OpenVZ is an open source virtualization 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 other virtualization technologies.

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tmpfs is getting unmounted somehow

I have reinstalled Ubuntu 12.04 onto my OpenVZ VPS. I downloaded the teamspeak server and installed it via the instructions here. I added the line to /etc/fstab: tmpfs /dev/shm tmpfs defaults ...
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70 views

Why is a remote IP redirecting to a local server?

I've got a rack full of Linux servers that host OpenVZ containers and for some reason when I attempt to connect to a certain remote IP from inside a few of the OpenVZ containers (using telnet, for ...
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52 views

SolusVM Ubuntu 13.10 OpenVZ networking issue/bug

I currently have a server running SolusVM and using OpenVZ virtualization. I downloaded the new Ubuntu 13.10 from their official repo http://openvz.org/Download/template/precreated and installed it on ...
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54 views

Containers running on ARM

I've been doing some research and decided to implement OpenVZ since it allows each container to be isolated from other containers, unlike LXC. However, OpenVZ is still not supported for ARM ...
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53 views

OpenVZ sharing PHP5-FPM socket

I need a problem with sharing php5-fpm.sock between 2 vz containers I have 2 containers: 1. with NGINX 2. with PHP5 and PHP5-FPM Link containers over NFS I tried using: 1. mount --bind ...
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98 views

openvz / centos 6 vps yum failing with error

Installed new openvz container with centos 6.4 64bit Resolving Dependencies --> Running transaction check ---> Package kernel.x86_64 0:2.6.32-431.el6 will be installed --> Processing ...
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3answers
236 views

OpenVPN forwarding keeps redirecting me to server itself (with openVZ)

I'm trying to configure a VPN on a new virtual server, powered with OpenVZ. I took the configuration of my current VPN, which is hosted on a Xen VPS and pasted it on my new server. After many tries, I ...
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1answer
77 views

OpenVZ vSwap Host Configuration

I wish to allocate vSwap memory to my OpenVZ containers. Where does OpenVz get the vSwap memory from? If the host were to run out of physical RAM, would the host start to use its own normal swap ...
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1answer
159 views

Outbound HTTP traffic being blocked by APF - outbound filter is off

I'm using CentOS 6.4 inside an OpenVZ container. I'm trying to configure APF 9.7-2 to allow inbound SSH and HTTP traffic (only) and outbound HTTP and HTTPS traffic (don't care much if other outbound ...
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1answer
114 views

Mount a folder on OpenVZ Container

I'm struggling to get an NFS filesystem mounted on godaddy VPS. It looks like they are using OpenVZ, and I'm unable to mount an NFS filesystem share from one VPS to another. Does anyone know a way to ...
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1answer
95 views

Proxmox openvz guest can only reach node

I have a running ProxmoxVE 3.1 cluster which is up-to-date and can reach all destinations. I have installed the default debian-7 template to a node, with bridged network via a veth interface. The ...
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27 views

vzpid equivalent for LXC?

I've recently migrated my containers from OpenVZ to LXC as OpenVZ support was dropped from Debian Wheezy. I used a command called vzpid on the host machine that identified from which container the ...
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1answer
98 views

Transfer used ram to swap and free more physical ram

I have a vps with 256m physical ram and 512m swap space, I am trying to use a software that need more than 256m and less than 512m ram, so it uses swap. The problem is at some moment of the ...
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3answers
308 views

Shell access for a KVM VM

I would like to access my KVM VM with a shell. I created it via proxmox 2.3, Ubuntu 12.04 is installed on it via an official template. I would like to find the same command as vzctl enter ...
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1answer
432 views

Assigning IPs to OpenVZ containers

I have recently bought myself a physical server and I am trying to create containers which would have their IPs. The physical machine has both IPv4 and IPv6 addresses. I have accessible another IPv4 ...
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1answer
137 views

Setup IPv4 local on IPv6 VPS

I have a dedicated server running multiple IPv6 only OpenVZ containers. I want them to be able to communicate with the IPv4 internet, but I realized that isn't going to be possible with IPv6 only. So ...
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55 views

Where can I find the range of IP addresses of my container OpenVZ

I'm looking for the "range of IP addresses of my container"... Where can I find those ? /etc/network/interfaces ? ifconfig ? I don't know and I can't find any answers... I need it for this tutorial ...
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1answer
128 views

Variable host IP address in iptables rule

I am running CentOS 6.4 with OpenVZ on my laptop. In order to provide Internet access for the VEs I have to apply the following rule on the laptop: iptables -t nat -A POSTROUTING -j SNAT --to-source ...
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2answers
77 views

openVZ mount of host folder

i am trying to setup openVZ on my new server, but I am running into a problem with mounting the folders which i cant understand. It shows different files in the VZ and on the Host, despite the mount ...
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1answer
1k views

Why is Linux choosing the wrong source ip address

and what to do to let it choose the right one? This all happens inside an OpenVZ container: The Host is Debian/Wheezy with Redhat/OpenVZ Kernel: root@mycl2:~# uname -a Linux mycl2 ...
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17 views

Quota tools not working after update

Quota tools doesn't seem to work after updating from quota-3.13-1.2.5.el5 to quota-1:3.13-8.el5 on CentOS 5 running inside an OpenVZ container. repquota -a of the latest version outputs nothing.
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104 views

OpenVZ: Custom settings on container startup / Choosing the right MySQL Server

What I have: Two servers running Wheezy/OpenVZ with One MySQL container on each host master/master replicated (mysql1/mysql2) Replicated DNS on each host (dns1/dns2) different web-containers on ...
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51 views

Multicast loopback under OpenVZ?

I'm trying to configure an OpenVZ container to allow sending/receiving multicast on the loopback interface. I've done this: ifconfig lo multicast route add -net 224.0.0.0 netmask 240.0.0.0 dev lo ...
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3answers
340 views

Using Proxmox Kernel on Wheezy without proxmox system

I'm going to run two servers with OpenVZ on Wheezy. Since there are sadly no OpenVZ kernels in debian anymore I want to use the Proxmox kernel instead. I'm doing all replication with scripts I have ...
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1answer
156 views

Linux: File is not shown in ls but cannot be touched with message “File exists”

I can remember creating this file but it disapeard. But not completely: root@XXX:/etc/vz/conf# ls -al total 0 drwxr-x--- 2 root www-data 0 Okt 1 16:04 . drwxr-x--- 2 root www-data 0 Okt 1 16:04 .. ...
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28 views

Can i “service network restart” on dedi?

If i do "service network restart" Linux command on my OpenVZ VPS Dedicated Host server (i mean server where is virtual machines - VPSs thru OpenVZ hypervisor, how this can affect virtual machines?
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48 views

How to set relatime for OpenVZ VPses?

I followed the instructions here (http://www.howtoforge.com/reducing-disk-io-by-mounting-partitions-with-noatime) to setup relatime for my host node. I got an error when running the commands under the ...
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2answers
134 views

Why would you use Xen as opposed to OpenVZ for trusted Linux-only host/guests? [closed]

Every time I need to create VPSs out of one of our machines, I (re)think the virtualization technologies, and seem to end up with OpenVZ being the most suitable for performance reasons when all I want ...
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1answer
166 views

What's the expected behaviour of multiple hostname entries with different IP addresses in /etc/hosts?

I know this has been discussed in several places, but there doesn't seem to be a definitive answer yet - at least not for RHEL 6. I'm just hoping someone might be able to point to how it's working so ...
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1answer
291 views

Where is the startup script/file for an OpenVZ container? [closed]

I start my container and it has a few errors. [xxx@centosbuilder1 etc]$ sudo vzctl start 1011 Starting container... Container is mounted Adding IP address(es): 10.0.64.23 cp: cannot stat ...
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2answers
1k views

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 ...
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1answer
100 views

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 ...
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2answers
201 views

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 ...
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155 views

How to list disk space usages of all containers on an OpenVZ server?

I have an OpenVZ server with 46 containers. How do I get a list of all the containers with their corresponding disk usage?
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202 views

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 ...
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1answer
139 views

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 ...
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2answers
1k views

OpenVZ MySQL InnoDB won't start

I have a OpenVZ Server with 4GB RAM and have tried to install MySQL on several distros (Ubuntu 12.04 64Bit, Ubuntu 12.10 64Bit, Debian 7 64Bit) and I always get the same errors: 130718 6:57:27 ...
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244 views

CentOS 6 VPN or Proxy Server compatible with OpenVZ

So I tried to install an L2TP/IPSEC VPN on CentOS 6 using ipsec-tools and racoon. Unfortunately my VPS host uses OpenVZ which is apparently incompatible with IPSEC. (Of course if someone knows how to ...
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1answer
111 views

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 ...
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1answer
116 views

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 ...
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80 views

Get an OpenVZ container's cpuload realtime in a bash script

I have a bash script which uses CPU cores rather intensively. Recently my VPS was suspended due to server load. The main reason is a cron job for a bash script which checks for Wordpress plugins and ...
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1answer
174 views

Cloning OpenVZ container

I have an OpenVZ container on 1 host and I would like to clone it over to my server. both run SolusVM. I only have root access to my server and would like to host the container on my server now. Can ...
0
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1answer
626 views

OpenVPN-AS not starting

I have been trying to get an OpenVPN Access server running but I am having a lot of trouble. I have a host node running Proxmox and I would like an OpenVZ container to run the server. I have gone ...
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1answer
176 views

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 ...
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1answer
266 views

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: ...
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1answer
264 views

Two IPs - One OpenVPN instance, impossible?

I have a debian 64bit vps, OpenVZ, with perfectly working openvpn server. I have ADDITIONAL IP which I want to use on that same openvpn server and I can't make it work. It only works if I specify ...
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2answers
247 views

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 ...
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1answer
129 views

openvz containers optimization

i am trying to optimize 14 containers on 64 G.B ram , 16 Core processor based on Centos 5.9 Final 64 Bit Distribution the load average of the server up to 300 this is my memory stats # vzmemcheck ...
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3answers
348 views

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 ...
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1answer
83 views

recipient rejected in a SMTP connection from a OpenVz container [closed]

I'm facing a strange problem. I'm getting a recipient rejected on a SMTP server only from inside an OpenVZ container, while from the physical server everything works fine. Here's an example of a ...