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• Books or other materials to overcome Linux learning curve?

  - by Marek Osvald

  I was born in 1989 and am an active Windows user since 1993. I've always struggled with Linux, not being able to configure the system the way I would like, snooping through blogs and forums for answers, never actually overcame the barrier. The books I've seen and read are either completely command line oriented (and don't get me wrong it's awesome to know this stuff when you're working on a server for example) but seems rather impractical to me on a desktop computer that's partially my development environment. The other kind are user manual describing step-by-step the controls of simplest applications like the Calculator, totally useless to me. What would you recommend for a programmer who needs to learn how to work with Linux but already knows the basics? What materials did you use to learn how to start with Linux?

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• Dialog boxes font is missing in Windows 7

  - by forgetso

  About 3 years ago I messed up my laptop with some virus removal software. It's obviously changed the registry settings and the text in dialogue boxes in the control panel, run box, etc. is the wrong size. See image:http://i.stack.imgur.com/SlFFU.jpg I've tried changing the MS Shell Dlg registry values to different fonts and restarting. I've made sure that I have the fonts SSERIFE.FON and SERIFE.FON on my system and that they are correctly referenced in the registry. Does anyone know how to fix this? I'd like to be able to see all of the options in the dialog boxes! Cheers

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• Using Dropbox API instead of a FTP server for backing up DB/Source in your application.

  - by Somebody still uses you MS-DOS

  This is a small aplication scenario. Usually, when you have to do some backups of source code/database on your server, you use a second ftp server, a cronjob to tar.gz your db dumps and source files, and send this file to your ftp server from your application server. Dropbox created an API to use it's infrastrucutre. Since they provide 2gb for free accounts, I thought about being able to upload to it instead of a ftp server. So, if you do some freelance work, you can create a free account for each client and use this approach, maybe encrypting the files you send. You even gain a revision for each sent file, like a revison control system, for free, from the last 30 days. What do you think of this approach? Is it possible? And, more importantly: what are the security risks involved? (That's why I'm asking this on serverfault, since this POV from sysadmins will be more accurate). Thanks!

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• I suspect that my HDD is causing hardlocks, as all other components have been replaced. How can I check this theory and solve the potential cause?

  - by user867814

  I have had this problem over quite a while now, thorough multiple Linux kernel versions and distributions, as well as replacement of all components, aside from my main HDD - RAM, GPU(twice), mother board, CPU, power supply. What happens is, at one point during the operation of the PC, it will hardlock - everything stops working, external HDD is not shut down correctly and continues to spin until I plug it out and in, there are no system/kernel logs of any kind, and no otherwise nothing that would suggest a cause. Another reason for my suspicion is that the failures happen almost exclusively during HDD read/write activity - shutdown(happens nearly 1/3 of the time so far, it's only been few days though), launching programs, and once during operation of apt. I hope the post is descriptive enough, if you need any additional info, ask(and tell me how to prepare/obtain it), and I will provide. If I'm wrong, point me in the right direction. Thanks in advance.

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• FTP Server with MySQL access, and POST notification

  - by TIW

  Im looking for an FTP server solution, that we can host either internally on a dedicated server, or on Rackspace Cloud/AWS, that provides a HTTP POST notification when a file is uploaded, and allows user accounts to be created either through an API or MySQL database. There are several offerings that provide email notification - but has anyone come across anything that matches the above requirements. BrickFTP being a IaaS system is an option, but we would prefer something hosted in house. I don't believe the standard FTP servers provided with Apache can do the above ... can they?

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• Path is present, Permissions are okay, but still getting error

  - by N e w B e e

  I recently installed pdftk using instruction provided at stack overflow I installed it, and run the commanded whereis pdftk the result was /usr/local/bin/pdftk /usr/bin/pdftk I have the powerpannel access and I saw it through it that pdftk actually exists at the location i run the command pdftk --version, it was okay but when in php i use <?php $command = "pdftk --help"; system("PATH=/usr/local/bin/ && $command",$response); if ($response===FALSE){ echo 'sorry error occured'; } else{ echo $response; } ?> the output is 127 the version i am using is 1.41 and the output '127' is something that i cant understand can somebody guide me?

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• Missing Desktop Icon Labels in Windows 7

  - by Buzzedword

  Hey guys. Big problem that has been bothering me to no end. My desktop icons have been stripped of their icon labels, and nothing seems to be recovering them. To be clear, when I attempt to rename, the text shows up, and when I view my desktop in an explorer window, all text is preserved. System restore to a stock state will not recover. No changes have been done to the computer-- no installs or downloads for two weeks prior to this error. Rebuilt the icon cache, still no response. Anybody know what can be causing this problem? Screenie below. Thanks in advance. OS: Windows 7 Enterprise 64-bit Profile: Local, non-roaming Image: http://img688.imageshack.us/img688/5152/capturemr.png

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• NginxHttpAuthBasicModule with Sinatra & Passenger

  - by scainey

  Hi, I'm serving static pages from a Sinatra application using Nginx. I've implemented Basic Authentication for one page on the site using NginxHttpAuthBasicModule, the authentication succeeds but Nginx doesn't resolve the link. Error log gives - 2010/03/22 12:15:19 [error] 7143#0: *2902 open() "/home/me/live/mysite_home/public /mypage" failed (2: No such file or directory), client: 82.71.18.122, server: mysite.com, request: "GET /mypage HTTP/1.1", host: "mysite.com" The actual file is found at: /home/me/live/mysite_home/live/mypage.erb The configuration file is: server { listen 80; server_name mysite.com; root /home/me/live/mysite_home/public; passenger_enabled on; location /mypage { auth_basic "Restricted"; auth_basic_user_file htpasswd; } } server { listen 443; server_name mysite.com; root /home/me/live/mysite_home/public; passenger_enabled on; ssl on; ssl_certificate /etc/nginx/conf/certs/server.crt; ssl_certificate_key /etc/nginx/conf/certs/server.key; keepalive_timeout 70; location /mypage { auth_basic "Restricted"; auth_basic_user_file htpasswd; } } Not sure if this is a Sinatra, Passenger or Nginx thing, or if I'm just missing something.

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• Optimal partition setup for Windows 7 on SSD

  - by Mike C.

  Hello, I'm setting up my system with Windows 7 right now, with knowledge that I am going to be getting a SSD in the future. What optimizations/setup should I do now to make a smoother transition in the future? Should I created two partitions - one for the OS and one for the data? Assuming this is the case, I would be able to easily ghost my OS partition onto the SSD in the future. If so, what should go on the OS drive besides the OS? Program files? If I install games or Visual Studio, should it go on the OS drive or the data drive? I can see the SSD filling up fast if I install all my program files on there. I've seen a few posts where people talk about leaving a portion of the SSD unformatted - is this something I should do? Thanks!

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• Where are the Record Volume Controls in Windows 7?

  - by DJbigJack

  Windows XP (and previous versions) had a Record Volume Control panel that could be used to select between music inputs (Stereo Mix, Wav, etc) and a microphone. There doesn't seem to be an equivalent capability in Windows 7 . Is there a third party application that provides this functionality? Note: the Windows XP Record Volume Control was accessed by doubleclicking the Speaker icon in the system try which displayed the (Listen) Volume Control. In the menu there was a "properties" which gave you the option of displaying the RECORD Volume Control instead. I used this capabiliy in Win XP to select the required inputs for an Internet Radio Station and now with Win 7, I can't do it any longer

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• Is there a way to redirect certain URLs to specific web browsers in Linux?

  - by jraxxo

  I'm using Chrome as my default browser in Ubuntu 12.10. I need to use Firefox for business purposes (certain websites pertaining to my work only work with Firefox). Is there a way to force Ubuntu to use Firefox for certain types of URLs (maybe as defined by a regular expression) while maintaining Chrome as my default browser for all my other tasks? Perhaps as a shell script running in the background? I'd like this to work system-wide, covering links from Chrome itself as well as PDFs/ODTs, etc. I have searched for solutions, but I couldn't find anything besides OpenWith, a Firefox extension which adds a button to open certain links in other browsers which would again require me to open Firefox beforehand, which does not help me at all. Does anyone have any ideas? Something like Choosy for Linux?

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• Apache with mod_perl eating memory when idle

  - by syneticon-dj

  An Apache webserver running a mod_perl application is exposing abnormal memory usage - after the "day load" ceases, the system's memory is being exhausted by the Apache processes and oom_killer is being invoked. As the load returns the following morning, the memory usage normalizes - probably because Apache workers get recycled periodically if a sufficient number of hits is generated: This is the graph for apache hits per second to correlate: The remaining 2 hits per second throughout the night are induced by HAProxy checks - it runs HEAD http://mydomain.example.com/running HTTP/1.0 requests against the server every half a second with "running" being a static file (i.e. not invoking any perl code). It also seems that disabling these checks remedies the memory usage problem, but obviously cannot be a solution. All of 3 similarly configured servers (behind HAProxy) expose this behavior. The running OS is Ubuntu 10.10, Apache version 2.2.16. This seems to be a memory leak but I have no idea how to start debugging it - any hints?

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• Windows 8.1 reset

  - by CreeperInATardis

  I recently had a massive crash on my Windows 8.1 partition, which has rendered it (practically) unusable. I tried to do a refresh, but the problem is, I have a Windows 8 install disk, not 8.1, and thus it didn't work. I also do not have any system restore points/backups of any sort, but I have managed to move my files off. Also, I do not know where my product key is (and cannot find it online), so a clean reinstall would not work. My question is, is there any way to change my Windows 8 disc into an 8.1 disc to allow me to refresh/reset my PC, or is there any other way to do this (aside from repurchasing?) Thanks!

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• FreeBSD Jail own network stack with vimage

  - by bodokaiser

  I want to throw all services from the host system and put them in jails. Unfortunatly this doesn't work for file sharing (e.g. nfsd) because the jails don't have there own network stack by default. I know read something about vimage which would solve this issue. See more in this thread: http://forums.freebsd.org/showthread.php?t=9006 The use of vimage with raw jails should use moreorless but the use with vimage and ezjail makes it hard. Does anyone have experience about this topic and wants to share it? Regards

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• Is it bad to put your computer in sleep mode every time?

  - by Ivo Flipse

  Often I have a lot of stuff open and don't feel like shutting down my laptop, so I just use sleep mode when I'm transferring it. But I have no idea if this might have any disadvantages. So my question is: is it bad to put your computer in sleep mode every time? Things I'm wondering: Should I turn off my computer every once in a while? Will continuous use of sleep mode slow down my system in any way? Are there any bad side effects (in the long term)? Any thoughts? FYI I'm using Windows 7 on a laptop

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• How to fix a Corrupted USB

  - by Help

  My USB stick has suddenly stopped working. It's a Busbi 4GB. My USB used to be G:/ but as soon as I plugged it in, I used to get a pop up box showing that it was plugged in. Now, when I plug this in, it shows as I:/ and no pop up box appears. It shows in my computer as I:/ and when I click to open it says I:/ is not accessible the disk structure is corrupted and unreadable. I have tried to change the file name back to G:/ but nothing happened (this was under disk management). On disk management, it shows Volume as I:/ Layout simple Type Basic File system RAW status Healthy (Active,Primary partition) Capacity 3.42GB. I've tried right clicking properties then the tab tools and click error checking (this option will check the volume for errors). When I click "check now" it comes up with the disk check could not be performed because Windows cannot access the disk.

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• Reading S.M.A.R.T. statistics on an ESXi?

  - by leeand00

  Is it possible to read S.M.A.R.T. statistics on harddrive in an VMWare ESXi? When I did a backup last night I received an error message that didn't really seem to indicate if the error came from the local drive I was backing up to, or the remote ESXi Virtual Machine's E:\ drive I was backing up from caused the error. When this happened I ran chkdsk on the local drive and on the remote virtual drive. It seems like it worked, I'm no longer getting the error, but if it is something serious, I'd like to know about it before the drive fails. I've already hooked up the backup drive to my system so I can read the the S.M.A.R.T. statistics, but I have no idea how one could do this on a ESXi.

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• Windows XP occasionally hangs for 2-3 minutes as the splash screen fades in.

  - by marcusw

  This is a bit of a rare problem, I have not been able to debug or fix it or find anyone else with the issue. I hope someone here can help me out. Once in a while, I boot up Windows XP from the first partition of the first disk (using grub, the computer dual-boots ubuntu) and it hangs as the Windows XP splash image fades in, leaving the screen with a dim image of the splash screen. After 2-3 minutes, it continues to boot as normal, no error messages or strange behavior. I have noticed that this happens about 75% of the time when the last time the computer was shut down it was from Ubuntu, and maybe 5-10% of the time otherwise. I have looked at system logs as far as I was able, and did not find anything the miss. What is causing this and how can I fix it?

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• Desktop Properties Background selection problems

  - by Gazza

  From the Desktop of my XP Home Edn SP3 system, under the Right-Click Menu Properties, the [Desktop] tab, of the 'Display Properties' window shows a selection list for the Desktop's Background image. For me this list has become frozen and its slider (at right) will not move. The [Browse] button and the 'Position' dropdown list (whether the selected image is centred, stretched, etc) are also greyed out. I can still use both the Color dropdown list at the right of the Background list and the [Customize Desktop] button below it, and make any changes as desired. What's gone wrong. I'm guessing maybe a registery setting or I've deleted a file somewhere, but haven't found the cause as yet. Any suggestions?? Thanks.

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• How do I stop the natd log spam on Mac OS X with Internet Sharing?

  - by pukku

  Hi! I have InternetSharing enabled on my Mac (Leopard), so that my iPhone can get access to the internet in a wireless environment. Every second or so, I get the following error sent to system.log: 7/2/09 2:12:33 PM natd[20861] failed to write packet back (No route to host) Sometimes, the error is 7/2/09 2:12:33 PM natd[20861] failed to write packet back (Host is down) Is there some way to either fix the problem that is causing these errors (which I'm guessing is because the iPhone doesn't maintain a wireless connection when not in use) or to prevent them from being logged? Thanks, Ricky

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• Making application listen to port

  - by dplanet

  I am running an Ubuntu guest machine through my Windows 7 host machine (with Virtualbox), and on the Ubuntu system running an application that uses port 6969. Through configuring the Virtualbox port forwarding settings I have made it possible that I can go to 127.0.0.1:6969 in my browser and see the application's default page. However, I'm wondering how I can port forward from my Windows 7 machine to the whole network. My local network (IPv4) address is 192.168.0.5. I want to be able to go to 192.168.0.5:6969 from any computer on the network and see the application. I've searched Google but can only seem to find solutions in Linux, not Windows. How can I do this?

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• Do not get 'Safely remove' option in Tray for USB storage devices.

  - by blitzkriegz

  I had done some tweaks in service settings (Disabled some as I thought it is not needed). Now, I am not getting the option to safely remove mass storage device when I click the icon on the system tray. I tried enabling some of the services, but it didn't help. Moreover I'm not very sure if this anomaly is because of my changes in services. Any idea how to make those 'safely remove' options appear when I click the USB icon on the tray. Right now nothing is happening when I click.

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• Computers with Small Capacity SSD - For caching?

  - by RXC

  Recently, in newsletters from websites, I have been seeing computers for sale from manufacturers that include an HDD and an SSD but the SSD has a small capacity like 24 GBs. I don't know if this still holds true, but I learned that when building a computer, you would want to install your OS on your fastest hard drive. I do a lot of PC gaming, so I install my OS and games on my SSD, because I learned that games and many applications make lots of system calls to the OS and performance can only be as fast as the slowest piece. Why these computers come with small capacity SSDs? Most OS's take up around 20 to 30 GBs of space, so what are the benefits of such a small SSD? Are these small size SSDs for caching? and what exactly does caching mean (what does it do and how does it help)?

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• Can I set osx to boot with several spaces containing a different set of apps in each?

  - by Jay

  When my system boots I would love to have it to create three spaces: First Space: email and things (my to do list program) Second Space: textmate and a browser containing first site I am developing Third Space: textmate and a browser containing my second site Is it possible to set it up to do that each time? I'd prefer not to use the reopen windows option on shutdown because most days I have a bunch of things open that I won't need the next day. Thanks. UPDATE: I found TotalSpaces2 and it will open all the same spaces when I reboot. I suppose that I might need some kind of hack to get the applications to start in the appropriate space at boot.

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• NginxHttpAuthBasicModule with Sinatra & Passenger

  - by scainey

  I'm serving static pages from a Sinatra application using Nginx. I've implemented Basic Authentication for one page on the site using NginxHttpAuthBasicModule, the authentication succeeds but Nginx doesn't resolve the link. Error log gives - 2010/03/22 12:15:19 [error] 7143#0: *2902 open() "/home/me/live/mysite_home/public /mypage" failed (2: No such file or directory), client: 82.71.18.122, server: mysite.com, request: "GET /mypage HTTP/1.1", host: "mysite.com" The actual file is found at: /home/me/live/mysite_home/live/mypage.erb The configuration file is: server { listen 80; server_name mysite.com; root /home/me/live/mysite_home/public; passenger_enabled on; location /mypage { auth_basic "Restricted"; auth_basic_user_file htpasswd; } } server { listen 443; server_name mysite.com; root /home/me/live/mysite_home/public; passenger_enabled on; ssl on; ssl_certificate /etc/nginx/conf/certs/server.crt; ssl_certificate_key /etc/nginx/conf/certs/server.key; keepalive_timeout 70; location /mypage { auth_basic "Restricted"; auth_basic_user_file htpasswd; } } Not sure if this is a Sinatra, Passenger or Nginx thing, or if I'm just missing something.

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