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.

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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 ...
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1answer
379 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
283 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
464 views

Openvz IPV6 Question

Is it possible to assign a /64 range of ipv6 ips to an openvz container?
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2answers
935 views

Sharing disk volumes across OpenVZ guests to reduce Package Management Overhead

Is it feasible to create a single "master" OpenVZ guest who would only be used for package management, and use something like mount --bind on several other OpenVZ guests sort of trick them into using ...
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3answers
1k 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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3answers
5k views

How to mount glusterfs inside a OpenVZ container?

glusterfs uses fuse to mount a glusterfsd volume, wich works fine on any hardwarenode without virtualization. But, I now try to mount the device inside a container glusterfs --debug -f /etc/...
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1answer
209 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 0....
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1answer
306 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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2answers
783 views

Tuning OpenVZ Containers to work better with Java?

I have a 8 GB RAM Server (Dedicated) and currently have KVM Virtual Machines running on there (successfully) however i'm considering moving to OpenVZ as KVM seems a bit overkill with a lot of overhead ...
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1answer
495 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 ...
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1answer
429 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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3answers
492 views

dedicated server virtualization, xen or openvz?

I am putting a new server in a datacenter for company use and my company website. I use a lot of VPS accounts and in that world the choices are xen or openvz. I will be using virtualization on my ...
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1answer
562 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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2answers
558 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
313 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
2k views

Should I choose KVM/XEN over OpenVZ or use them together?

I've got a dual xeon e5504 server, with [for now] only 8GB of ram. Storage is'n impressive either: 3x 146GB sas in raid5 + 500GB sata drives. Currently it works as a development server, but it's over ...
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1answer
157 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 ...
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1answer
286 views

Find ddos attack on OpenVZ container [duplicate]

How do you figure out which OpenVZ contain is under attack from a dDoS? I know it is an attack because the b/w and incoming traffic shot WAY up. Can this be done with netstat? Are some attacks not ...
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3answers
194 views

install and config openVZ [closed]

I want to install OpenVZ on my server(fedora10), and then assign a block of ips to each of the vps. I have a moderate amount of linux knowlege, how much effort is involved to setup what I just ...
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1answer
296 views

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.
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1answer
298 views

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 ...
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2answers
2k views

Issue on yum update with kernel

--> Running transaction check ---> Package e2fsprogs-resize2fs-static.x86_64 0:1.42.3-3.el6.1.ovz will be installed ---> Package kernel.x86_64 0:2.6.32-358.2.1.el6 will be installed --> ...
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1answer
631 views

Firewall blocking ssh out from a openVz container

I'm using a firewall on the HN to open/close the ports of the containers directly from the HN. I'm using the iptables script from the openvz wiki. Everything works fine but I cannot ssh out from the ...
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2answers
407 views

How to over 500000 cpuunits on OpenVZ [closed]

I have a OpenVZ and i would like to allocate more than 500000 cpu units. But the max i can set is 500000. Does he have a solution to give more power to my vm? According to all the sources I read (...
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1answer
490 views

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 ...
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1answer
483 views

CentOS OpenVZ kernel panic when mounting ext4 truecrypt volume in nokernelcrypto mode

I am experiencing kernel panic when trying to mount a ext4 filesystem which itself resides on a truecrypt volume mounted using -m nokernelcrypto option. The system is CentOS 6.3, OpenVZ Kernel 2.6.32-...
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1answer
2k views

Does our VPS have its kmemsize limit set too low?

Short Version: Are there any official guidelines on what the kmemsize barrier and limit should be set to for a container in Virtuozzo/OpenVZ intended to be used as a Web server? We've found posts ...
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2answers
171 views

Network issue migrating an VMWare guest to an OpenVZ container

I've migrated a server from vmware to openvz, both are running on the same physical host (I plan to eliminate vmware). If I give the new openvz container a new IP anybody on the LAN and outside ...
0
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1answer
681 views

Puppet provider does not install prerequisites

I have cloned a module for virtual machines, but when I try to apply a virtual machine to a node, I get Error: Could not find a suitable provider for virt, which is understandable given that the ...
2
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1answer
65 views

Can you make the /vz directory a symlink?

I have a OpenVZ VPS server with a 500GB hard drive and 240GB SSD. I'd like to have each VM's files stored on the SSD. Can I make their directory within /vz symlink to a directory on the SSD? There ...
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1answer
28 views

Are there any rules as to how IP address should be assigned to each container in OpenVZ?

I have OpenVZ running on CentOS system connected to a LAN.The internal IP address of the host machine is 192.168.2.152.Two containers have been created and the IP addresses I assigned are 192.168.0....
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1answer
147 views

OpenAFS on OpenVZ guest

I'm trying to install and configure an OpenAFS server inside an OpenVZ container. However, when running afs-newcell, it complains that the AFS client cannot be started. It says "AFS module /lib/...
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1answer
153 views

Infrastructure design recommendations for a simple proxmox setup

I am aware of the dangers of this question being non-constructive so bear in mind I did my best to narrow the possible answers I get. I am swapping an old dedicated Gentoo server for a new one, and ...
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2answers
2k views

How to increase Free PE in LVM physical volume?

I use Proxmox 2.2 for making OpenVZ containers. It ships with a tool called vzdump that can create backups of OpenVZ containers on the fly. It uses snapshot functionality of LVM to create temporary "...
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1answer
2k views

How do you enter the console of a openvz container from the host?

I lost the password for my OpenVZ container(actually I was using private key ssh but lost the file, so after setup I never logged in with root password) but I still have root access on the host ...
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1answer
337 views

OpenVZ with VSwap causes php-fpm/mySQL errors on nginx

I'm running into a rather nasty issue, and hope that anyone here can help me with a possible solution as I'm pretty much brickwalling right now. The situation: I have an OpenVZ VPS that is ...
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3answers
126 views

Is there any server virtualization software supports subdomains? [closed]

I installed openvz in my server but to create more virtual machines I need more than one ip address. But my service provider can only give one ip address for my server. Is there any software that ...
0
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1answer
558 views

How can Apache be installed in a OpenVZ container

I have OPenVZ running on CentOS and a precreated Ubuntu 10.04 OS template installed.The containers created have 2GB of disk space allocated.With this,can I have an Apache web server running within a ...
0
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1answer
149 views

apt-get authentication error in OpenVZ Debian container

Whenever I receive upgraded packages from security.debian.org, I get the following error: WARNING: The following packages cannot be authenticated! apache2 apache2-mpm-prefork apache2.2-common ... ...
4
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3answers
3k views

Java VM problem in OpenVZ

I bought a vps for hosting my java needs. But I can't run java on it. Everything about java is correctly installed but when I try to run java ("java -version" forexample) I get this error : Error ...
2
votes
1answer
632 views

Anyone using Archipel in production for managing virtual machines?

I am getting ready to deploy a new server for my company. We intend to use virtualization mainly for security but also to help with versioning and other issues. We have decided to use openvz. Now I ...
0
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1answer
749 views

OpenVZ - vzdev kernel module issue

I am setting up a Centos 6.3 minimal server with openvz that replicates to another machine using DRBD. I want all openvz data/files to be kept in a single /vz directory which is an LVM that I am ...
0
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1answer
848 views

Centos 6.3 DRBD / OpenVZ kernel/userland issue

When I start my Centos 6.3 server's drbd service I get the following error: Starting DRBD resources: DRBD module version: 8.3.13 userland version: 8.4.2 preferably kernel and userland versions ...
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1answer
1k views

Setting up bridging for Qemu and routing for OpenVZ (venet) with multiple subnets on Debian Linux

So i've been searching the past couple days trying to figure out the best way to achieve this but still can't get it figured out. I have a debian server setup running Proxmox to host OpenVZ and Qemu ...
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1answer
326 views

Proxmox server with just one public IP

Is it possible to host a proxmox server with openvz containers NATed to the public IP which hosts the Proxmox server ? I have gone through the proxmox feature list but I am somehow puzzled by the ...
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1answer
705 views

GRUB can't configure on upgraded Ubuntu OpenVZ VPS

I upgraded an OpenVZ VPS from an older Ubuntu release to 12.04LTS using the do-release-upgrade command. Ever since, all of my apt-get runs look something like this: $ sudo apt-get upgrade Reading ...
0
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1answer
371 views

openvz dual nic setup from scratch

I have a openvz server that has 2 nics I need 1 for ethernet and the other explisitly for nfs traffic. eth0 goes to the lan/internet currently doesnt have ipv6 but will be getting a static ip soon. ...
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3answers
3k views

is it possible to check CPU and RAM usage of the OpenVZ *host* machine from within a VM?

I have purchased an OpenVZ VPS from one of the hundreds of internet hosting companies. I dont pay much for it, but lately performance has been terrible. They are obviously overselling, but I am ...
4
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0answers
1k views

Enabling IPv6 with OpenVZ using Proxmox 2.2

I'm trying to enable IPv6 on my Debian nodes (OpenVZ) using venet; my host is under Proxmox 2.2 (kernel 2.6.32-16-pve), and it seems the routing fails. My host correctly pings all my nodes; all my ...