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  • What's the proper way to setup a client chosen domain name?

    - by Greg
    In my web app, I'm toying with the idea of giving my user the opportunity to select a subdomain of their choosing, so they could select something like: foobar.myapp.com where foobar is their chosen subdomain. What is the proper way to go about setting up something like this? .htaccess? Have some api for writing virtual hosts? The application would still always map to one directory on my sever, I just want to give theme a custom URL.

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  • sub domains with /etc/hosts and apache for gitorious

    - by QLands
    I managed to have a local install of Gitorious. Now I need to finalize the apache integration using a virtual server but nothing seems to work. See for example my /etc/hosts file: 127.0.0.1 localhost 172.26.17.70 darkstar.ilri.org darkstar 172.26.17.70 git.darkstar.ilri.org My vhosts.conf has the following entries: # # Use name-based virtual hosting. # NameVirtualHost *:80 <VirtualHost *:80> <Directory /srv/httpd/htdocs> Options Indexes FollowSymLinks ExecCGI AllowOverride None Order allow,deny Allow from all </Directory> ServerName darkstar.ilri.org DocumentRoot /srv/httpd/htdocs ErrorLog /var/log/httpd/error_log AddHandler cgi-script .cgi </VirtualHost> <VirtualHost *:80> <Directory /srv/httpd/git.darkstar.ilri.org/gitorious/public> Options FollowSymLinks ExecCGI AllowOverride None Order allow,deny Allow from All </Directory> AddHandler cgi-script .cgi DocumentRoot /srv/httpd/git.darkstar.ilri.org/gitorious/public ServerName git.darkstar.ilri.org ErrorLog /var/www/git.darkstar.ilri.org/log/error.log CustomLog /var/www/git.darkstar.ilri.org/log/access.log combined AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript text/css application/x-javascript BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip BrowserMatch \bMSIE !no-gzip !gzip-only-text/html <FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$"> ExpiresActive On ExpiresDefault "access plus 1 year" </FilesMatch> FileETag None RewriteEngine On RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f RewriteCond %{SCRIPT_FILENAME} !maintenance.html RewriteRule ^.*$ /system/maintenance.html [L] </VirtualHost> Now, when I go with Firefox to darkstar.ilri.org it shows the default Apache screen: "It works!". but when I go to git.darkstar.ilri.org it waits for few seconds then falls to darkstar.ilri.org and the default apache page. No error is reported. If I run httpd -S I get: VirtualHost configuration: wildcard NameVirtualHosts and _default_ servers: *:80 is a NameVirtualHost default server darkstar.ilri.org (/etc/httpd/extra/httpd-vhosts.conf:21) port 80 namevhost darkstar.ilri.org (/etc/httpd/extra/httpd-vhosts.conf:21) port 80 namevhost git.darkstar.ilri.org (/etc/httpd/extra/httpd-vhosts.conf:37) Syntax OK The funny thing is that if I configure gotirious in a host called gitrepository, add 127.0.0.1 gitrepository and go with Firefox to gitrepository.. Gitorious works... But why not with git.darkstar.ilri.org? Many thanks in advance.

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  • How to disable or tune filesystem cache sharing for OpenVZ?

    - by gertvdijk
    For OpenVZ, an example of container-based virtualization, it seems that host and all guests are sharing the filesystem cache. This sounds paradoxical when talking about virtualization, but this is actually a feature of OpenVZ. It makes sense too. Because only one kernel is running, it's possible to benefit from sharing the same pages of filesystem cache in memory. And while it sounds beneficial, I think a set up here actually suffers in performance from it. Here's why I think why: my machines aren't actually sharing any files on disk so I can't benefit from this feature in OpenVZ. Several OpenVZ machines are running MySQL with MyISAM tables. MyISAM relies on the system's filesystem cache for caching of data files, unlike InnoDB's buffer pool. Also some virtual machines are known to do heavy and large I/O operations on the same filesystem in the host. For example, when running cat *.MYD > /dev/null on some large database in one machine, I saw the filesystem cache lowering in another, monitored by htop. This essentially flushes all the useful filesystem cache in guests (FIFO) and so it flushes the MySQL caches in the guests. Now users are complaining that MySQL is very slow. And it is. Some simple SELECT queries take several seconds on times disk I/O is heavily used by other machines. So, simply put: Is there a way to avoid filesystem cache being wiped out by other virtual machines in container-based virtualization? Some thoughts: Choosing algorithm for flushing filesystem cache in the kernel. (possible? how?) Reserving a certain amount of pages for a single VM. (seems no option for filesystem cache type of pages that reading man vzctl) Will running MySQL on another filesystem get me anywhere? If not, I think my alternatives are: Use KVM for MySQL-MyISAM running VMs. KVM actually assigns memory to the VM and does not allow swapping out caches unless using a balloon driver. Move to InnoDB and tune the buffer pools, dirty pages, etc. This is now considered to be 'nice to have' on the long-term as not everyone responsible for administration of the system understands InnoDB. more suggestions welcome. System software: Proxmox (now 1.9, could be upgraded to 2.x). One big LV assigned for the VMs.

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  • Glassfish V3 using up all available memory

    - by Mannaz
    I have a Virtual Server with 1GB of RAM. When i start glassfish with asadmin start-domain it instantly allocates all available memory, although i defined -Xmx128m in my domain.xml. Am I missing an option here? How can I prevent glassfish from using all free memory?

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  • Can you create ACLs with open vSwitch on XenServer 5.6FP1 without using the DVS appliance?

    - by bwizzy
    I have a pool of XenServer hosts running the Free version of XenServer 5.6 FP1. I was wondering if I change the network backend to use Open vSwitch if I can specify ACLs on individual network VIFs without needing to use the DVS appliance (distributed virtual switch) which requires an Advanced License or higher. Basically I'm looking for a way to isolate VMs on my network so that if a user had root access on the command line they couldn't access other servers they should not be able to (without using a VLAN).

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  • How to start VirtualBox using commandline?

    - by Murat Arpat
    I've VirtualBox on a Windows 7 PC and created a virtual machine for Windows XP. Here is what I want to do: Run VirtualBox Power on guest OS (named "Windows XP") Open Winword in guest OS I want to accomplish these 3 steps at once (by using a batch file for example). Any help would be appreciated. In fact I've a batch file but it does not work as I wanted: "C:\Program Files\Oracle\VirtualBox\Vboxmanage.exe" startvm "Windows XP" TIMEOUT 30 "C:\Program Files\Oracle\VirtualBox\VBoxmanage.exe" guestcontrol "Windows XP" execute --image "C:\PROGRA~1\MICROS~2\OFFICE11\WINWORD.EXE" --username xpuser

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  • L2TP and multiple interfaces on the machine

    - by Alex
    We have setup ipsec and l2tp on linux. One question came up (due to firewall management policy) is whether it's possible to have 1 virtual interface instead of one per connected client. Now we have: ppp0 serverip clientip1 ppp1 serverip clientip2 Want to have: l2tp_tun serverip serverip like with OpenVPN's tun interfaces and then to be able to push IP address and route to each client.

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  • Problem with SQL connection on virtualised machines

    - by Mike Selby
    We have just virtualised our web servers but are experiencing problems when trying to connect with the existing DB server. The error message that is being returned from the virtual machines is as follows: A connection was successfully established with the server, but then an error occurred during the login process. (provider: TCP Provider, error: 0 - The specified network name is no longer available.) Any help would be much appreciated - Many thanks in advance.

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  • How do VirtualBox Snapshots work?

    - by Edward Tanguay
    I've made three snapshots on VirtualBox virtual machine (winxp). I want to go back to Snapshot 2. If I click on "Snapshot 2" and click Start, it goes back to the current state. I can click on "Current State" and "revert to current snapshot" (unclear: what is the "current snapshot", since I have 3 snapshots), but after it is finished, I can't discern what it did exactly and when I click start, it returns to the current state. How do I go back to Snapshot 2?

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  • Windows 2008 R2 large file copy causes Hyper-V Manager to stop responding

    - by maryeileen
    I'm using the EXPORT feature in Hyper-V to move a large Virtual Machine (VM) over a 1GB network from a Windows 2008 to a Windows 2008 R2 box (200GB) and its so intense that I get the following icon on my destination Hyper-V manager: Is this expected? Is there another way to get large file across the network and minimize this intense I/O effect? Anyones else ever seen that Do Not Enter sign? The other VMs are functional but slow, but I'm guessing that is expected.

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  • How to download a url as a file?

    - by Michelle
    A website url has "hidden" some mp3 files by embedding them as shockwave files, as follows: <span class="caption"><!-- Odeo player --><embed src="http://odeo.com/flash/audio_player_tiny_gray.swf"quality="high" name="audio_player_tiny_gray" align="middle" allowScriptAccess="always" wmode="transparent" type="application/x-shockwave-flash" flashvars="valid_sample_rate=true external_url=http://podcast.cbc.ca/mp3/sundayeditionstream_20081125_9524.mp3" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed></span> How can I download the files for off-line listening? I've found two methods: 1. The StackOverflow Method Create a new local html file with just the links eg <a href="http://podcast.cbc.ca/mp3/sundayeditionstream_20081125_9524.mp3">Sunday Edition 25Nov2008</a> Open the file in the browser, right click the link and File Save Link As. 2. The SuperUser Method Install the Firefox addin Iget. (Be sure to use the right version for your Firefox version.) Tools Downloads Enter url in field. Are there any other ways?

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  • How to determine main movie DVD track before ripping via mencoder

    - by Ampp3
    Maybe there's a simple answer for this, but when looking at the files on a DVD (IFOs, VOBs,etc), is there a way to easily determine the longest/main track? I'm trying to automate the process of finding the main movie track on a DVD and am running into issues. I thought this could be done by finding the BIGGEST track (look through VTS_XX_N.VOB files, where XX is the track number, and find the track with the largest filesize (sum sizes of VOB files for that track)), but apparently that isn't correct. One DVD had track 7 as the largest track (by my method), but mencoder didn't produce the correct output with this track, but worked with track 9 instead. Am I missing something? EDIT: I've heard of the utility 'lsdvd' for getting track information, but I was hoping to avoid compiling this, and use a basic method instead (ie: what I tried above). Does anyone have any idea WHY my idea didn't work?

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  • How to remotely install Linux via SSH?

    - by netvope
    I need to remotely install Ubuntu Server 10.04 (x86) on a server currently running RHEL 3.4 (x86). I'll have to be very careful because no one can press the restart button for me if anything goes wrong. Have you ever remotely installed Linux? Which way would you recommend? Any advice for things to watch out? Update: Thanks for your help. I managed to "change the tires while driving"! The main components of my method are drawn from HOWTO - Install Debian Onto a Remote Linux System, grub legacy: Booting once-only, grub single boot and kernel panic reboot , and Ubuntu Community Documentation: InstallationFromKnoppix Here is the outline of what I did: Run debootstrap on an existing Ubuntu server Transfer the files to the swap partition of the RHEL 3.4 server Boot into tha swap partition (the debootstrap system) Transfer the files to the original root partition Boot into the new Ubuntu system and finish up the installation with tasksel, apt-get, etc I tested the method in a VM and then applied to the server. I was lucky enough that everything went smoothly :)

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  • Ubuntu 10.04 Windows2003 adding a route for GPO assignment

    - by David Carvalho
    I want the PC's that receive IP from my Ubuntu DHCP3-server to be able to retrieve the GPOs that are on my windows 2003 server. I'm using virtualbox and 3 virtual machines: 1 windows 2003 server 192.168.0.2 with 1 NIC (internal network). 1 ubuntu server 10.04 lts 192.168.0.1 with 1 NIC (internal network) and 3 aliases 192.168.21.0, 192.168.22.0, 192.168.100.0 1 Windows XP machine with 3 NIC's (internal network).

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  • PC cannot ping another PC on my home network

    - by Mike C.
    Hello, I am running Windows 7 on my PC, and I am running a Windows 2008 Server VM in Windows Virtual PC. Both machines have network connectivity. However, I cannot ping the VM from the host neither by computer name nor IP. I can ping the host machine from the VM both by computer name and IP. Is there something I need to enable on the VM to allow it to be seen by other machines on my network? Thanks!

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  • Running 1 DC physically and a second virtually

    - by stead1984
    I plan to create my first DC and forest on a physical server, then I want to run a second DC on a virtual server that will replicate the first DC. I understand that this will provide redundancy for AD that if the first domain controller went down the second would resume until the first is back online. Would this work and how?

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  • how to install Wimax Dongle over Ubuntu?

    - by Mosh
    i have Asus Wimax Dongle and it has an Independence software from the Asus company requires user name and password and its running will over windows 7 now i've tried ubuntu 10.10 but nothing happens when i plug the dongle into usb. in windows if you plugs it for the first time, an application wizard begins and you can find a virtual cd in my computer but i cant find it in Ubuntu now i would install it over ubuntu, how? toast for all

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  • Is it a very bad idea to create disk image of mounted disk?

    - by Maciek Sawicki
    I would like to backup my server. For example using dd: dd if=/dev/md0 of=/some_network_share I wonder if this image will be vary inconsistent if /dev/md0 is mounted? Would it be possible to convert such dd image to vdi drive and create working virtual machine? Using this command for example: VBoxManage convertfromraw ImageFile.dd OutputFile.vdi Network traffic is disabled on firewall (there is only connection to/from one remote machine where image is copied).

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