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• Concurrent NFS access

  - by Kristian

  Similar to Concurrent FTP access. How is concurrent file access handled for NFS? Say that one client is updating/overwriting a file on a NFS server, and a process on the server is reading that same file directly from the file system at the same time. Is there some sort of atomic handling of file read/write in NFS/Linux or do I have to work with tmp files to ensure data consistency? I'm worried that the process reading the file will get corrupt data.

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• Windows Vista - overlay icon with two people

  - by abcdefghijkl

  I had to save data from my harddisk to an external drive (with linux) and after reinstalling Windows Vista (and copying the files back) there is a strange overlay icon with two people. How do I get rid of this ? First I thought it could be shared, but the files are not shared. The user is the owner of all those files and they are accesible to everyone. Any ideas what Vista would like to say to me with these icons and how I get rid of them ?

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• How can I check in bash if a shell is running in interactive mode?

  - by Checkers

  How can I tell (in ~/.bashrc) if I'm running in interactive mode, or, say, executing a command over ssh. I want to avoid printing of ANSI escape sequences in .bashrc if it's the latter.

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• i have a priv1.edb file that is growing about 1MB every 10 seconds in sbs 2003

  - by dasko

  is there a way that i can trace what is causing the issue, i had some user say he tried to send a very large attachment and thinks it may be related? any help would be appreciated as they are currently approaching the 18GB limit on the sbs 2003 sp2. thanks.

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• NGinx Domain name redirects

  - by Srikar

  Lets say I have a website named xyz.co, I also have other domain names with the same prefix like xyz.com, xyz.it, xyz.co.it Right now nginx works fine with server_name xyz.co in nginx.conf in port 80 I would want all the other domains to redirect to xyz.co also I would want www.* versions of the above to redirect to xyz.co. How can I get this? Is this nginx webserver level changes? or I need to make this changes in DNS?

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• Long-term backup storage media

  - by Dimitri C.

  Rumors say CDs and DVDs won't remember your data longer than ten years. Are there backup media that do better?

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• Can i install wamp and xampp on same computer?

  - by mysqllearner

  Currently I am using wamp 2.X, and been using it for 1 year. Recently I found this XAMPP, and it looks pretty good (well, I could say AWESOME), can I install XAMPP and WAMP on same computer? Will it crash or conflict each other? I already back up my wamp files, but I just dont want to waste my time to install and uninstall and install again. Thats why I am asking this question here.

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• How can I create real-time audio effects on PC?

  - by anto8421

  Does anyone know how I can create an echo effect in real-time while singing on PC. Lets say I want to sing to an audience over IM and I want an echo/delay effect while I sing. Is there any software available?

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• Location of lock screen

  - by ICTdesk.net

  Does anybody know if it is possible to change a setting so that the Windows XP Lock Screen is not centered, but let's say in right or left top/down corner or maybe even a give x or y coordinate?

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• SQL Server 2000 -- Log Shipping reliability?

  - by Chris J

  I've been asked to look into log shipping for SQL Server 2000 (yes, 2000): something in my memory tells me that I looked at this years ago and there were question marks over it's reliability. I'm trying to google stuff, but given the age of 2000 now I've put pulled up anything to confirm this -- most seem to say they're using it without problem, so just want confirm whether I'm just being delusional, or whether there were problems, but with a fully patched SP4 box these don't exist any more. Cheers!

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• Can I set up a raid array where I have multiple small drives that back up to one large drive?

  - by kryos1

  I want to know if I can set up a raid of like 150 gb velociraptors for performance and then make it to where they automatically back up to a larger say 2tb western digital caviar black drive? let me know if this is possible and what drives I should get and what raid controller I should buy!

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• How do I enable JPEG Support for PHP?

  - by ngache

  My Configure Command doesn't say anything about jpg, nor gif/png, but I can see gif/png support in the output of phpinfo(). I built PHP with --with-gd, but only GIF Support and PNG Support are in the output of phpinfo(), how do I enable JPEG Support?

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• how to download ssl certificate from a website?

  - by RainDoctor

  I want to download the ssl certificate from, say https://www.google.com, using wget or any other commands. Any unix command line? wget or openssl?

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• How do I increase copy/paste buffer size in Linux

  - by Thrawn

  Hi all, I'm trying to copy and paste lines of code to the linux terminal. However, I've noticed that when the copied text is too long (let's say, 60 or more lines), it gets trimmed and altered in an apparently random way (e.g. some characters missing). I found the same problem in Ubuntu Karmic Koala, Fedora 10 and Ubuntu Jaunty Jackalope. Any clue why this happens and if I can increase the size of safely copy/pasteable text? Thanks!

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• How to select camera by index when running VLC from cmd?

  - by Ole Jak

  When I start VLC from cmd how\is it possible to select a camera for directshow source by index (for example i have camera "A" and camera "B" so i would say 0 for "A" and 1 for "B") i do not know device name and i do not know camera name - only its index (0, 1...)?

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• Is there a compression method for compressing a group of very similar files, without archiving them?

  - by awiebe

  I want to compress a large nuber of files that have near identical headers, and also some data, however I do not wish to archive them, nor do I wish to zip them individually(because the copression ratio would be much higher if substitutions of similar blocks could be done using a single table). Does a compression method exist to do this already, or should I implement it myself. Note: Don't say "Disk space is cheap", because I may want to use this on an embedded system.

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• working on ubuntu from windows

  - by doug

  hi there first , i have to say that i have no experience in working with ubuntu or any other unix like distributions. I have two computers and I wish to have the following setup and working scenario. In one computer i need to have ubuntu and to connect to it from a windows station using my lan. Can anyone recommend me a tutorial (link, video, anything)? TY

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• Command history in zsh

  - by Art

  Currently I have zsh set up in such a way that command history is shared between all sessions immediately. Say I have a terminal emulator open with two tabs, each with a zsh session, A1 and A2. If I enter ls -la in A1, and then go to A2 and press up arrow key, I will see ls -la in the command prompt. I would like to change it so sessions don't share the command history with each other although when you start new session it gets all the previous history from all sessions before it.

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• Question about RewriteRule and HTTP_HOST server variable

  - by SeancoJr

  In evaluating a rewrite rule that redirects to a specific URL and say the rewrite condition is met, would it be possible to use HTTP_HOST as part of the URL to be redirected to? Example in question: RewriteRule .*\.(jpg|jpe?g|gif|png|bmp)$ http://%{HTTP_HOST}/no-leech.jpg [R,NC] The motive behind this question is a desire to create a single htaccess file that would match against an addon domain (on a shared hosting account) and an infinite amount of subdomains below it to prevent hotlinking of images.

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• Professional graphics cards a "must" for rendering static environments?

  - by Imhotep

  I'm not sure if the title is clear but with more words what I want to say is: I'm building a PC for a decorator who's main work is to render photorealistic images of house interiors. For that she uses 3dsMax and AutoCAD with Accurender and Photoshop. Is there a need for professional graphics card like Quadro series or FireGL series? Do these cards offer any improvements on rendering time or are they only used for real time rendering?

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• How much does HDD cache matter with Linux softraid?

  - by Jawa

  I'm in a process of renewing/expanding my disk sets, but not quite sure what kind of disks to get, cache-wise. What difference does disk cache amount of 16/32/64MB do, in capacities of, say, 1/1.5/2TB SATA disks? The disks will be used in a webapp server and in a media workstation, with Linux's softraid in raid-1/raid-5 configurations. Note, that as both purposes are purely for a hobby, the pricetag for a dozen of disks is a big issue.

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• MS Excel - how to keep adding raw data to pivot table

  - by Stan

  Say I have a pivot table in sheet2 and the raw data is from sheet1. Is there any way that let me can add more rows to sheet1 periodically and the pivot table still can auto update? Thanks.

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• media storage social network (Host plan)

  - by Samir

  I'm wondering what the best way is to host media for a social network site. Let's say that I expect my social network to reach 500.000 users in 2 years time. I'm not sure how I can best setup my hosting plan in order to have a solid bases to store media files. Which hosting plan would you recommend me to start with and how can I enhance the plan?

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• Apache - suExec - FastCGI - PHP = seciruty issue

  - by Jari V.

  I installed Apache with FastCGI (mod_fastcgi), suExec and PHP on my local development box. Working perfectly, expecting one thing. Let's say I have two users: user1 - /home/user1/public_html user2 - /home/user2/public_html I discovered a serious security hole in my configuration: I can include a file from user2 web root in user1 file. How to prevent? Any tips? php-cgi process is running under correct user.

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• Can mod_fcgid maintain a hard-minimum number of available appserver processes?

  - by user9795

  ...and if so, how? I'm using Apache2 + mod_fcgid to serve a perl Catalyst application, on a box that I own, and I'd like for mod_fcgid to maintain a minimum number of spun-up processes ready to go. The docs say that FcgidMinProcessesPerClass only enforces a minimum number of processes that will be retained in a process class after finishing requests How do I get apache to start up with a certain number of appserver subprocesses on an idle server without using artificial load to get there?

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