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• Glassfish installation error: cannot open display

  - by Mannaz

  When trying to extract the Glassfish jar file with java -Xmx256m -jar glassfish-installer-v2.1-b60e-linux.jar i get following error: (.:31766): Gtk-WARNING **: cannot open display: and extraction doesn't happen. It somehow assumes i'm on an real machine rather on a SSH shell. How can i solve this?

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• “X_FORWARDED_FOR” Header Doesn't Present In The Request

  - by Radi

  In my web application I need to extract the real ip address for clients behind proxy, after searching I found that the possible method to do that is to read the content of "X_FORWARDED_FOR" header , I am using java servlet and the headers of the incoming request doesn't contain "X_FORWARDED_FOR" header , So why the header doesn't included in the request? I am using java 1.7 , tomcat v7 , proxy server :TMG and configured to use "X_FORWARDED_FOR" header . Please advice. Thanks in advance.

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• Looking for a AutoZoom browser plugin

  - by AngryHacker

  I have a pretty large 24" wide screen with a pretty high resolution. When I browse, some sites have a fixed layout and there is basically a narrow column. So I typically zoom in to the point just before the level where I have to scroll horizontally. Is there a browser plugin that auto-zooms in (or via a button or gesture or whatever) to the max available real estate? I'd prefer a plugin for Chrome, but Firefox will do too.

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• Skype Linux similar to Windows Linux

  - by vsecades

  Does anybody know a good option of a Skype based solution that works on Linux? I have a problem, real problem with the current Linux version as it is a crappy, buggy and downgraded version of the Windows equivalent... Help?

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• Any Y2K10 bugs?

  - by petertonoli

  There seem to have been few year 2010 bugs cropping up in real life (EFTPOS machines belonging to BoQ in Australia thought it was 2016) as well as the SpamAssassin hiccup - have there been any other serverfault-like issues occurring as a result ?

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• CPU/Mem/Disk utilization (average) after process has completed

  - by BassKozz

  Ubuntu Server 9.10 So there is the time command which will show you the time it took for a specific process/command to run after the command has completed. For example: :~$ time ls real 0m0.020s user 0m0.000s sys 0m0.000s I'd like to also collect the average CPU usage, Memory, and Disk (i/o) utilization after the process has completed using time (or another command if necessary). How can I accomplish this? Mainly I am using this to benchmark MySQL import performance using different innodb_buffer_pool_size settings.

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• Software for watching TV.

  - by D Connors

  So, I just got a new ENUTV-2 USB TV Tuner Box, and it works fine overall. The driver seems to be OK, but the utility provided by encore doesn't seem to be working 100% in win 7. The only real issue is that I can't mute it, or change the volume level. So I'd like to know: Is there good (free) software out there for watching TV? Thanks

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• How to install software on Amazon EC2 Windows instance?

  - by JohnIdol

  I've never used Amazon EC2 - I am thinking to test a few instances for running intensive computation processes I have a requirement for rather than buying real hardware. I am given to understand the thing is quite easy to setup - but I have no clue of how it actually works. Can I upload disc images and install just any software as on any other virtual machine or is there any significant difference? Any help appreciated!

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• Windows (XP): redirect two serial ports

  - by booha

  I need to virtually bridge two real serial ports, i.e. COM1<-COM6 I'm not sure it can be done with com0com - can it? http://en.wikipedia.org/wiki/COM_port_redirector

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• PXE boot from USB NIC

  - by JoelHess

  Is there a USB solution to PXE boot? I want to use ghost or clonezilla or something to image a bunch of units that don't have on board ethernet, and no clear real way to add to it.

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• Tons Of rpc.idmapd errors in syslog

  - by Slamguy

  I am growing weary of some error messages in my syslog - its showing: Jul 3 15:16:38 web rpc.idmapd[14535]: nss_getpwnam: name 'nobody' does not map into domain 'mydomain.com' I have check, my hostname is correct as mydomain.com and I even added a valid entry in /etc/hostname . I have edited my /etc/idmapd.conf to reflect this domain name, this error message log every 10minutes and its becoming frustrating, I do not know why or whats causing it, the nfs server is working ok, with correct entries and now message in the log. I am using centos6 -- Ofcoure, i have substituted mydomain.com with my real domain

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• What is a system state backup for?

  - by FerranB

  The windows backup utility comes with an option to backup the system-state. What is this for? Has it a real utility? Can I recover that windows on another machine?

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• Avoid linux out-of-memory application teardown

  - by Eddie Parker

  I'm finding that on occasion my Linux box runs out of memory and it starts tearing down random processes to deal with it. I'm curious what administrators do to avoid this? Is the only real solution to up the amount of memory (will upping the swap alone help?), or is there better ways to set up the box with software to avoid this? (i.e., quotas, or some such?). I'd appreciate some feedback. Cheers, -e-

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• Mod_security questions and on User-Agent types

  - by Tiffany Walker

  Very new to mod_sec I want to block a UA string and I noticed there are a few types: SecRule HTTP_User-Agent SecRule REQUEST_HEADERS:User-Agent What is the real difference between them? My block: SecRule REQUEST_HEADERS:User-Agent "perl" "phase:2,pass,msg:'Perl based user agent identified'" Do I need to set a SecDefaultAction phase:2,deny,status:403,log,auditlog before that? Then any SecRule below that follows that action right?

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• Power and Cooling Cost compared with Server/Hardware Cost

  - by psaccounts

  Has anyone done, or is aware of any, calculations to compare the cost of power and cooling compared to the cost of hardware (servers) in a typical data center? This is to compute a true total cost of ownership of self-hosting servers. Of course real TCO includes: hardware_cost + power + cooling + rental + human_cost + maintenance Is there any study that says something like (TCO - hardware_cost) = 40% of hardware_cost in 3 years? Any pointers will be appreciated.

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• Forward incoming mail to any domain not specified in relay_domains

  - by Frode Svendsen

  Hi, we have an internal test-server that uses real, live mail addresses to send out status mails sometimes. We don't want these mails to end up with our users but for different reasons we can't use a catch_all solution and we only have the one available mail server. What we need is a way to forward incoming mail from any domain not specified in relay_domains to a specified mailbox.

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• Alternative to K9 spam handler?

  - by overtherainbow

  I've been using the free K9 spam handler for a couple of years now, but it hasn't been updated since 2004 and has a couple of bugs that bother me: The Find feature stops at the first e-mail found, and doesn't go further I'd like to copy the list of e-mails marked as either real or SPAM, but K9 only copies the first item in the clipboard For those of you who have researched desktop anti-SPAM handlers under Windows, what do you suggest as an alternative, either free or moderately priced?

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• NTFS on the mac - worth paying for?

  - by Console

  I currently use ntfs-3g on my mac to be able to write to NTFS-formatted drives. I have seen two commercial alternatives that boast better performance and more advanced features - Tuxera (a commercial version of ntfs-3g it seems) and Paragon. Are these products really better? Any experiences, hard facts, benchmarks from real-world use?

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• voice transfer 4m mobile to computer using bluetooth connection

  - by vimal

  hello there i am a engineering student. I am doing my project which requires mobile to pc real time voice transfer via bluetooth and vice versa.is it possible? I am using windows 7. plz help me.

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• Any suggestions for email delivery vendor?

  - by aXqd

  We are going to use email for registration and some other purpose of a website and we do not want to maintain our own email sending machine. That email delivery system need to respond in nealy real-time and be quite stable. Any suggestions?

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• Print a PDF book on line. [closed]

  - by microspino

  I'd like to print my PDF copy of "why's poignant guide to ruby" to read It on paper before to sleep. I have several open source book I'd like to print too and some of them are full color. I know about lulu.com but I never had any experience with It. Can you give me some advice with real world proofs about on-line-print-and ship-to-your house services?

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• VNC Viewer shows weird colours when connected to OSX

  - by Mirage

  I am using RealVNC server Enterprise on the Mac. Real VNC Enterprise Viewer on PC. I am able to connect it properly but colors are weird, 16 colors or only blue color is showing up (see below) How do I resolve this?

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• Make a bootable cd from a floppy!

  - by Osama Gamal

  Hi, I have followed this tutorial http://wiki.osdev.org/Bare_bones to build a simple C kernel and boot it successfully. But, how to convert the floppy image to CD image to use it with my real PC?

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• Spell check doesn't work in protected forms in Word 2011 for Mac

  - by Erin

  We have a form template many staff members use. We created it in Word 2004 for Mac, and I was told a shortcoming was there was no way to turn on the spell checker (a real hassle!). I hoped this would be fixed in 2011, but when I open the form and save it as a .docx, the spell check still doesn't work. Many menu choices, including Language and Spelling and Grammar are grayed. Is there any way to get spell check in a protected, fillable form?

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• Are there any scripts to synchronize sites?

  - by Matrym

  I've just set up a fail-over DNS to switch the site to a second host if the first is down. This is great for showing an old / archived version of the site, but I suspect maintenance is going to be a real pain. I moved the files over with rsync in the first place. Is this the kinda thing that could be run as a cron job, automatically moving over newer files?

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