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Questions tagged [openvz]

OpenVZ is an open source containerisation technology for Linux which utilities containers to run separate Linux based operating systems on a single machine. OpenVZ is typically used as it touts a low overhead, of around 1-3% of CPU, compared to virtualization technologies.

OpenVZ is an open source operating system-level containerisation which integrates with the Linux Kernel. Because of this OpenVZ can only run on Linux and can only run Linux containers which have compatible kernels. OpenVZ separates out virtual environments into "containers", which are similar to BSD Jails.

OpenVZ is not like traditional hyper-visor based virtualization technologies, such as Xen or VMware, in that is only runs a single patched Linux Kernel. This however lets OpenVZ be faster and more efficient than hyper-visor based technologies. Typically each OpenVZ container will have around 1-3% overhead of that if it were a physical machine.

OpenVZ is the basis of Virtuozzo Containers, which is commercial software distributed by Parallels Inc. OpenVZ is available under the GNU GPL v2 license.

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Setting locale in Ubuntu 12.04 (openvz)

I have a fresh installation of Ubuntu 12.04 as virtual openVZ guest. The defined locale for LC_* in basic setup is POSIX. I'd like to change this to en_US.UTF-8. So I installed language_pack_en_base and language_pack_en, ran dpkg-reconfigure locales…
Michael Ef
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Cannot make Java Package on an OpenVZ container

I'm trying to install Sun's Java SDK 7 by following the Debian Wiki instructions using java-package. But it won't work on an OpenVZ proxmox container. I'm running Debian Wheezy 7.0-2 64bit on all my environments. java-package works fine on my local…
capdragon
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How to maximize I/O on an OpenVZ VPS node?

I have an OVZ node with 46 VPSes. The SSD drive had 400Mb/s but after filling the node with VPSes the SSD drive sometimes drops to 40Mb/s. How can I prevent this from happening? Is there a way to find and suspend users who have abused their IO?
user3180
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PPTP connection gets terminated after I try to do a speedtest

my connection to pptp gets terminated when I try to do a speedtest on speedtest.net I have a vps account with centos 5 installed. It uses openvz for virtualization. on /var/logs/messages the error says: Aug 5 22:44:24 vps1 pptpd[902]: CTRL: Client…
reikyoushin
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How do I add eth0 on centos 5 that is using openvz

I have a vps account with CentOS 5 installed. It uses OpenVZ for virtualization. Now I'm trying to install pptp service (using this guide) on it. I'm currently on Step 6 but I don't see any eth0 interface on my box. I can only see lo and venet0.…
reikyoushin
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Connection on MySQL very slow between to OpenVZ CT

I created a private cloud with OpenVZ, with some CT linked by Venet. One CT hosts a MySQL server, configured to listen on 192.168.1.21 When, from an other CT, I ping 192.168.1.21, I have a ping of 0.020ms, so very fast (Thanks Venet) :) But, when I…
ScrolaWebDev
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Can't SSH to localhost

I've spotted a problem on one of my openVZ Containers. There is a tool running for managing git repositories on a server which needs to connect this server by SSH. That tool is running on the same container. I checked that I can: connect to the…
Michael Ef
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Best Guest OS for running FreeSWITCH under Proxmox

We have a lot of Asterisk systems running on dedicated machines and would like to use FreeSWITCH to replace a number of them. One of the advantages of FreeSWITCH is supposed to be that it is doing much better in a virtualized environment than…
Frank Waller
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openvz: making directory /run/shm persistant?

I just upgraded my server to ubuntu 12.04. But the last updates failed because of an error with the update of the package 'initscripts': Setting up initscripts (2.88dsf-13.10ubuntu11) ... mkdir: cannot create directory `/dev/shm': File exists dpkg:…
Michael Ef
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IPTables isn't forwarding anything

I currently have set up IPTables on my server to forward certain ports on a specific interface (venet0:1) to a second server, at a different IP. My config file looks like this: # Generated by iptables-save v1.4.12 on Sat Jun 8 08:36:54…
Eli
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NFS mount failing in OpenVZ container but working in Ubuntu

I am running a debian 6.0 open VZ container and can't get my NFS share to mount. The error I am getting is mount.nfs: mount to NFS server '' failed: timed out, giving up However, using the same exact command in ubuntu 13.04 works. The NFS share is…
Kyle
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Proxmox 2.3 don't use mount script

I am running proxmox 2.3 Since I installed proxmox on a new server I definitely can't use mount and unmount script on a container and I don't know why. Proxmox just doesn't read those scripts. Here are the 2 scripts with +x rights : [root@prox…
Florent
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OpenVZ Host Node and IPTables

Can you use IPTables on the host node or does that effect all the containers on the node? I am unsure as to if using iptables will effect all the containers below or not.
Tiffany Walker
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OpenVZ - Ubuntu 12.04 unable to enter

I've setup an Ubuntu 12.04 on OpenVZ, it's been created and appears to start up fine. When I try to enter the OS it just hangs. I've ran ps aux with the exec and it returns: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME…
Elliot Lings
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Find IP addresses with most connections on system

I am currently experiencing some attacks on my OpenVZ server (CentOS 6.3 64bit), which is saturating the public ethernet interface (currently accessing SSH via the private interface). Is it possible to display the IP addresses with the most inbound…
Justin
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