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• no download and install progress, no error message (no text at all!) for sudo gem install merb

  - by Delirium tremens

  I'm using ruby 4.2, rubygems 1.3.5-1ubuntu2 and Ubuntu Lucid Lynx. I installed ruby and rubygems with Synaptic. Since "The gem command will output its progress while it sucks down and installs all the necessary gems for a full Merb install. " is written at http://wiki.merbivore.com/howto/installation/gems, when I type sudo gem update --system, I get: "ERROR: While executing gem ... (RuntimeError) gem update --system is disabled on Debian. RubyGems can be updated using the official Debian repositories by aptitude or apt-get." and rubygems has list, build and help commands, I'm wondering if in Ubuntu rubygems is used only for something other than downloading. If it isn't, why isn't rubygems showing any text for sudo gem install merb?

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• Locking down a server for shared internet hosting.

  - by Wil

  Basically I control several servers and I only host either static websites or scripts which I have designed, so I trust them up to a point. However, I have a few customers who want to start using scripts such as Wordpress or many others - and they want full control over their account. I have started to do the basics - like on php.ini, I have locked it down and restricted commands such as proc, however, there is obviously a lot more I can do. right now, using NTFS permissions, I am trying to lock down the server by running Application Pools and individual sites in their own user, however I feel like I am hitting brick walls... (My old question on Server Fault). At the moment, the only route I can think of is either to implement an off the shelf control panel - which will be expensive and quite frankly, over the top, or look at the Microsoft guide - which is really for an entire infrastructure, not for someone who just wants to lock down a few servers. Does anyone have any guides that can put me on the correct path?

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• Git clone on an ovh host server

  - by newben

  I want to do a git-clone from an ssh connection, on an ovh host-server, but it does not work: Here's the command I entered: git clone ssh :/ / [email protected] / www / (and all variations /. Git / www / .git, / www / .git / ... ) This is the message that I invariably get: fatal: '/ www': unable to chdir or not a git archive fatal: The remote end hung up unexpectedly Moreover, the command git clone "ssh :/ / [email protected] / ~ / forumdesthinktanks.git" responded with: Permission denied, please try again. [email protected] 's password: While the ftp password is correct. Finally, the commands git clone ssh :/ / [email protected] /. Git and git clone ssh :/ / [email protected] / ~ / forumdesthinktanks.git do not work (until the terminal's time out). I'm using a terminal from my Mac.

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• Howto update Preview.app from the command line without losing focus on OSX ?

  - by snies

  Hello, i want to update Preview.app in the background from the command line without losing focus of my current window. I know that i can use the following to open/update the view of a file, but than i lose focus to the Preview.app. open -a Preview foo.pdf I guess there might be some clever Apple Script commands to do so but so far i didn't find the right one. Alternatively i would be interested into transfering the focus back to my current app directly after the update. I need this in order to update Preview.app's view of a pdf through a vi autocmd after i update the pdf according to changes in a tex file i am editing. Here is an example of what i want to achive but using Ubuntu and evince.

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• IIS FTP service - download timeouts and restarts getting the data twice

  - by accel229

  We have an IIS FTP site on a Windows Server 2003 x64 machine. Application Layer Gateway service is disabled (so http://support.microsoft.com/kb/931130 does not apply). Windows Firewall service is disabled as well. Connection timeout for the FTP site (there is only one) is set to 1,200 seconds = 20 minutes. An external client can connect to the site, list directory contents and download small files. When a client attempts to download a large file (eg, if the download continues for 3 minutes, which is still under 20 minutes, but relatively long), the server sends all data, then the connection times out, the client issues REST / RETR commands attempting to restart the download since after the last byte (which I believe should succeed and receive exactly 0 bytes), and the server behaves as if the client tried to restart after byte 0, that is, it sends the entire file all over. Any ideas on how to fix this?

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• Error loading operating system WinXP Pro

  - by Jakesan

  So im getting the error "Error loading operating system" when the computer tries to boot to a fresh install of WinXP Pro. To get to this point, I: Shrunk the only partition with Gparted to 33GB Copied the partition to the end of the 200GB drive Enlarged the first one to fill the space Formatted the first partition to NTFS Set the first partition to boot, tagged the latter to hidden, removed boot flag This was done all under Hiren's BootCD. Now this is where it goes down the drain. I installed XP Pro SP1a from its CD, and chose to quick format the partition. Now after the OS was installed, I can't start XP without using the default menu action from Hiren's BootCD. All I am greeted with is the "error loading operating system" message. I tried to use the XP recovery to fixboot, fixmbr and bootcfg /rebuild (dont remember if the command was like this, anyway the 3 suggested commands). This did nothing. What am I missing here?

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• Solaris TCP/IP performance tuning

  - by Andy Faibishenko

  I am trying to tune a high message traffic system running on Solaris. The architecture is a large number (600) of clients which connect via TCP to a big Solaris server and then send/receive relatively small messages (.5 to 1K payload) at high rates. The goal is to minimize the latency of each message processed. I suspect that the TCP stack of the server is getting overwhelmed by all the traffic. What are some commands/metrics that I can use to confirm this, and in case this is true, what is the best way to alleviate this bottleneck? PS I posted this on StackOverflow originally. One person suggested snoop and dtrace. dtrace seems pretty general - are there any additional pointers on how to use it to diagnose TCP issues?

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• New-ActiveSyncMailboxPolicy "not implemented" on Exchange 2007 SP3

  - by Flo

  If I try to run: New-ActiveSyncMailboxPolicy Test directly in the Powershell, it asks me if im sure, and if so, it does what it should. But if I try the same from my example Code in C#, then I get an error, saying that "the current host does not implement it". Other Commands like Set-CASMailbox or Get-ActiveSyncMailboxPolicy work just fine, both in the powershell and my application. The Exchange Server/Windows Server 2008R2 and Domain are all setup completely new (test-environment). Is there a way to make this possible?

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• Getting error while running apt-get update

  - by pradeepchhetri

  I am getting the following error while running apt-get update on all of the servers. W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AA6247928553 W: Some index files failed to download, they have been ignored, or old ones used instead. The solutions available are: To login into each of the server and run the following command to import the gpg key for that repo. sudo gpg --keyserver hkp://subkeys.pgp.net --recv-keys 8B48AA6247928553 sudo gpg --export --armor 8B48AA6247928553 | sudo apt-key add - But this requires logging into all of the individual servers and run the above two commands. I am looking for a way to correct by working on apt-repo server. Is there any way to do that.

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• esx 4 - c7000 - cisco 3020

  - by gdavid

  I have 4 blades with esx 4 installed in a HP c7000 enclosure. They have 6 cisco 3020 for hp switches in the backend. The plan was to use 2 switches for iSCSI traffic and the other 4 for data traffic. I am having a problem trunking the switches to our existing environment. The documentation i keep finding online has commands/features that are not available on the 3020 switch. Does anyone have this setup anywhere? I am looking to do Virtual Switch Tagging (VST) so i can control the machines vlan via the port groups. The only time any configuration worked for us was when our network team placed the command switchport native vlan x this setup only allowed vlan x to pass traffic and only when the port group was in vlan 0. Ideas? thanks for any help. -GD

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• How do I create certificates for both ends of an stunnel connection?

  - by unixman83

  Hi. I am using stunnel to authenticate RDP (Remote Desktop) and I need to verify that a client possesses the proper credentials. So people cannot brute force into the machine. I am also using a bad (outdated) version of RDP that has security vulnerabilities, so stunnel is a must. I will preshare the necessary .pem's between machines. What are the openssl commands I need to create the right .pem files on both the client and on the server? What files need to be shared?

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• Compiling LAMP from source - apache2 error “no MPM package installed”

  - by kenny99

  Hi, I've compiled LAMP from source on a Ubuntu VPS. I had to remove a previously installed version of Apache then I manually compiled all the packages, which seems to have worked up unto a point - however, when I try to run commands like "/etc/init.d/apache2 restart" I get the following error - No apache MPM package installed. I have installed mpm-prefork so I don't know why i'm getting this problem. My configure command is as follows: ./configure --enable-so --enable-modules=most --with-mpm=prefork I have deliberately not used apt-get to install anything and want to avoid this if possible. Anyone have any guidance on how to resolve this error? Thanks in advance

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• How do I create a guest ftp user and give access to specific sub-folder with SSH?

  - by gourav

  I just got a virtual dedicated server at GoDaddy. I got the Simple Control Panel. There doesn't seem to be a way to create a guest ftp user through this control panel and I was told it must be created through SSH. I have a program called Putty which can log into the server via SSH. I'm familiar with logging in but does anyone know what the commands are to be used to create a guest ftp user and give them Read and Write access to a particular folder? Regards gourav

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• How do I remove the Refresh button from the Address toolbar?

  - by Iszi

  I like being able to run commands straight from my Task Bar. So, I've enabled the Address toolbar on my new Windows 7 system - just like I had on my old XP system. However, the bar seems to have a mandatory minimum length (I've posted a separate question about that) that's a bit longer than I'd prefer. Additionally, a bit more horizontal space is consumed by a Refresh button at the end of it. This Refresh button appears similar to the Go button that used to show by default in older versions. That button was easily removed by changing a registry value that doesn't seem to exist in Windows 7. Is there a similar registry hack I can use to remove the new Refresh button?

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• Can Solaris RBAC roles be ported to Linux using SElinux only?

  - by Jimmy

  We are migrating an application from Solaris to Linux and the main user is allowed, through the use of RBAC roles, to run a few system commands like svccfg/svcadm (chkconfig on redhat). Is it possible, using only SElinux (no sudo), to allow a normal user to run chkconfig off/on (basically give it the ability to add remove services) ? My approach was to try to create an SElinux user with a corresponding SElinux role that manages the app's domain/type and is allowed to transition to all other domains required to run chkconfig, tcpdump or any other system utility usually restricted to root access only. All my attempts so far have failed, so my second question would be where could I find good documentation that applies to this specific problem ?

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• Real-Time chat translation on mac using either Skype, Adium or iChat

  - by Cawas

  If you're looking for MSN and / or Windows, just go here. I'm looking for Real-Time chat translation tools for Mac, and preferably using Adium, but it could be for Skype, iChat or maybe another option if it's really good. So far I could only easily find a plugin for Adium, simply called translator, that uses google, dicts and babelfish, but you have to type commands in and paste the words or sentences, and it's currently not even working on Snow Leopard. Even if it did, it's still not quite as automatic as we'd expect (or see in other platforms as indicated). So I'm just citing it as an example of a bad solution.

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• Why does diskpart set the volume attributes on all volumes?

  - by Nick

  I was trying to migrate a Win7 OS from a HDD to a SSD. I've created 2 partition with 1024KB offset, with diskpart: 100MB System Reserved and a 60GB for C:. I've cloned their contents using Easeus Disk Copy. I've loaded the Windows 7 Boot DVD, and wanted to use diskpart to drop the letter for the System Reserved partition and make it hidden. select volume 0 detail volume attribute volume set nodefaultdriveletter attribute volume set hidden These 2 attribute set commands actioned on both volumes (0 and 1, MSR and C:) instead of the selected one, and viceversa. I've tried to clear these attributes from volume 1, but it cleared them also from volume 0. Why does DiskPart have this behaviour?

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• Mercurial says hgrc is untrusted in Emacs, but works fine from the command line

  - by Ken

  I've got some Mercurial checkouts in a directory that was mounted by root. Mercurial is usually suspicious of files that aren't mine, but I'm the only user here, so I put: [trusted] users = root groups = root in my ~/.hgrc, and now I can use hg from the command line with no warnings or errors about anything being untrusted. So far, great. But when I try to run, say, vc-annotate in Emacs, I get an Annotate buffer that says: abort: unknown revision 'Not trusting file /home/me/.../working-copy/.hg/hgrc from untrusted user root, group root Not trusting file /home/me/.../working-copy/.hg/hgrc from untrusted user root, group root 7648'! The message area says: Running hg annotate -d -n --follow -r... my-file.c...FAILED (status 255) I don't have anything in my .emacs related to vc or hg. Other commands, like vc-diff, work fine. What am I missing here?

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• fdisk -l only displays boot partition

  - by Franklin

  I have a SAN, and it's able to read and write to the 50TB RAID just fine, but when I run fdisk -l it only lists the boot partition of the SAN server, and doesn't display anything about the other partitions on the RAID. I've also tried using parted -l with the same result. Now when I type mount it shows that the partitions are mounted just fine. I've never seen this happen. The box is running Openfiler 2.3 (I know it's old, we're in the process of upgrading all our old equipment). We have another SAN that's configured almost identically, and it's able to display the partition info with either of the two commands I mentioned above.

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• Cannot enable cron logs on Ubuntu 10.04

  - by Patrick

  I've just the following commands on Ubuntu 10.04 in order to enable cron logs. But I still don't see the file /var/logs/cron. 1. Edit /etc/syslog.conf and uncomment the line starting with cron.* 2. sudo /etc/init.d/sysklogd restart 3. sudo /etc/init.d/cron restart (I've also tried sudo service cron restart). What am i missing to do ? Also, I would like to know how can I run cron manually and not just start the service. thanks

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• Can I remove the ctrl-z key binding in my shell?

  - by Nagel

  The background for this question: I currently have to do a lot of my work in terminal over ssh, and I use screen quite a bit. Because I found the ctrl-a key binding for screen commands so annoying since I'm accustomed to using ctrl-a to go to the beginning of a line, I changed it to ctrl-z. The only problem with this is that when I'm in Matlab, think I am in Screen but am not, pressing ctrl-z will instantly kill my Matlab session, because ctrl-z is the key binding for suspending processes in *nix. So the question is: can I remove the key binding for ctrl-z in my shell so that it does no longer suspend a process? My shell is terminal.app on OSX.

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• Cannot acess the new cloned server even after new IP address assignment

  - by tough

  I was able to clone a Ubuntu 10.04 server residing in Cloud. It appeared that I was not getting some IP for the new VM so I followed some of these: # cd /etc/udev/rules.d # cp 70-persistent-net.rules /root/ # rm 70-persistent-net.rules # reboot I didn't follow the later commands as I was unable to see two eth MACs as available in the referenced site. After this I am able to see some the IP for it, and is different form the original IP, I have added new IP to DNS server. Now when I try to access it with its assigned(new) domain it is directed to the old server. I can see both the VMs running with different IP. Where I might have gone wrong, I am new to this admin thing.

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• Is LSB's init script function "start_daemon" really used for real daemons or should I stick to start-stop-daemon?

  - by Fred

  In the context of init scripts, according to the LSB specification, "Each conforming init script shall execute the commands in the file /lib/lsb/init-function", which then defines a couple of functions to be used when using daemons. One of those functions is start_daemon, which obviously "runs the specified program as a daemon" while checking if the daemon is already running. I'm in the process of daemonizing a service app of mine, and I'm looking at how other daemons are run to try to "fit in". In the process of looking how it's done elsewhere, I noticed that not a single daemon on my Ubuntu 10.04 machine uses start_daemon. They all call start-stop-daemon directly. Same goes for my Fedora 14 machine. Should I try to play nice and be the first one to use start_daemon, or is there really no point and start-stop-daemon is the way to go since everybody is already using that? Why is there no daemons using LSB's functions?

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• IDE Motherboard to Boot from a SATA 1T Hdd

  - by JavaMan

  I want to use my SATA HDD in my very old ASUS A7V8X-X motherboard (made in 2003). I intended to buy a cheap adapter for this. Say something similar to this one: http://www.cooldrives.com/satoidecofor.html But would there be any issue if I want to boot from this SATA drive? My impression is that these kind of adapters convert SATA signal and commands to PATA directly and such a low level conversion should be transparent to the motherboard and BIOS - in case the BIOS doesn't support SATA. And, for my motherboard, it sure doesn't. Does anyone ever used such a kind of adapter to support a boot drive? Any success sorry?

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• Upload a directory recursively to an FTP server

  - by Nicolas Raoul

  I am writing a Linux shell script to copy a local directory to a remote server (removing any existing files). Local server: ftp and lftp commands are available, no ncftp or any graphical tools. Remote server: only accessible via FTP. No rsync nor SSH nor FXP. I am thinking about listing local and remote files to generate a lftp script and then run it. Is there a better way? Note: Uploading only modified files would be a plus, but not required

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