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• Getting FreeNX client to work on Mac OS again.

  - by Fantomas

  This problem is not uncommon, but I have not seen a solution that would work for me. Keyboard mapping is completely screwed up - e.g. typing 'damn it' gives me '1cxngw'. All machines have QWERTY keyboards and are set up to use US. [Client] Mac OS version: Version: 10.5.8, Build: 9L30 [Client] Kernel version uname -a Darwin <comp name> 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386 [Client] FreeNX Client version: 3.4.0-8 [Client] MacPorts version: MacPorts 1.8.2 [Client] The X Windows System: XQuartz 2.5.0 (xorg-server 1.7.6) [Server] OS: Ubuntu 9.04 [Server] Kernel: uname -a Linux <comp.name> 2.6.28-18-generic #60-Ubuntu SMP <date> x86_64 GNU/Linux [Server] Other info: please ask for it but do tell me how to query/look for it. Thanks!

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• Web Content Filtering for Windows Clients

  - by djoyce

  I'm working with a small business to solve a bunch of problems. One is their Windows 7 POS registers need to have web access restricted to only three remote support sites, but the back office machine needs an unfiltered connection. I'd like something I can install and configure on the few registers to block all but those few sites. In a perfect world this would restrict the normal register user, but the admin user would not be filtered. Free is best, if it works, but a small fee would be alright too. Microsoft's Family Safety filter is close, but requires a Windows Live account, which isn't ideal, but may be alright. Anyone use this in a small business environment? I'd prefer something easily managed at the local machines. K9 Web Protection is interesting and I'm going to look into it more. Are there other options? Seems like someone would have made something simple like this as an open source project, but maybe not.

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• Switching to Chrome from IE

  - by Alan Parrish

  Hi, I work in IT at a school and we recently updated our database software, however the web access that the teachers use to do registration does not work too well with Internet Explorer 7 and we're thinking about switching to chrome (mostly due to me hating IE in general) but the problem we have is that users are unable to migrate their bookmarks over from IE due to account restrictions, is there any way to get this working? A bit of info about the system if it could be helpful; Almost all the client PCs are running Win XP SP2. My colleagues machines are running Windows 7, I use OS X Snow Leopard and most of out servers are running windows server 2003 (with the exception of 2 one on 2000 server and another on 2008 R2). The Active Directory Controller is running Windows Server 2003

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• Is Tomcat Shared Session / Cluster between two machine possible?

  - by Snorri

  I have a setup of several Tomcat servers distributed between a few servers, all running the same thing. Apache is on top of Apache and a loadbalancer in front of the Apache servers. I want to cluster the Tomcats using Shared Session to minimize downtime and user interruption while deploying apps. I know clustering works within the same server but is it possible to setup Tomcat in a way that it shares sessions between servers on different machines? = Server 1 == Apache 1 === Tomcat 1 = Server 2 == Apache 2 === Tomcat 2 When Server/Tomcat 1 would be taken down, users and their sessions would transfer over to Server/Tomcat 2 and vice versa.

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• Can I make Windows behave like an ethernet hub?

  - by dromedary

  I have two machines A and C mutually connected to NICs on a third machine, B, as follows: A-B-C B is a Windows 7 machine configured with a bridge containing the A-B and B-C NICs, so that A and C can communicate. So far, so good. I need frames from A destined for B to also arrive at C. Essentially, I would like Windows to behave like a hub rather than a switch. Is there any way to do this? If you have any ideas at all, no matter how hacky or roundabout, I would love to hear from you! I have been tearing my hair out over this and by now I am willing to try anything. My only limitations are that I can't touch A or change to a different operating system on B.

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• Why does yum index get corrupted?

  - by TomOnTime

  Occasionally yum's cache gets corrupted and we see errors like this: error: db3 error(-30974) from dbenv->failchk: DB_RUNRECOVERY: Fatal error, run database recovery error: cannot open Packages index using db3 - (-30974) error: cannot open Packages database in /var/lib/rpm The workaround is rm -f /var/lib/rpm/__db* and then the next "yum" command regenerates the data. My question is: what is likely to be causing this? Is there some common task that ignores locks or has other problem that causes this? We have hundreds of CentOS machines and there is no pattern to which see this problem. It could be a "one in a million" issue, which at large scale is seen often. NOTE: I realize this is a very "open ended" question, but if an answer finds the cause, I will go back and turn the question into something more canonical that directly relates to the specific issue.

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• Cannot schedule task for domain user account

  - by Filburt

  On our Win 2008 machines I can't schedule tasks for domain users because the domain name does not resolve to network name but the AD dc name. The "network name" looks like ABCDEFGE-HIJKLM and the "dc" / "name" would look like ABCDEFGE-HIJKLMN. When selecting the domain user account the account qualifier will look like ABCDEFGE-HIJKLMN\task.user. This results in an "invalid account" error. When however keeping the currently logged in user it will display ABCDEFGE-HIJKLM\current.user. Does this behaviour result from the presumable "illegal" domain name? Is there a workaround for this?

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• RDP - Sharing shortcuts and/or toolbars

  - by Joe

  I often have to work across several virtual machines through RDP. I used to work with Terminals, and recently changed to mRemote NG. As of now, I have a checklist that I run on each new VM I create, in order to populate the desktop with the shortcuts and apps that I use regularly. Then, I create a checkpoint and use that when I need to revert to a "clean" machine. However, it's not always practical, and the VMs I have to use are not always created by me so that checkpoint is not always available. I know that I could use a template when creating the VM, but it doesn't solve the problem when I have to use VMs that I do not own. Does anyone know of a way to setup one set of shortcuts/apps and be able to launch them on a remote desktop connection easily? Kind of like a toolbar that is present wherever I'm logged on...

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• Problem communicating with one machine in my domain

  - by pmaroun

  Context: 3 HyperV guest images (DC, SQL, MOSS) 1 internal network 1 domain (PJM.COM) DC: 192.168.0.192 SQL: 192.168.0.153 MOSS:192.168.0.160 I am having communication problems from/to the MOSS machine from the other two. I removed the MOSS machine from the domain and cannot rejoin. When I ping the MOSS machine from DC, I get the following response: Pinging MOSS [192.168.0.152] Reply from 192.168.0.192 Destination host unreachable (4 times) When I ping the MOSS machine from SQL, I get the following response: Pinging MOSS [192.168.0.152] Reply from 192.168.0.153 Destination host unreachable (4 times) From the MOSS machine, I can ping the server names, however I cannot ping the FQDN. When I ping from the DC and SQL machines, I get IPv4 addresses. When I ping from the MOSS machine, I get IPv6 addresses. I'm a developer and don't know what steps to take to resolve this issue. Please help!?

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• Sun OS 5.10 not honoring .hushlogin

  - by nixomose

  I scp and ssh a zillion times a day, and because of our corporate policy I can't get rid of /etc/issue or /etc/motd on the destination machines. So whereas I just want to see the results of my scp or ssh, all I ever end up seeing is thousands of copies of the motd. .hushlogin doesn't seem to be honored. Any other ideas on how to get rid of the message display? Is there some sshd config setting I don't know about (though I probably couldn't change that either)? Is there some curiously sunos/solaris specific way to achieve the goal?

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• Group policies - WSUS

  - by cory

  Hello, I am really lost as to what is the reason as to why my group policy is not working on my domain. I have setup a GPO for my wsus server to a specific OU in my domain. It seems as of right now, none of my machines have inherited that GPO. I have manually put it in quite a few computers. Most of my computers in the domain are linked up to my wsus server, but all my desired settings are not there. If I run gpresult /R, On one computer I ran this on, it is linking to my backup domain controller and not my main. On another computer I checked this on, it is linking to my main DC, but it did no inherit the GPO. When looking on my DC on gpmc - I see the policy is forced to the OU as #1 precedence. Thank for any help.

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• Import EML emails into Outlook 2010 64-bit

  - by nness

  Evening everyone. I'm helping setup a small office network, where a number of old PC's are being replaced with new ones with a 64-bit copy of Outlook 2010. The old emails were stored in Windows Live Email, and were exported as .eml files (since we were replacing the machines). All the support I can find indicates that .eml files could simply be dragged-and-dropped into a folder in Outlook 2010, and it will import them correctly. However, it seems this is not the case in the 64-bit versioin, where dropping in .eml files results in a new message being created with these files as attachments. We can re-download the most of the emails off the server if need be, but there were user folders which were not on the server which we were hoping to import. Any advice would be fantastic at this point!

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• Operating Systems supported by the Intel SR1435VP2 Server Platform?

  - by Xspence

  I recently had two Intel SR1435VP2 Servers (with SE7320VP2 server boards) donated to me from a colleague. Google hasn't yielded much more than user manuals when searching for OS-compatibility answers. I have worked with flavors of Linux such as Ubuntu and Debian, but Intel only documents that they have tested proprietary operating systems such as SuSE, Solaris and Red Hat as documented on their driver downloads page. Has anyone worked with these machines before, and if so, do you know if the SR1435VP2/E7320 chipset supports OS's such as CentOS, Debian or Ubuntu? If you need more information or clarification, let me know. This is all new for me. Thanks in advance.

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• Load-balanced Linux server across internet?

  - by LinuxGnut

  I'm investigating setting up a load balanced server solution consisting of three CentOS 5.4 boxes. Two of these boxes will reside in one facility, while a third will reside in a different facility. I'm currently working to set up heartbeat, ldirectord, ipvsadm to load-balance the machines, but I'm not sure its going to work with I'm not overly familiar with the details behind how all of these work, but is the load balancing going to work correctly when these servers are not all on the same LAN? I'm not sure if heartbeat is using SNMP to send signals or not, which would only work over a LAN. Has anyone tried this or found a different solution?

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• Restart an in-use NFS server without interruption (within timeout)

  - by zebediah49

  I have a bunch of compute clients working on jobs, saving output data to a NAS machine. All machines are centos 6.2. They mount it via automount NFS, with a timeout of 1200 (default config). The NAS machine needs to be restarted. If I can restart the machine within that 1200s (20 minute) window, will the clients just block on IO until it comes back up? A minor interruption (pause) in service is ok, as long as it doesn't cause the running processes to error out. If necessary I could loop through and SIGSTOP all job processes, restart and resume them -- I just don't want to break the open file handles. How can I run a restart like this without killing processes with open files?

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• Copy an Amazon EC2 Instance to use locally

  - by Excolo

  Ok, so we have a spare server I have installed Debian Wheezy on, and setup Xen on for virtual machines. It has better performance than all our ec2 instances combined, and will cost less to run (for a few various reasons) I would like to get the EC2 instances downloaded to my server, and converted to run for Xen, but im having difficulty finding anything specific. I did not setup the EC2 instances myself, and am not very familiar with them. Everything I have found (which isnt much) just says "Do XYZ" and I have no idea how to do those. So being as specific as possible would be helpful. Also, confusingly I see people writing in forums saying you can only export linux images (which mine are, Ubuntu images) but then I see on amazons export tool saying you can only export Windows server? Am I missing something here? Is that not the right place to be looking? Thanks

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• PHP and load balancing

  - by StCee

  I have one major domain but the server spec behind it is not good enough. Hence I want to relay the traffic, in particular php-mysql queries to multiple smaller servers. How is that normally be done? (BTW I wonder how much traffic or number of php/mysql request a normal setup on ec2 micro instance can handle? ) I did have a look of EC2 load balancer. But is it only possible to load balance on machines of your own account?

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• linux or vmware

  - by bahar

  Hi I don't know if here is the right place to ask this question or not but its vital for me to solve it. I run open suse 10.2 on a vmware and my operating system is vista. yesterday I run my vmware and another program but both couldn't run and I end both tasks to solve it but now I can open vmware without any problem and run another os but not my open suse. the error is: Cannot open the disk 'C:\Users\hamide\Documents\Virtual Machines\SUSE Linux 2\SUSE Linux 2-000003.vmdk' or one of the snapshot disks it depends on. Reason: Failed to lock the file. please help me I don't have any recent back up and It takes too long to do all my project again.:( Bests

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• Recursively copy only new or changed files

  - by Niklas

  I'm sure this must have been asked and answered before, but I just can't find it right now... I have a Visual Studio post-build action that currently does a recursive copy (using xcopy) of an output folder to a different folder. This takes longer than I like and I'd like to only copy newly created and newer (changed) files each time (which xcopy doesn't seem to support). I cannot depend on any not-installed-by-default tool since the solution is used by different developers on different machines. What would a superuser do?

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• GVim asks for passphrase on every action when using scp

  - by Ashnur

  I want to use my vim config when editing files, but there are at least 5 different servers right now where I have to edit them. Of course I could use console (where I set up ssh-keys and and have a script so it wont asks for passhphrase), but then I have to maintain the vim config on every machine. so I decided to use gvim and browse/edit the remote machines via scp://, but on every action a popup appears asking for the passphrase. this is a ubuntu 10.10 install, with xfce installed later on. i checked in the xfce settings so gnome services should start, but it still won't remember the passphrase.

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• How to avoid trailing spaces when you copy something from terminal?

  - by Michael Härtl

  I often copy a code snippet from a SSH terminal session where i'm logged in to some remote server and have a file opened in vim, for example to paste it here into an answer at SO. It frequently happens, that the code is padded with trailing spaces to match the terminal width. Whereas i've seen this on both, my Ubuntu and Windows machines (using putty) i think, it doesn't happen always. I was not able to figure out when it happens, though. So i wonder how i can avoid those trailing spaces which i have to remove manually all the time in the textarea, where i copy it to. Note, that the files do not have trailing spaces on the server! It only happens if i select and copy some text.

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• Synergy Locks up w7 when Visual Studio is debugging

  - by EdK

  I love synergy but as a developer this is driving me crazy. I use Synergy to go through two x64 Windows 7 machines (with all flavors of Visual studio from 2003 to 2010 professional) and an MacOS 10.6? desktop and most of the time it works flawlessly. However, if I happen to be in the middle of a transition from one windows 7 machine to the other (it's never happened to the mac but I don't flip to it that often) when Visual Studio hits a breakpoint, the mouse and keyboard both completely lock up and the only way I can seem to do anything is to physically unplug the mouse and keyboard and plug them back in. Unfortunately I have to crawl under my desk to do that, so you can see where it'd be annoying. Anybody have any idea how I can get around this? I did note that it was much more frequent with the previous version I had of synergy+ before I upgraded/sidegraded to the current version of synergy. But it's still happening. Thanks alot,

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• XDMCP is slow any ideas? (looking for alternative remote desktops)

  - by peteri

  I've been used to using RDP on Windows to remote to machines, and I've got an asus eee 701 which I want to use to do some *nix programming on. While the eee is a lovely little machine the screen and keyboard are a little small to use for lots of programming. I've tried using Xming (the free version) to remote login into the eee from my desktop using XDMCP (or even using a ssh session as a straight X11 server and no desktop on the eee) the whole thing seems seriously slow over wifi the initial desktop takes at least 5 seconds to paint (might even be 10 seconds I haven't actually timed it). So my real question is what do other folks use for remote control with a GUI for their *nix boxes? I am finding it hard to believe the performance is so bad over a wifi network (It makes the Mac IIs I used to use a college in 1988 seem fast) or is this just a problem with Xming and using say the Cygwin X11 server would be better.

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• WSUS Updates - Best Practice

  - by What'sTheStoryWishBone

  We have an isolated enviornment of a few hundred servers in which we use WSUS to push updates too. We have thousands of updates which to manage and push to devices testing along the way to ensure the update will not break anything. What are the best practices that you all follow in your enteprise networks to ensure an update does not go out to all the machines that will break something? We currently have ours broken into customized groups for each type of machine. There is one "Test Group" which has one PC of each type which we apply updates to for error checking. Is this a similar procedure others follow or is their an easier safer way to manage the thousands of WSUS updates?

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• "bin/sh: can't access tty; job control turned off” error when running shellcode"

  - by Nosrettap

  I'm writing shellcode to exploit a buffer overflow vulnerability on a server. To do so I have port binding shellcode that I send to the server and then I run (from a linux terminal) the command telnet serverAdress 4444 where 4444 is the port which I have opened up. The hope is that I will receive a shell back that I can use to execute commands. However, I always end up with the command bin/sh: can't access tty; job control turned off I can't change any of the server code, and I believe the shellcode is correct because I got it from this website (http://www.tsirogiannis.com/exploits-vulnerabilities-videos-papers-shellcode/linuxx86-port-binding-shellcode-xor-encoded-152-bytes/). From my research, it appears that this may have to do with the mode that my terminal is running in (something called interactive mode...or something like that). All computers involved are linux machines and the machine that I am on is running the latest version of Ubuntu. Any ideas what this job control error means and how I can fix it?

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