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• Branching and Merging with TortoiseSVN

  - by capgpilk

  For this example I am using Visual Studio 2010, TortoiseSVN 1.6.6, Subversion 1.6.6 and AnkhSVN 2.1.7819.411, so if you are using different versions, some of these screen shots may differ. This is assuming you have your code checked in to the trunk directory and have a standard SVN structure of trunk, branches and tags. There are a number of developers who prefer to develop solely in a branch and never touch the trunk, but the process is generally the same and you may be on a small team and prefer to work in the trunk and branch occasionally. There are three steps to successful branching. First you branch, then when you are ready you need to reintegrate any changes that other developers may have made to the trunk in to your branch. Then finally when your branch and the trunk are in sync, you merge it back in to the trunk. Branch Right click project root in Windows Explorer > TortoiseSVN > Branch/Tag Enter the branch label in the ‘To URL’ box. For example /branches/1.1 Choose Head revision Check Switch working copy Click OK Make any changes to branch Make any changes to trunk Commit any changes For this example I copied the project to another location prior to branching and made changes to that using Notepad++. Then committed it to SVN, as this directory is mapped to the trunk, that is what gets updated.   Merge Trunk with Branch Right click project root in Windows Explorer > TortoiseSVN > Merge Choose ‘Merge a range of revisions’ In ‘URL to merge from’ choose your trunk Click Next, then the ‘test merge’ button. This will highlight any conflicts. Here we have one conflict we will need to resolve because we made a change and checked in to trunk earlier Click merge. Now we have the opportunity to edit that conflict This will open up TortoiseMerge which will allow us to resolve the issue. In this case I want both changes. Perform an Update then Commit Reloading in Visual Studio shows we have all changes that have been made to both trunk and branch. Merge Branch with Trunk Switch working copy by right clicking project root in Windows Explorer > TortoiseSVN > switch Switch to the trunk then ok Right click project root in Windows Explorer > TortoiseSVN > merge Choose ‘Reintegrate a branch’ In ‘From URL’ choose your branch then next Click ‘Test merge’, this shouldn’t show any conflicts Click Merge Perform Update then Commit Open project in Visual Studio, we now have all changes. So there we have it we are connected back to the trunk and have all the updates merged.

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• Enabling Code Coverage in Visual Studio 2010

  - by Anthony Trudeau

  You'll quickly find out that enabling code coverage in Visual Studio 2010 has changed.  With the new version you enable this functionality through the test settings.  The following steps will enable code coverage: Open the local.testsettings which you can access from Test -> Edit Test Settings -> Local (local.testsettings) Select Data and Diagnostics from the list Select the Enabled checkbox on the Code Coverage row Double-click the Code Coverage row Select the assemblies you want to instrument Specify a re-signing key file if your assemblies are strong-named Click OK Click Apply Click Close

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• AutoCad 2011 support available for AutoVue 20.0!

  - by warren.baird

  I'm happy to announce that support for AutoCad 2011 has been released for AutoVue 20.0. The support is available as a patch on My Oracle Support. To find the patch, visit https://support.oracle.com and click on the 'Patches & Updates' tab at the top of the screen. In the Patch Search area, enter patch # 9576064 and click search, then click on the patch # and click 'download'. Let us know how it works for you!

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• How to Modify a Signature for Use in Plain Text Emails in Outlook 2013

  - by Lori Kaufman

  If you’ve created a signature with an image, links, text formatting, or special characters, the signature will not look the same in plain text formatted emails as it does in HTML format. As the name suggests, Plain Text does not support any type of formatting. For example, if you include an image in your signature, as shown below, the plain text version will be blank. Active links in HTML signatures will be converted to just the text of the link in plain text emails. The How-To Geek link in the image below will become simply How-To Geek and will look like the rest of the text in the signature. The same thing is true in the following example. The active links are stripped from the text. The picture of the envelope that was inserted using the Wingdings font will only display as the plain text character associated with it. There are times you may need to send email in Plain Text format, but still include your signature. You can edit the plain text version of your signature to make it look good in plain text emails by manually editing the text file. To do this, click the File tab. Click Options in the menu list on the left side of the Account Information screen. On the Outlook Options dialog box, click Mail in the list of options on the left side of the dialog box. In the Compose messages section, press and hold the Ctrl key and click the Signatures button. This opens the Signatures folder containing the files used to insert signatures into emails. The .txt file version of each signature is used when inserting a signature into a plain text email. Double-click on a .txt file for the signature you want to edit to open it in Notepad, or your default text editor. Notice that the links on “How-To Geek” and “Email me” are gone and the envelope typed using the Wingdings font was converted to an “H.” Edit the text file to remove extra characters, replace images, and provide full web and email links. Save the text file. Create a new mail message and select the edited signature, if it’s not the default signature for the current email account. To convert the email to plain text, click the Format Text tab and click Plain Text in the Format section. The Microsoft Outlook Compatibility Checker displays telling you that Formatted text will become plain text. Click Continue. The HTML version of your signature is converted to the plain text version. NOTE: You should make a backup of the .txt signature file you edited, as this file will change again when you change your signature in the Signature Editor.     

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• How to remove one or all auto-complete text entries in Chrome? [closed]

  - by Kayle

  Possible Duplicate: Remove auto-complete field entries in Google Chrome Ok... so this is embarrassing. I typed in "boobs" on EncyclopediaDramatica's search because, well, it's a really funny page. But now I've got a problem... EVERY TIME I click a search feild in Chrome now, it shows "boobs" as the first suggestion in the drop down! This is not really socially acceptable as this laptop goes with me everywhere and Chrome is my primary browser. Is there a way I can isolate and remove just that one entry?

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• How do I install Flash for just one browser on Mac?

  - by ridogi

  How can I install Flash for just Firefox and not Safari? I would like to have Flash not load at all, so the Click to Flash extension is not good enough. I've looked at the Safari plist and don't see any way to disable it. Alternatively, updating the Flash plugin that is built into Chrome would solve this. I used to use Chrome for my flash only browsing, but Google is not updating the embedded flash player. I found the way to force Chrome to ignore it's built in plugin in this Adobe KB article, but then Chrome just uses the plugin installed for the system.

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• How to set file associations and explorer options in one go?

  - by jokoon

  This has been itching me for quite a long time. When I come on a new computer with any version of Windows, I need to: un-hide file extensions set explorer default view to list instead of icons set the file extensions like h c cpp so they don't open Visual C++ (which can take up to 20 seconds!) each time I double click on them, opening them with something like Notepad++ instead. Isn't there some program to quickly set thoses options to something I want, like some standalone exe, or some generic registry file I can execute when I come on a new machine? I'm a developer and I can't believe I'm wasting so much time on those &*$%@# things.

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• How to apply a folder template to more than one selected folder in Vista?

  - by Albic

  I would like to apply a folder template to a number of folders. I selected the folders, opened the properties, selected the folder template (e. g. Music Details) and clicked OK. When I checked the folders I noticed that the template was only applied to the folder I performed the right click to open the properties on. The other folders remained untouched. I can't apply the template to the parent folder and use the "Also apply this template to all subfolders" option because the template should only be applied to specific folders and not all. Going over each folder in not an option because it's a large amount of folders. Is it possible to apply a folder template to more than one selected folder at a time?

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• Is it possible to lightbox many images but only show one image to activate them?

  - by Obay

  Hi, I'm using Lightbox to display photos. So If I have two categories of photos, "work" and "vacation", I would do... <a href="images/image-1.jpg" rel="lightbox[work]">image #1</a> <a href="images/image-2.jpg" rel="lightbox[work]">image #2</a> <a href="images/image-3.jpg" rel="lightbox[work]">image #3</a> <a href="images/image-4.jpg" rel="lightbox[vacation]">image #4</a> <a href="images/image-5.jpg" rel="lightbox[vacation]">image #5</a> <a href="images/image-6.jpg" rel="lightbox[vacation]">image #6</a> This displays 6 images, and when I click one of them, it starts the Lightbox. However, I'd like to be able to display only two images initially (one for 'work', one for 'vacation'), but when one of them is clicked, it behaves like the first example, e.g. display all photos in that category through Lightbox. Is this possible? If so, how? Any help is very much appreciated! :) Thanks

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• Regex query: how can I search PDFs for a phrase where words in that phrase appear on more than one l

  - by Alison

  I am trying to set up an index page for the weekly magazine I work on. It is to show readers the names of companies mentioned in that weeks' issue, plus the page numbers they are appear on. I want to search all the PDF files for the week, where one PDF = one magazine page (originally made in Adobe InDesign CS3 and Adobe InCopy CS3). I have set up a list of companies I want to search for and, using PowerGREP and using delimited regular expressions, I am able to find most page numbers where a company is mentioned. However, where a company name contains two or more words, the search I am running will not pick up instances where the name appears over more than one line. For example, when looking for "CB Richard Ellis" and "Cushman & Wakefield", I got no result when the text appeared like this: DTZ beat BNP PRE, CB [line break here] Richard Ellis and Cushman & [line break here] Wakefield to secure the contract. [line end here] Could someone advise me on how to write a regular expression that will ignore white space between words and ignore line endings OR one that will look for the words including all types of white space (ie uneven spaces between words; spaces at the end of lines or line endings; and tabs (I am guessing that this info is imbedded somehow in PDF files). Here is a sample of the set of terms I have asked PowerGREP to search for: \bCB Richard Ellis\b \bCB Richard Ellis Hotels\b \bCentaur Services\b \bChapman Herbert\b \bCharities Property Fund\b \bChetwoods Architects\b \bChurch Commissioners\b \bClive Emson\b \bClothworkers’ Company\b \bColliers CRE\b \bCombined English Stores Group\b \bCommercial Estates Group\b \bConnells\b \bCooke & Powell\b \bCordea Savills\b \bCrown Estate\b \bCushman & Wakefield\b \bCWM Retail Property Advisors\b [Note that there is a delimited hard return between each \b at the end of each phrase and beginnong of the next phrase.] By the way, I am a production journalist and not usually involved in finding IT-type solutions and am finding it difficult to get to grips with the technical language on the PowerGREP site. Thanks for assistance Alison

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• Can Django admin handle a one-to-many relationship via related_name?

  - by Mat

  The Django admin happily supports many-to-one and many-to-many relationships through an HTML <SELECT> form field, allowing selection of one or many options respectively. There's even a nice Javascript filter_horizontal widget to help. I'm trying to do the same from the one-to-many side through related_name. I don't see how it's much different from many-to-many as far as displaying it in the form is concerned, I just need a multi-select SELECT list. But I cannot simply add the related_name value to my ModelAdmin-derived field list. Does Django support one-to-many fields in this way? My Django model something like this (contrived to simplify the example): class Person(models.Model): ... manager = models.ForeignKey('self', related_name='staff', null=True, blank=True, ) From the Person admin page, I can easily get a <SELECT> list showing all possible staff to choose this person's manager from. I also want to display a multiple-selection <SELECT> list of all the manager's staff. I don't want to use inlines, as I don't want to edit the subordinates details; I do want to be able to add/remove people from the list. (I'm trying to use django-ajax-selects to replace the SELECT widget, but that's by-the-by.)

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• How to combine twill and python into one code that could be run on "Google App Engine"?

  - by brilliant

  Hello everybody!!! I have installed twill on my computer (having previously installed Python 2.5) and have been using it recently. Python is installed on disk C on my computer: C:\Python25 And the twill folder (“twill-0.9”) is located here: E:\tmp\twill-0.9 Here is a code that I’ve been using in twill: go “some website’s sign-in page URL” formvalue 2 userid “my login” formvalue 2 pass “my password” submit go “URL of some other page from that website” save_html result.txt This code helps me to log in to one website, in which I have an account, record the HTML code of some other page of that website (that I can access only after logging in), and store it in a file named “result.txt” (of course, before using this code I firstly need to replace “my login” with my real login, “my password” with my real password, “some website’s sign-in page URL” and “URL of some other page from that website” with real URLs of that website, and number 2 with the number of the form on that website that is used as a sign-in form on that website’s log-in page) This code I store in “test.twill” file that is located in my “twill-0.9” folder: E:\tmp\twill-0.9\test.twill I run this file from my command prompt: python twill-sh test.twill Now, I also have installed “Google App Engine SDK” from “Google App Engine” and have also been using it for awhile. For example, I’ve been using this code: import hashlib m = hashlib.md5() m.update("Nobody inspects") m.update(" the spammish repetition ") print m.hexdigest() This code helps me transform the phrase “Nobody inspects the spammish repetition” into md5 digest. Now, how can I put these two pieces of code together into one python script that I could run on “Google App Engine”? Let’s say, I want my code to log in to a website from “Google App Engine”, go to another page on that website, record its HTML code (that’s what my twill code does) and than transform this HTML code into its md5 digest (that’s what my second code does). So, how can I combine those two codes into one python code? I guess, it should be done somehow by importing twill, but how can it be done? Can a python code - the one that is being run by “Google App Engine” - import twill from somewhere on the internet? Or, perhaps, twill is already installed on “Google App Engine”?

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• NHibernate AssertException: Interceptor.OnPrepareStatement(SqlString) returned null or empty SqlString.

  - by jwynveen

  I am trying to switch a table from being a many-to-one mapping to being many-to-many with an intermediate mapping table. However, when I switched it over and tried to do a query on it with NHibernate, it's giving me this error: "Interceptor.OnPrepareStatement(SqlString) returned null or empty SqlString." My query was originally something more complex, but I switched it to a basic fetch all and I'm still having the problem: Session.QueryOver<T>().Future(); It would seem to either be a problem in my model mapping files or something in my database. Here are my model mappings: <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="GBI.Core" namespace="GBI.Core.Models"> <class name="Market" table="gbi_Market"> <id name="Id" column="MarketId"> <generator class="identity" /> </id> <property name="Name" /> <property name="Url" /> <property name="Description" type="StringClob" /> <property name="Rating" /> <property name="RatingComment" /> <property name="RatingCommentedOn" /> <many-to-one name="RatingCommentedBy" column="RatingCommentedBy" lazy="proxy"></many-to-one> <property name="ImageFilename" /> <property name="CreatedOn" /> <property name="ModifiedOn" /> <property name="IsDeleted" /> <many-to-one name="CreatedBy" column="CreatedBy" lazy="proxy"></many-to-one> <many-to-one name="ModifiedBy" column="ModifiedBy" lazy="proxy"></many-to-one> <set name="Content" where="IsDeleted=0 and ParentContentId is NULL" order-by="Ordering asc, CreatedOn asc, Name asc" lazy="extra"> <key column="MarketId" /> <one-to-many class="MarketContent" /> </set> <set name="FastFacts" where="IsDeleted=0" order-by="Ordering asc, CreatedOn asc, Name asc" lazy="extra"> <key column="MarketId" /> <one-to-many class="MarketFastFact" /> </set> <set name="NewsItems" table="gbi_NewsItem_Market_Map" lazy="true"> <key column="MarketId" /> <many-to-many class="NewsItem" fetch="join" column="NewsItemId" where="IsDeleted=0"/> </set> <!--<set name="MarketUpdates" table="gbi_Market_MarketUpdate_Map" lazy="extra"> <key column="MarketId" /> <many-to-many class="MarketUpdate" fetch="join" column="MarketUpdateId" where="IsDeleted=0" order-by="CreatedOn desc" /> </set>--> <set name="Documents" table="gbi_Market_Document_Map" lazy="true"> <key column="MarketId" /> <many-to-many class="Document" fetch="join" column="DocumentId" where="IsDeleted=0"/> </set> </class> <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="GBI.Core" namespace="GBI.Core.Models"> <class name="MarketUpdate" table="gbi_MarketUpdate"> <id name="Id" column="MarketUpdateId"> <generator class="identity" /> </id> <property name="Description" /> <property name="CreatedOn" /> <property name="ModifiedOn" /> <property name="IsDeleted" /> <!--<many-to-one name="Market" column="MarketId" lazy="proxy"></many-to-one>--> <set name="Comments" where="IsDeleted=0" order-by="CreatedOn desc" lazy="extra"> <key column="MarketUpdateId" /> <one-to-many class="MarketUpdateComment" /> </set> <many-to-one name="CreatedBy" column="CreatedBy" lazy="proxy"></many-to-one> <many-to-one name="ModifiedBy" column="ModifiedBy" lazy="proxy"></many-to-one> </class> <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="GBI.Core" namespace="GBI.Core.Models"> <class name="MarketUpdateMarketMap" table="gbi_Market_MarketUpdate_Map"> <id name="Id" column="MarketUpdateMarketMapId"> <generator class="identity" /> </id> <property name="CreatedOn" /> <property name="ModifiedOn" /> <property name="IsDeleted" /> <many-to-one name="CreatedBy" column="CreatedBy" lazy="proxy"></many-to-one> <many-to-one name="ModifiedBy" column="ModifiedBy" lazy="proxy"></many-to-one> <many-to-one name="MarketUpdate" column="MarketUpdateId" lazy="proxy"></many-to-one> <many-to-one name="Market" column="MarketId" lazy="proxy"></many-to-one> </class> As I mentioned, MarketUpdate was originally a many-to-one with Market (MarketId column is still in there, but I'm ignoring it. Could this be a problem?). But I've added in the Market_MarketUpdate_Map table to make it a many-to-many. I'm running in circles trying to figure out what this could be. I couldn't find any reference to this error when searching. And it doesn't provide much detail. Using: NHibernate 2.2 .NET 4.0 SQL Server 2005

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• Should I have one dll or multiple for Business Logic?

  - by Brian

  In my situation, my company services many types of customers. Almost every customer requires their own Business Logic. Of course, there will be a base layer that all business logic should inherit from. However, I'm going back and forth on architecting this--either in one dll for all customers or one dll for each. My biggest point of contention deals with upgrading the software. We have about 12 data entry personnel that work with 20 companies and it's critical that they have little down time. My concern is that if I deploy everything in one dll, I could introduce a bug in company A's logic while only intending to update Company B's logic. I believe I could reduce the risk if each company's logic had their own dll, so then, I could deploy Company B's update w/o harming Company A's. -- I will be the only one supporting this. That said, this also seems like a nightmare to manage 20 different .dll's -- that's for the BLL alone. I also need to create a View layer and ViewModel layer. So, potentially, I could have 20 (companies) * 3 (layers) which would equate to 60 .dll's. Thank You.

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• Which one gives you more advantages: Microsoft or SUN/Oracle certification?

  - by edwin.nathaniel

  Which one gives you more advantages: Microsoft or SUN/Oracle certification? If you don't mind, please relate your answer to your career (dev, sys-admin, dba), industry (finance, general consulting, business apps, software house), and location (where you live, does it influence your decision?) as well. One reason I asked this because I heard that having MCP (in C#, MCSAD or whatever the cert is called these days) could give you extra point from the employer perspective if they're a Microsoft Partner. I don't quite understand why and am also wondering if SUN/Oracle certificate holder have similar edge/benefit. I'm also interested to know if Certification plays role where you live. For example: certification could be a big negative sign in Silicon Valley, but might be helpful if you're in other US/Canada cities or outside USA/Canada. If you are an independent software consultant, do these certification helps you win bids? I totally understand that this question might be subjective and could be "closed". But it doesn't hurt to ask I suppose. I also understand that there are people who dislike/disagree (or have negative perspective on technology certification). While there are people who have the opinion that "these are not the kind of employers you would want to work with", I respect you guys, but sometime a pure software product company might not exist in certain cities in the world. And if certification can help one's career somewhere else, I guess that means more opportunities right? I've had experienced in both platforms: (short) .NET and (not too long) Java (minus Oracle DB stuff), but I think it's about time I have to pick one of them and be good at. Where I live right now might also dictates my career albeit insignificant. Anyhow, this last paragraph is just tiny blurb. Thanks!

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• Force dual-mono audio (L+L or R+R) in Youtube video playback for one-channel audio movies

  - by jakub.g

  Occasionally, I find Youtube videos that have only one audio channel (only left or only right); example video (left channel only). This is quite annoying, especially with headphones on, as I hear sound in one ear, and no sound in the other. So, I want to be able to easily force dual mono (Left+Left or Right+Right) when I find that kind of video, and switch to normal stereo after I finish watching it. I have my headphones plugged well / I don't create audio/video - I want it for real-time playback only, In Windows audio config, setting balance 100% to Left / Right doesn't help (I have either still only left when moved to left, and no sound at all when moved to right), I've checked all the configurations in Control Panel > Sounds and Audio Devices > Audio > Sound Playback > Advanced like suggested in this post, in conjunction with moving balance left/right, and it doesn't seem to have any impact on actual sound I hear in headphones, No need to mix L with R, I just want L+L or R+R, I prefer software solutions to buying a stereo-to-mono adapter, Free solutions please, no $$$ ones, neither trials etc., In Control Panel > Realtek HD Sound Effect Manager I can turn on various mumbo-jumbo effects like: Concert Hall / Hangar / Bathroom / whatever environment (and in fact it makes the sound appear in two ears, but well, it's ridiculous to do this;), but there is no Dual Mono option. Finally, I know I can force L+L or R+R in VLC Player which supports Youtube (well, a little hack is needed, because Youtube internals change from time to time) but it is not very convenient to launch VLC just to play Youtube video - I want to keep it in the browser, I use Firefox generally (but well, if I don't find easier way, I will launch it in VLC).

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• apache pointing to the wrong version of python on ubuntu how do I change?

  - by one

  I am setting up a flask application on and Ubuntu 12.04.3 LTS EC2 instance and everything seemed to be working well (i.e. I could get to the webpage via the publicly available url) until I tried to import a module (e.g. numpy) and realised the apache python differs from the one I used to compile the mod_wsgi and also the one I am using I am running apache2. The apache2 logs show the warnings (specifically the last line shows the path hasnt changed): [warn] mod_wsgi: Compiled for Python/2.7.5. [warn] mod_wsgi: Runtime using Python/2.7.3. [warn] mod_wsgi: Python module path '/usr/lib/python2.7/:/usr/lib/python2.7/plat-linux2:/usr/lib/python2.7/lib-tk:/usr/lib$ I have tried to set the path in my virtual host conf (my python is located in /home/ubuntu/anaconda/bin along with all of the other libraries): WSGIPythonHome /home/ubuntu/anaconda WSGIPythonPath /home/ubuntu/anaconda <VirtualHost *:80> ServerName xx-xx-xxx-xxx-xxx.compute-1.amazonaws.com ServerAdmin [email protected] WSGIScriptAlias / /var/www/microblog/microblog.wsgi <Directory /var/www/microblog/app/> Order allow,deny Allow from all </Directory> Alias /static /var/www/microblog/app/static <Directory /var/www/FlaskApp/FlaskApp/static/> Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> But I still get the warnings and the apache python path hasnt changed - where do I need to put the relevant directives to point apache at my python version and modules (e.g. scipy, numpy etc)? Separately, could I have avoided this using virtual environments? Thanks in advance.

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• Ripping CD Audio simultaneously from 2 drives on one PC via USB or PATA - rip accuracy preserved?

  - by Rob

  I'm considering ripping audio (reading audio) from CDs using 2 drives simultaneously to speed up the process of ripping the CDs - i.e. 2 at a time rather than 1. Are there any issues with achieving maximum rip accuracy? In general I wondered if people have tried this and if the simultaneous streams from both rip activities would overload the host machine and cause packet loss or read retries resulting in a sub-standard CD-DA Audio CD rip? If it just means the rip is slightly slower (but still faster than sequentially doing one rip followed by another) but still of maximum accuracy then that is OK for me. I will be using dbPowerAmp to rip the CDs and converting to FLAC lossless format. Specific examples: There are 2 machines I intend to do it on: A Toshiba NB100 1.6Ghz Atom netbook, 2Gb RAM, running Windows XP Home with 1 external LG DVD/CD burner and external 1 LG Blu-ray burner attached via USB 2.0, ripping to the machine's 5400rpm internal hard drive. This rips from one CD drive very well, more than adequate, it is a nippy, fast little machine for its specification. A Desktop PC running Windows 7 Home Premium with MSI P4M900M2-L/ MS-7255v2.0 motherboard and 1.86Ghz Intel Core 2 Duo E6320, 7200rpm hard drive and 2Gb RAM, with an internal LG PATA DVD/CD burner (master) and a Philips DVD/CD burner (slave) on the same PATA bus (perhaps separate buses would be another option to consider here). Thoughts?

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• Why does `rpm` show 3 httpd packages, and which one provides the real httpd?

  - by Stefan Lasiewski

  I ran yum update on my CentOS5 webserver a few days ago. Today I just noticed that I have 3 httpd-* rpms! How can I end up with three RPMs for httpd (My other servers only have one httpd rpm). I want to make sure that my server has a patched, updated version of /usr/sbin/httpd. How can I tell which one of these packages provides the httpd binary at /usr/sbin/httpd? [root@node1 ~]# rpm -q httpd httpd-2.2.3-76.el5.centos httpd-2.2.3-78.el5.centos httpd-2.2.3-83.el5.centos [root@node1 ~]# /usr/sbin/httpd -V |grep version Server version: Apache/2.2.3 [root@node1 ~]# rpm -q httpd-2.2.3-76.el5.centos --list |grep -w /usr/sbin/httpd /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker [root@node1 ~]# rpm -q httpd-2.2.3-78.el5.centos --list |grep -w /usr/sbin/httpd /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker [root@node1 ~]# rpm -q httpd-2.2.3-83.el5.centos --list |grep -w /usr/sbin/httpd /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker [root@node1 ~]# root@node1 ~]# rpm -q --provides httpd |grep -w httpd config(httpd) = 2.2.3-76.el5.centos httpd-mmn = 20051115 httpd = 2.2.3-76.el5.centos config(httpd) = 2.2.3-78.el5.centos httpd-mmn = 20051115 httpd = 2.2.3-78.el5.centos config(httpd) = 2.2.3-83.el5.centos httpd-mmn = 20051115 httpd = 2.2.3-83.el5.centos Update: Answering Mark Wagner's questions: [root@node1 ~]# rpm -q -f /usr/sbin/httpd httpd-2.2.3-76.el5.centos httpd-2.2.3-78.el5.centos httpd-2.2.3-83.el5.centos [root@node1 ~]# rpm -V httpd-2.2.3-83.el5.centos S.5..... c /etc/logrotate.d/httpd S.5..... c /etc/rc.d/init.d/httpd ....L... /var/www

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• Is 30 calls / second a lot for one IIS server?

  - by Lieven Cardoen

  We have a RIA application that 300 clients concurrently use in an intranet environment. Together they make 30 calls / second to IIS (asp.net) (actually it's 60 but calls are loadbalanced over two IIS servers). Half of the calls is getting an asset (Caching Profile is used so most of the time cache is hit), the other half is saving data to a sql server. Retrieving an asset is done with a aspx page. Saving the data happens via WebORB, asp.net and Sql Server. So some processing is needed by WebORB (amf decoding, GZIP, ...). We also use Spring.NET, and some of the container objects have a request scope (not a lot). IIS servers -- Virtual machines, 4 CPU, 2 gb RAM. They are based on Windows 2008 x64 SP2 Enterprise Edition. Sql Server 2008 is used. Apparently CPU of both IIS serers is constantly around 60-70%. Now, my question, is the load of 60-70% acceptable and how could we possible bring that down to less % (maybe using only one IIS server)? + Is 2 gb RAM enough? Assets can be up to 20mb, but on average, they are about 30kb. (the load of 60-70% is achieved with assets around 30kb). The data that gets saved with weborb is very small (2kb) and is just one object.

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• Can one really fry a monitor by setting the wrong HorizSync and VertRefresh?

  - by rumtscho

  I've encountered this problem on several different systems with several different monitors: a monitor functions perfectly under Windows. I install a Linux and the max resolution is at some impossibly low value, mostly 640x480, changing it in Xorg.conf doesn't work. The X.org log file then shows that the driver cannot determine the correct refresh rate for the monitor, so it ignores everything in Xorg.conf and just loads in some default minimalistic mode. Googling the problem leads to an easy solution: set the HorizSync and VertRefresh in Xorg.conf, and everything works. The problem seems to be a common one, and I've seen dozens of results recommending the solution. Each of them contains the warning that you should use the value ranges provided with the monitor. Because if you don't, and your video card sends a signal with the wrong refresh rate, this can damage your monitor. Of course, you don't have a user manual for your monitor any more. If you are lucky to find one on the attic or on the net, it doesn't contain any information about the supported refresh rate. So you just type in the value suggested in the solution description, which varies wildly depending on your source, and cross your fingers. You restart, and... ... you've set the wrong values. So the monitor shows a short message like "input signal out of range", and you do a hard restart, repair your Xorg.conf in recovery mode, and everything is fine, including your monitor. So does this warning reflect a real possibility, or is it just a geeky urban legend? Or is it something which used to happen in the past, before manufacturers started protecting the monitors against it? Is it technically possible with every monitor technology, or is it maybe something which can only happen to a CRT? If you think that it's true, why? Have you ever witnessed a monitor die from the wrong refresh config, or have you read of it in a reputable source?

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• Tell postfix to merge three Authentication-Results:-Lines into one?

  - by Peter

  I am running a postfix mta with debian wheezy. I am using postfix-policyd-spf-python, openkdim and opendmarc. When receiving e-mails from google (google apps with own domain) for example, the header looks like this: [...] Authentication-Results: mail.xx.de; dkim=pass reason="1024-bit key; insecure key" header.d=yyy.com [email protected] header.b=OswLe0N+; dkim-adsp=pass; dkim-atps=neutral<br> [...] Authentication-Results: mail.xx.de; spf=pass (sender SPF authorized) smtp.mailfrom=yyy.com (client-ip=2a00:1450:400c:c00::242; helo=mail-wg0-x242.google.com; [email protected]; [email protected]) [...] Authentication-Results: mail.xx.de; dmarc=pass header.from=yyy.com<br> [...] This means any of these programs creates it's own Authentication-Results:-Line. Is it possible to tell postfix to merge this into one single Authentication-Results:-Line? When I send an e-mail to google, it says: [...] Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates xxx.xxx.xxx.xxx as permitted sender) [email protected]; dkim=pass [email protected]; dmarc=pass (p=NONE dis=NONE) header.from=xxx.com [...] And this is exactly what I want. Just one Authentication-Results-Header. How can I do this? Thanks. Regards, Peter

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• How should I configure my Active Directory servers so that if one goes down, users are not kicked off SQL?

  - by Matty Brown

  Today, we shut down one of our Active Directory servers during office hours to check the loading on a UPS. Since all the server did was provide Active Directory in a separate building incase the main building caught fire, or whatever, we didn't think it would have any effect on our users. Seconds after the server was shut down, we had a dozen phone calls from users experiencing this issue:- [Microsoft SQL Server Login] SQLState: '28000' [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed. The login is from an untrusted domain and cannot be used with authentication. Once we realized what had happened, we quickly rebooted the down Active Directory server. Problem solved. But why did this happen. And what if one day a server has a breakdown and is offline for hours, or days? Shouldn't the other Active Directory servers in the domain service authentication requests without disruption to users? We have 3 Windows Server 2003 Standard servers running Active Directory as Domain Controllers with Global Catalogs, all physically located on the same network at Gigabit speeds. I believe the domain was originally Windows Server 2000, or maybe even NT 4.0. Could the issue be to down to old Group Policies inherited from these old server OS's, or some default setting in Active Directory that needs changing?

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• Mac OS X duplex printing problem: one- vs. multi-paged documents

  - by Christian Lindig

  I like to print on pre-printed stationery using the Preview.app and a duplex-capable HP Color Laserjet 4700 (PostScript) printer. The print dialog handles one and two-paged documents differently: the paper needs to be placed differently into the tray if the document contains one page versus when it contains two pages. This is not obvious when printing on plain paper but becomes obvious when front and reverse side of sheets are marked. Otherwise the first page would end up on the reverse side of the first sheet. I believe the problem is caused by the printer driver setting duplex printing to false (using the PostScript setpagedevice operator) when emitting a single-page document versus keeping it set to true when emitting multi-page documents. All this despite that duplex printing is always specified in the printer dialog. When printing a single-sided document, duplex=true and duplex=false seem to make a difference with respect which side of a sheet gets printed on. It would be also helpful if others could confirm the problem actually exists. I suspect this problem is not limited to specific printers. I'm on OS X 10.6 and I checked two different HP printers.

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• How to make Virtualbox, OpenVPN, and Win2008 Web R2 like one another?

  - by Aquitaine

  Back with web developer guy wearing net admin hat. Hopefully this is an easy one. We have two servers on a public network at a hosted facility. Server A is our public-facing web server and server B is our database server. Both are running Windows 2008 Server R2 Web Edition. We want Server B isolated from everything except Server A, such that anyone who has to connect to server B goes through the VPN on Server A. It's not perfect since we have no access to do this on the router side, but it's what we've got. We've set up VirtualBox and OpenVPN Access Server on Server A. It has one network interface set to 'NAT' mode, such that OpenVPN gets its IP at 10.0.2.x, and to connect to the OpenVPN interface, I go to the local IP for the Virtualbox network adapter, 192.168.56.x, which works as I configured the appropriate ports using VBoxManage. My question is, do I need to be using Bridged Networking and give the VPN server its own IP, or is there some way to tell the server (either Windows or the Virtualbox OpenVPN) that 'any public connection on the real external IP on port X should be directed to this internal LAN address of 192.168.1.x on port Y'? OpenVPN itself doesn't seem to be aware of the server's real external IP unless we put it in Bridged networking mode; is that necessary or advisable? We're without RRAS since this is Web edition, but I feel like what we're going for is pretty simple. Thanks! Aq

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