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• Forwarding audio like X in SSH

  - by Akilan

  While it is possible to use X applications remotely by using -X switch in ssh, the sound is being played in remote machine's speaker only. For example if I view a film in VLC/Totem only video is visible and I can't hear the audio. Is there a way to forward audio too? [without digging through Pulse-audio's setup, I mean; Like how ssh understands X forwarding by itself.] I have tried this only in Ubuntu (in various Ubuntu versions from 9.10 through 10.10), if that helps.

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• OS won't boot during vs2010 install on vista 64

  - by Noam

  I am installing vs2010 on a vista 64bit machine. During the install it asked for a restart. Since that, vista won't load. I tried restore to previous good config - didn't help. I am only able to boot it using safe mode with networking. When I did that, it continued the vista part of the install (the screen with the 3 out of 3 updates) but after that when I restarted again - still fails. HELP!!!

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• How to tell Mercurial to never create hard links

  - by scrapdog

  I am planning to use Mercurial in the near future on some projects. These projects will normally reside in a directory on my Windows machine, but I will be sharing these directories using VirtualBox so I can work on them directly from within Linux. I understand that Mercurial will sometimes create hard links when cloning repositories. I'm not sure how a VirtualBox shared directory handles these hard links (or if it even can), so I'd rather just tell Mercurial to never attempt to make hard links and always make a copy. My question: how do I globally disable Mercurial from hard linking? (Although if someone has gotten Mercurial and VirtualBox shared folders to work nicely with hard linking, I'd like to hear about it!)

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• Could 1 GB of RAM work better than 1.25?

  - by user67082

  This is for a server running Ubuntu Server 10.10. The server is an old desktop PC. It had 2 sticks of 256 MB of 182-pin DDR 400 MHz RAM in it (total 512 MB of RAM). I just ordered a 1 GB stick of compatible RAM for the machine (now would have a total of 1.25 GB of RAM). A friend told me that it might run better if I removed both sticks of 256 MB RAM and used just the 1 GB stick I will be receiving. This seems counterintuitive since then there would only be 1 GB of RAM instead of 1.25; is it possible that it would be better to run with 1 GB or is he totally wrong? Thanks for the help.

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• Exchange 2010: Import a PST when Local Move Request fails

  - by gravyface

  So the trail of tears continues with my SBS 2003 to 2011 migration: all the mailboxes have moved mailbox store from OLDSERVER to NEWSERVER, with the Local Move Requests completing successfully, except for one. I've logged into their machine and have exported their mailbox as a PST. I'm about to import it, but it seems to me that because the mailbox is still on OLDSERVER, even with a new Outlook profile pointing to NEWSERVER in Outlook, it'll push the mail into the current mailbox store on the old server. Please tell me I don't have to blow away her existing mailbox, logon, etc. on the old SBSERVER: is there a way to change the state from "Legacy" to "User Mailbox" without actually moving the mailbox store? Create a new mailbox for her user in NEWSERVER?

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• Powering off sends me to "Launch Windows Repair" automatically instead! What do I do?

  - by Jason

  With Windows 2008 R2 Server, I noticed that if I remotely reboot the machine (because it is hung or I think it is hung), the server, when it restarts, defaults to "Launch Windows Repair" (or something similar) rather than "Start Windows Normally". To change it, I have to trek down to the server room and change the boot up otherwise it will go into an endless loop (because I don't have the setup media and DVD-ROM installed). This seems to be new with 2008 R2 because I have not seen it elsewhere. What do I do? How can I remove this or change the default?

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• Application running as a service is not able to create the same number of processes as when it runs

  - by Pini Reznik

  I have a Windows application which creates up to 35 processes and it's working OK when it's running from cmd. But when it is executed as a service on the same machine it is able to create only 20 processes and all other are killed because of some kind of resource exhaustion problem. The problem is persistent on one Windows 2003 server but not reproducible on other servers. Can it be because the system has run out of desktop heap? http://support.microsoft.com/kb/184802 How can I check it?

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• Redirect outbound traffic on port 53 to port 5300 with iptables

  - by Zagorax

  I'm running a local dns server on port 5300 to develop a software. I need my machine to use that dns but I wasn't able to tell /etc/resolv.conf to check on a different port. I searched a bit on google and I didn't find a solution. I set 127.0.0.1 as nameserver on /etc/resolv.conf. Could you please tell me how can I redirect outbound traffic on port 53 to another port? I tried the following but it didn't work: iptable -t nat -A PREROUTING -p tcp --dport 53 -j DNAT --to 127.0.0.1:5300 iptable -t nat -A PREROUTING -p udp --dport 53 -j DNAT --to 127.0.0.1:5300

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• Java on 256MB system?

  - by Mike S.

  For a school project, I've registered a free VPS on a hosting provider (pipni.cz). It has 256MB RAM: Mem: 262144k total, 148104k used, 114040k free, 0k buffers It's running on Debian Squeeze. I always get this error when I run a Java program: Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. I tried to use Xms, Xmx, Xss with low values and still same result. ulimit -v gives me "unlimited". My application will be pretty simple and I need to use rmiregistry also. Can somebody help?

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• Crunchbang asks for URIs to get build dependencies for php5 [closed]

  - by Koen027

  I'm trying to install PHP5, by compiling it myself. I'm doing this on Crunchbang Linux, version 11. Specifically, the version using the 3.2 kernel. Crunchbang 11 is based on Debian. This is a 64-bit Virtual machine, running on a 64-bit Win7 Professional. Using Virtualbox 4.2 This is my sources.list file: http://pastebin.com/rQJNwX7c When I try to do sudo apt-get build-dep php5, I get the following output: Reading package lists... Done Building dependency tree Reading state information... Done E: You must put some 'source' URIs in your sources.list I'm not sure what's going on here. Can anyone point out what's missing in my setup? Also, since I'm under 300 reputation on serverfault, I can't add the "crunchbang" tag.

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• Restrict whole system on certain cores except a few process?

  - by icando

  Hi I am running some latency sensitive program on a Linux machine (more specifically, CentOS 6), and I don't want the threads of the process being preempted. So in my plan, the first step is to set cpu affinity of the threads so that threads are running on separate cores, so they don't preempt each other. Then the second step is to make sure other processes in the system not running on these cores. So my question is: is it possible to restrict the whole system running on certain cores, except this process? This should apply to any newly created processes in the future.

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• How to configure permissions for win2008 task running as Network Service to stop/start a service on different system?

  - by weiji

  Well... title says it all, actually. We've got a Scheduled Task set up on a windows server 2003 box running as the Network Service, and the batch file it runs will invoke "sc" to stop and then start a service on another windows box, however sc reports: [SC] OpenService FAILED 5: Access is denied. Running the same batch file via the windows explorer has no issues, and my user account is part of the Administrators group so I believe this is why there are no issues when I try it manually. Is this a permissions thing I enable for Network Service on the first server? Or do I enable permissions for Network Service somehow on the target server? This question (http://serverfault.com/questions/19382/why-sc-query-fails-from-one-machine-but-works-from-another) touches on something similar, but I'm looking for enabling the Network Service to access the service via the scheduled task.

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• Which UPS, for home use, which can automatically shutdown the PC when battery is low?

  - by Tony_Henrich

  I am planning to build a single server machine which is highly dependent on data residing in RAM for performance reasons. I am looking for a UPS which can power the PC during a blackout (very rare) and when the battery level is like %20, it sends a signal to Windows 2008 to shutdown. Even if it's only for a few minutes, that's good enough. This is for home use so I am looking for an inexpensive unit ( less than $300? ). Which brand/model is good choice? I prefer one whose battery is easily & cheaply replaced.

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• Install correct libraries depending on 64/32 bit

  - by Rich

  I am using Bash to install a customised version of JBoss, and one of the things I would like to do is install the correct version of the Apache Portable Runtime, which is a native binary. This script could be run on both 32 and 64 bit versions of RHEL. What are my options for identifying which version of the APR to install? I think we only have 32bit and x64-based systems here. I would still like to identify i64 systems so that the script can refuse to install on that type of machine. I am aware of using uname -m and grepping /proc/cpuinfo to find out, but was wondering which approach others would recommend?

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• Add/Remove script for local printer

  - by GxFlint

  I have a Windows XP machine that runs two applications and both print on a thermal printer connected by a serial port. For one application, the "Generic / Text Only" printer must be present, for the other to work I need to remove it. I've found a few .vbs scripts, but they are for network printer. How do I make them work with my local printer? Is there a better solution? The user would have to run the script every time he needs to switch from an application to another.

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• (core dumped) ${TOMCAT_START}?

  - by Farticle Pilter

  I am running COMSOL (a scientific software) as a server, to which MATLAB is connected to. After a while, COMSOL aborted with the following error message. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolbatch.ini Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolserver.ini COMSOL 4.4 (Build: 150) started listening on port 2036 Use the console command 'close' to exit the program A client with username 's' has logged on to the server from 'beads.myuniversity.edu' using port 2036. /software/linux/x86_64/comsol-4.4/bin/comsol: line 1436: 32757 Aborted (core dumped) ${TOMCAT_START} What might be the cause of this (core dumped) ${TOMCAT_START}? How may I fix it?

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• cant access my local web server with the external IP

  - by TommyG

  I havent been able to find a solution to my particular problem. I have a MAC which I set up as a web server and configured my router to forward to the local IP. When trying to access my site from outside, it does say "It works!", however, when I call a simple Hello World PHP script that I have, I am getting an error that the page could not be opened. I did enable PHP on my machine so thats not the problem. I really have no idea how can I access - I followed so many tutorials and did everything correctly. My router is a Linksys WRT160N if it matters at all. In the port forwarding section, I selected to forward

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• Why does Mac OS X auto-mount the (disabled) home folder?

  - by NStal

  I've just bought a MacBook Pro. Now I'm trying to build up a filesystem (just some path) that looks like my Ubuntu server. By doing so, I can reuse a lot of the scripts I've written before. I found that Mac OS X auto mounts home with map auto_home, which prevents me from even making a symbolic link. I managed to solve this problem from the solution here. It mentioned that Time Machine will auto-exclude the home folder. But I'm wondering why, this is confusing.

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• Best tool for writing a Programming Book?

  - by walkthedog

  Well, this is not directly programming related! But a friend of mine wants to write a book about programming. Now he asked me if I knew a good software for this, because Word crashes 10 times a day on his machine, and OpenOffice is just very chunky and slow. Also none of them seem to have any useful support for including Code Listings (examples) with useful syntax highlighting or at least some sort of support for inserting code (i.e. indicating line breaks with arrows that turn around, line numbers, etc). Latex is out of question since it's incredible hard to use and has no really useful feature for including tables. It's a mess. Maybe some IT authors are here who can give some hints what tools they use. That would be great!

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• Are Uninterruptible Power Supply (UPS) at home really a worthwhile investment for home computing? [c

  - by Jian Lin

  Possible Duplicate: Is a UPS a good investment for a home machine? I have 2 Uninterruptible power supplies at home, but they seem to expire after 5 years or so. During this 5 years, it maybe saved the computer from turning off twice. But I wonder, I often save my documents every 10 minutes. So the most I can lose is 10 minute worth of work. Not to mention that, I may not be editing anything when the power is out. Also, when the UPS expires, one of them will give out beeping sound once in a while, probably signaling the changing of the battery. So I can either buy 2 new UPS or just buy 2 power outlets instead. 2 UPS, costing $160 to $250 roughly, can it be really worth it if it can save your computer from powering off for just 2 times? What are the alternatives?

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• Moving a "All-in-one" PC when turned on/off.

  - by Purak

  I have an "all-in-one" pc. I know that moving a pc when it is switched on is harmful to the hardware components. What I would like to know is if the same applies to "all-in-one" pc's and if the same applies to regularly moving it from one side of the room to the other when it is turned off! The reason for the question is that I work on one desk during the day, and in the evening move it to the couch so I can do other stuff while watching TV or something. I always turn it off before the move, but somebody told me that I can be damaging the machine by doing so. Can anybody shed some light on this? Many thanks

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• Good open source proxy server software for windows server? [closed]

  - by JL.

  Looking for good open source proxy server software. Preferably for a Windows server based machine. Need it primarily for testing my applications connectivity in a proxy scenario. So something that is dead easy to setup and configure. The proxy will run locally on my LAN, and I want it to emulate as close as possible the type of proxy you might find in corporate networks, because I'm testing an SOA system. Will not be used for its real intended purposes, so scalability is not a huge concern. Thank you

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• CentOS running inside VMware as WebServer times out on outside connection [migrated]

  - by Tom Hart

  I have a CentOS machine running inside VMware, and I have got PHP and Apache set up on it, so if I open a browser (on the VM) and go to either localhost, or 192.168.0.3, I get a phpinfo page I made in /var/www/html/index.php, but, if on the host (Windows 7), in my browser I go to 192.168.0.3, it times out. I can ping the IP address from Windows and get a response, I just can't through the browser. Does anyone have any ideas what I need to do to get this working? This is my first time using a VM and I'm getting lost in the network settings.

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• What are my options for a secure External File Share in Server 2008 R2?

  - by Nitax

  Hi, I have a Windows Server 2008 R2 machine installed on a home network with a number of files that need to be shared in a few different scenarios. I would like for all three scenarios to have a solution with some sort of encyption to protect the data during transfer. Scenario 1: I need to access files from my laptop (Mac OSX) or another computer outside of the network. This option seems like the easy one to answer in that I could use LogMeIn, the windows VPN, etc. to create such a connection. Scenario 2: I need to provide access to another user with minimal installation / configuration on his or her end. This makes me think of the new FTP 7.5 provided with Server 2008 R2 but i'm not sure of the details: Does it support SSH or some other form of encryption?, can an OSX user connect?, etc. My question here is what are my options? I really just don't know where to get started...

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• A lot of connections to port 6881 - some new attacks or what ?

  - by stoleto

  Ok so i am the admin of a small network with a web server and only the web server has a direct connection to the internet, the rest of the network are connecting through another place. I was inspecting the traffic on the server with tcpdump, and i found a LOT of connections from different IP addresses to port 6881. All ports on my machine are blocked except those who are really needed for a web server (like port 80), so i checked it out and confirmed that 6881 and the rest ports are in filtered(firewalled) state. Why all those ips are continuously trying to make connection to the server on port 6881 no matter it's not open at all ? Is this some new kind of attack or maybe there's some new exploit (maybe 0day?) for some service running on 6881 ? AFAIK on 6881 operate the bittorrent and similar, so really, what's the deal ? It would be nice if someone clarifies me some things.

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