Any change in the device name will return a different error, saying that the device does not exist. I am pretty sure no other uses this external device, and I don't understand why I get this message. I have tried hwplug as well, with no result.

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• Wifi won't enter working net after hard reboot

  - by Terry Smith

  I rebooted the hard way after my system jammed again because FF eats all the ram. (that's a different problem) I've always gotten away with it, but not this time. The system came up ok BUT it absolutely refuses to log onto the local house wifi net. I know the net is ok as the Windows box I'm writing this on is on it right now. I deleted the connection and rentered the password but it will not go on. /var/lib/NetworkManager/NetworkManager.state says everything is turned on. I know this is my fault but I'd really like to get back on the net. The machine is a Toshiba Satellite. Any suggestions?

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• Resetting Your Oracle User Password with SQL Developer

  - by thatjeffsmith

  There’s nothing more annoying than having to email, call, or log a support ticket to have one of your accounts reset. This is no less annoying in the Oracle database. Those pesky security folks have determined that your password should only be valid for X days, and your time is up. Time to reset the password! Except…you can’t log into the database to reset your password. What now? Wait a second, look at this nifty thing I see in SQL Developer: Right click on my connection, reset password not available! Why not? The JDBC Driver Doesn’t Support This Operation We can’t make this call over the Oracle JDBC layer, because it hasn’t been implemented. However our primary interface, OCI, does indeed support this. In order to use the Oracle Call Interface (OCI), you need to have an Oracle Client on your machine. The good news is that this is fairly easy to get going. The Instant Client will do. You have two options, the full or ‘Lite’ Instant Clients. If you want SQL*Plus and the other client tools, go for the full. If you just want the basic drivers, go for the Lite. Either of these is fine, but mind the bit level and version of Oracle! Make sure you get a 32 bit Instant Client if you run 32 bit SQL Developer or 64 bit if you run 64 Here’s the download link What, you didn’t believe me? Mind the version of Oracle too! You want to be at the same level or higher of the database you’re working with. You can use a 11.2.0.3 client with 11.2.0.1 database but not a 10gR2 client with 11gR2 database. Clear as mud? Download and Extract Put it where you want – Program Files is as good as place as any if you have the rights. When you’re done, copy that directory path you extracted the archive to, because we’re going to add it to your Windows PATH environment variable. The easiest way to find this in Windows 7 is to open the Start dialog and type ‘path’. In Windows 8 you’ll cast your spell and wave at your screen until something happens. I recommend you put it up front so we find our DLLs first. Now with that set, let’s start up SQL Developer. Check the Connection Context menu again Bingo! What happened there? SQL Developer looks to see if it can find the OCI resources. Guess where it looks? That’s right, the PATH. If it finds what it’s looking for, and confirms the bit level is right, it will activate the Reset Password option. We have a Preference to ‘force’ an OCI/THICK connection that gives you a few other edge case features, but you do not need to enable this to activate the Reset Password. Not necessary, but won’t hurt anything either. There are a few actual benefits to using OCI powered connections, but that’s beyond the scope of today’s blog post…to be continued. Ok, so we’re ready to go. Now, where was I again? Oh yeah, my password has expired… Right click on your connection and now choose ‘Reset Password’ You’ll need to know your existing password and select a new one that meets your databases’s security standards. I Need Another Option, This Ain’t Working! If you have another account in the database, you can use the DBA Panel to reset a user’s password, or of course you can spark up a SQL*Plus session and issue the ALTER USER JEFF IDENTIFIED BY _________; command – but you knew this already, yes? I need more help ‘installing’ the Instant Client, help! There are lots and lots of resources out there on this subject. But I also know from personal experience that many of you have problems getting this to ‘work.’ The key things to remember is to download the right bit level AND make sure the client install directory is in your path. I know many folks that will just ‘install’ the Instant Client directly to one of their ‘bin’ type directories. You can do that if you want, but I prefer the cleaner method. Of course if you lack admin privs to change the PATH variable, that might be your only option. Or you could do what the original ORA- message indicated and ‘contact your DBA.’

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• Integrating PHPBB With DokuWiki

  - by Christofian

  I have a site with a phpbb forum. I'm working on adding a dokuwiki wiki to the site, and I would like to integrate the two. The phpbb forum is running phpbb 3.0.8, and the dokuwiki installation is running 2011-05-25a "Rincewind". Basically what I want is: for users to be able to log into the dokuwiki wiki with their phpbb account. Users should only be able to register from the phpbb registration interface. Cookie integration would be nice, but is not required. Is there any way to do this?

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• Suggestions on managing social media accounts

  - by Rob

  As a company we now have Facebook, LinkedIN, Twitter and now Google+, is there a way to easily manage all these accounts without having to log into them individually? Things like posting content to each one is becoming a full time job in itself, is there a way to post once that in turn posts to all other accounts? I used to use http://ping.fm/ a long time ago, has there been any advancements in something similar to this? With friend lists, news feeds etc etc for each one, I wish there was a way to manage them all in one place with a service/tool!

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• The Three Laws of Robotics; As Told by Asimov Himself

  - by Jason Fitzpatrick

  Many Sci-Fi fans and certainly most Isaac Asimov fans are familiar with the Three Laws of Robotics–but how many of us have heard the man himself explain them? In this archival clip a young Isaac Asimov explains the Three Laws of Robotics–the organizing principle behind his robot-based short stories and novels. [via Neatorama] 6 Start Menu Replacements for Windows 8 What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8

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• Remote Debug Windows Azure Cloud Service

  - by Shaun

  Originally posted on: http://geekswithblogs.net/shaunxu/archive/2013/11/02/remote-debug-windows-azure-cloud-service.aspxOn the 22nd of October Microsoft Announced the new Windows Azure SDK 2.2. It introduced a lot of cool features but one of it shocked most, which is the remote debug support for Windows Azure Cloud Service (a.k.a. WACS).   Live Debug is Nightmare for Cloud Application When we are developing against public cloud, debug might be the most difficult task, especially after the application had been deployed. In order to minimize the debug effort, Microsoft provided local emulator for cloud service and storage once the Windows Azure platform was announced. By using local emulator developers could be able run their application on local machine with almost the same behavior as running on Windows Azure, and that could be debug easily and quickly. But when we deployed our application to Azure, we have to use log, diagnostic monitor to debug, which is very low efficient. Visual Studio 2012 introduced a new feature named "anonymous remote debug" which allows any workstation under any user could be able to attach the remote process. This is less secure comparing the authenticated remote debug but much easier and simpler to use. Now in Windows Azure SDK 2.2, we could be able to attach our application from our local machine to Windows Azure, and it's very easy.   How to Use Remote Debugger First, let's create a new Windows Azure Cloud Project in Visual Studio and selected ASP.NET Web Role. Then create an ASP.NET WebForm application. Then right click on the cloud project and select "publish". In the publish dialog we need to make sure the application will be built in debug mode, since .NET assembly cannot be debugged in release mode. I enabled Remote Desktop as I will log into the virtual machine later in this post. It's NOT necessary for remote debug. And selected "advanced settings" tab, make sure we checked "Enable Remote Debugger for all roles". In WACS, a cloud service could be able to have one or more roles and each role could be able to have one or more instances. The remote debugger will be enabled for all roles and all instances if we checked. Currently there's no way for us to specify which role(s) and which instance(s) to enable. Finally click "publish" button. In the windows azure activity window in Visual Studio we can find some information about remote debugger. To attache remote process would be easy. Open the "server explorer" window in Visual Studio and expand "cloud services" node, find the cloud service, role and instance we had just published and wanted to debug, right click on the instance and select "attach debugger". Then after a while (it's based on how fast our Internet connect to Windows Azure Data Center) the Visual Studio will be switched to debug mode. Let's add a breakpoint in the default web page's form load function and refresh the page in browser to see what's happen. We can see that the our application was stopped at the breakpoint. The call stack, watch features are all available to use. Now let's hit F5 to continue the step, then back to the browser we will find the page was rendered successfully.   What Under the Hood Remote debugger is a WACS plugin. When we checked the "enable remote debugger" in the publish dialog, Visual Studio will add two cloud configuration settings in the CSCFG file. Since they were appended when deployment, we cannot find in our project's CSCFG file. But if we opened the publish package we could find as below. At the same time, Visual Studio will generate a certificate and included into the package for remote debugger. If we went to the azure management portal we will find there will a certificate under our application which was created, uploaded by remote debugger plugin. Since I enabled Remote Desktop there will be two certificates in the screenshot below. The other one is for remote debugger. When our application was deployed, windows azure system will open related ports for remote debugger. As below you can see there are two new ports opened on my application. Finally, in our WACS virtual machine, windows azure system will copy the remote debug component based on which version of Visual Studio we are using and start. Our application then can be debugged remotely through the visual studio remote debugger. Below is the task manager on the virtual machine of my WACS application.   Summary In this post I demonstrated one of the feature introduced in Windows Azure SDK 2.2, which is Remote Debugger. It allows us to attach our application from local machine to windows azure virtual machine once it had been deployed. Remote debugger is powerful and easy to use, but it brings more security risk. And since it's only available for debug build this means the performance will be worse than release build. Hence we should only use this feature for staging test and bug fix (publish our beta version to azure staging slot), rather than for production.   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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• USA keyboard layout keeps getting added on login

  - by Scott Severance

  I use the USA International keyboard layout. Every time I log in, the USA layout gets added to my list of layouts, which causes the keyboard layout indicator to be displayed. How can I stop the USA layout from being added? Additional info: I'm running Natty. Until recently, I had all four layout slots filled. Recently I changed from SCIM to iBus. With this change, I no longer need multiple layouts since iBus better handles my needs. So, I don't want both indicators (iBus and Keyboard layout) showing up.

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• Long pause in pxe/preseed install

  - by Bo Kersey

  I'm encountering a long pause during unattended (preseeded) install of precise server via pxe. The install eventually works, but appears to just sit there for 20 or 30 minutes after it authenticates the mirror. There is nothing in the logs during this time, even with full debug. Log excerpt: Aug 2 13:29:59 net-retriever: Signature made Fri Aug 2 06:05:28 2013 UTC using DSA key ID 437D05B5 Aug 2 13:29:59 net-retriever: gpgv: Aug 2 13:29:59 net-retriever: Good signature from "Ubuntu Archive Automatic Signing Key <[email protected]>" Aug 2 13:29:59 net-retriever: Aug 2 13:50:10 anna[5072]: DEBUG: resolver (ext2-modules): package doesn't exist (ignored) Aug 2 13:50:10 anna[5072]: DEBUG: resolver (efi-modules): package doesn't exist (ignored) Bug related to this problem that is not being worked. I'm surprised that no one else is complaining about this. Or, is there some other way to do an unattended install that everyone else is using?

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• logout when running firefox over ssh

  - by Jacques MALAPRADE

  this is very strange and has never happened before. When I ssh to a remote computer at my uni and try and run firefox (even with -no-remote etc.) it automatically logs me out of my local computer. When I log in again it automatically runs teamviewer ( suspicious!!! ). It also came up with a "network service discovery disabled" error similar to this post when logging back in: network service discovery disabled. I am running ubuntu 12.04 on a hp pavillion laptop. I would appreciate if someone can tell me what I am doing wrong....

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