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.

learn more… | top users | synonyms

1
vote
1answer
129 views

VPS Node and top -c

When using and viewing top -c with openvz does the CPU usage and everything include usage for everyone else on the system or just you? I've been watching my VPS node for awhile now and I've seen ...
0
votes
1answer
106 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 ...
2
votes
1answer
372 views

I want to run MongoDB on OpenVZ, but crashes expected — what can I do about it?

My Server is hosted on HostEurope, a virtual server uname -a prompts Linux lvps176-28-21-237.dedicated.hosteurope.de 2.6.18-028stab095.1 #1 SMP Mon Oct 24 20:15:15 MSD 2011 x86_64 GNU/Linux They ...
2
votes
1answer
457 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 ...
1
vote
3answers
426 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 ...
0
votes
1answer
410 views

Translating debian network configuration to gentoo

I just got rid off Debian on my VPS (OpenVZ) and installed Gentoo on it, however it is a plain Gentoo image without further configuration, i.e. no working network. I'm not familiar with Debian and ...
-1
votes
1answer
172 views

Is there a way to run OpenVZ on a filesystem that doesn't need to fsck?

I'm running OpenVZ, and occasionally need to power cycle my host. Of course, it has to fsck every time it comes back up (ext4) Is there a way to run OpenVZ on a filesystem that doesn't have to fsck in ...
2
votes
0answers
451 views

Replacing TightVNC with alternate client (CONNECT parameter)

I am in the process of reverse engineering an existing system in an attempt to replace their existing TightVNC applet with something else (hopefully NoVNC if at all possible). So far, here is what I ...
0
votes
1answer
925 views

OpenVZ Can't initialize containers after install

I have installed OpenVZ on centos 6 on a dedicated server. I followed quick installation guide on openvz wiki. After installing thru yum, I don't know why, but grub.conf wasn't automatically updated ...
1
vote
0answers
157 views

Performing yum update on an OpenVZ host

My company runs a handful of OpenVZ servers (HN) and hosts all the server as containers on these HNs. We have done some pentest and found out we have to do update the kernel on the HNs to resolve a ...
1
vote
1answer
763 views

OpenVZ + CentOS 6.0 + Home Network [closed]

Setup a centos 6 server at home and installed openvz kernel and all working fine. My only issue is routing IPs to the containers (typing the different IPs in from another PC showed my default web ...
2
votes
3answers
1k views

NFS4 client within OpenVZ container running Ubuntu 11.10?

I have an Ubuntu 11.10 VPS running inside OPenVZ with a hosting company. I'm trying to get it to mount a remote NFS server using NFS4, but can only get it working using version 3. I've been Googling ...
3
votes
4answers
658 views

Private Cloud: Debian and OSS vs vmware vSphere, which is best for corporate use? [closed]

I'm hoping someone can shed some light regarding the current state of virtualization on Debian. Since I like my information first-hand, i thought I'd ask here for some real-world use cases. I am ...
1
vote
1answer
425 views

CentOS OpenVZ fail to boot after kernel update

After upgrading to latest OpenVZ kernel CentOS server won't boot. When i try go boot the latest kernel server is stuck at this point: (note that images are taken from virtual kvm) ...
0
votes
1answer
1k views

OpenVZ container can't reach the internet

I installed OpenVZ on my Debian 6 server which has only 1 IP. So I tried to follow this guide on the OpenVZ wiki, but alas only with partial luck. I succesfully forwarded port 8090 of the Host server ...
3
votes
1answer
1k views

permission denied for chmod as root

I need to manage a customer's openvz guest (latest debian squeeze 64 bit). Now when I try to do a chmod 0750 /root as root it gives me Permission denied. This really puzzles me, as I thought root can ...
0
votes
1answer
532 views

How to see what is causing failcnt on tcpsndbuf

I am seeing a failcnt on my tcpsndbuf by looking at the user beancounters. How am I able to see what is causing this failcnt? I am experiencing problems with my server and I think that it is as a ...
1
vote
1answer
2k views

Jenkins (JVM) crashes after few minutes after start

Host OS: OpenVZ host Guest OS: Debian 6.0 minimal Java: java6 sun Servlet container: Winstone Jenkins for debian: http://pkg.jenkins-ci.org/debian/ Jenkins version: 1.449 uname -a: Linux hostname ...
1
vote
0answers
170 views

auto add ip to containers using openvz commandline

looking to script some container creation. Is there a way to use the PBAS auto add ip function at the node's command line? Something like this. vzctl set CTID --ipadd AUTO_IP_ADDY --save I could ...
3
votes
2answers
1k views

How to properly set CPU Units for OpenVz VEs

According to all the sources I read (openvz wiki, various mailinglists, forums, ..) the values of the cpuunits settings are relative to each other. So when all are equal and the system is busy, all ...
8
votes
1answer
2k views

Is LXC secure enough for VPS hosting?

Right now I'm using Linux VServer for VPS hosting. But it's lacking some functionality I need (ex. cpu usage virtualization, quota support for guests, etc.) so I'm thinking about switching to OpenVZ ...
0
votes
1answer
58 views

How do I investigate new transaction behaviour between Mysql 5 and JBoss 4.02 inside OpenVZ?

I have moved a production server over to OpenVZ, something that I've done many times before, only this time it has impacted the transaction behaviour of certain operations. All my tables are innoDB. ...
3
votes
1answer
7k views

How can I tell who/what shutdown my CentOS VPS?

CentOS 5.7 VPS (running on OpenVZ) My VPS shut down this morning and I'm not sure why. I contacted my VPS host and they indicated that the server "was off". They powered it back on but I'm confused ...
0
votes
1answer
885 views

How to convert OpenVZ OS template to bootable image file?

My question is how to convert a pre-created OpenVZ OS template which are in tar.gz format (such as these) to an image file in order to be able boot it with other virtualization solutions such as QEMU ...
0
votes
1answer
184 views

Networking OpenVZ VEs

I've got a host with OpenVZ installed on it with several containers. I want to set up a virtual network between some of them but without having to use any physical devices but I'm new to OpenVZ and ...
6
votes
5answers
1k views

Cannot create Java VM on OpenVZ

I'm constantly encountering an error related to Java and certificates on my Ubuntu server running in OpenVZ when installing things from apt-get. I'm pretty sure it has to do with how Java allocates ...
4
votes
2answers
1k views

Advice on most fitting choice of virtualization platform: Xen | OpenVZ | KVM | other? What suits the purpose best?

I am aware of the multitude of virtualization threads here but they all seem to be oldish and i'd like to have a brand new one ready for 2012. I'm currently evaluating Xen, OpenVZ and KVM for ...
1
vote
1answer
112 views

How does OpenVZ know a VE's distribution

With OpenVZ you assign a VE's hostname (among other things) from the host node (HN) using vzctl set CTID --hostname myhost --save. It then sets this in /etc/vz/conf/CTID.conf. During startup of the ...
0
votes
2answers
151 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 ...
2
votes
1answer
2k views

What could I or my VPS provider be doing wrong? (TUN/TAP on OpenVZ)

I'm trying to setup OpenVPN on a CentOS VPS (OpenVZ). But the problem I am having has to do with enabling the TUN/TAP interface. When I purchased the VPS service, I left a note to have the TUN/TAP ...
1
vote
2answers
811 views

Oneiric's init (upstart) taking up 99% cpu on openvz

I'm having a problem with a openvz vps which came with Ubuntu Natty (11.04) and I recently upgraded to Oneiric (11.10). After a reboot I found the init process stuck at ~99% cpu and the loadavg ...
1
vote
1answer
1k views

How to install git server on debian VPS (openvz+direct admin)?

What are the risks and precaution steps when installing git server on debian VPS (openvz + direct admin) ? How to install git server properly in such environment ? I would like to use git server ...
2
votes
2answers
169 views

upgrading kernel from 2.6.27 to 2.6.32

I have an openvz server, currently running on linux-2.6.27-openvz-kiprensky.1-r1 Now, I'm upgrading server and part of the upgrade is kernel upgrade. Now, I'm offered ...
1
vote
0answers
244 views

Truncated HTML responses with OpenVZ (and nginx)

I'm running nginx in a OpenVZ container on Debian 6 and when proxying I get truncated responses. Most of the time it happens when I proxy another proxy like varnish or apache (for svn servers). I ...
2
votes
2answers
416 views

apparmor not working ubuntu 11.04 insize OpenVZ

so it seems I have everything installed, but apparmor_status gives "apparmor module is not loaded." Also some apparmor scripts check for presence of /sys/module/apparmor and it is not there... Any ...
1
vote
4answers
3k views

Stop an unstoppable openvz container

I have an openvz container that is NOT stopping with the standard vz tools. How can I kill it? I tried a VZ destory but that wont work. Thanks
2
votes
2answers
672 views

Open VZ firewall solutions

Ive got VPS running on an Open VZ virtualisation instance. Unfortunately im having a lot of trouble getting a firewall up and running. Ive tried my usual UFW and shorewall, but neither of them would ...
3
votes
1answer
257 views

Is it safe for a single directory/file to be served by two separate samba daemons simultaneously?

The situation is this: I have a Debian server which acts as a web/mail server as well as an Internet gateway for a small office. All the externally available services run on OpenVZ virtual ...
1
vote
1answer
283 views

OpenVZ with RHEL6 kernel & page cache?

After upgrading kernel from debian 2.6.32-openvz-amd64 to RHEL6 2.6.32-042stab035.1, I have problem with kernel page cache. Looks like no OpenVZ containers use page cache and now I have 10-15GB free ...
1
vote
3answers
1k views

How do I secure my OpenVZ host node?

I'm running a server using OpenVZ for a few websites. Nothing in HN except for sshd. A VM for Varnish, a VM for MySQL and a few VMs each for one website (running Apache/PHP). Now I'd like to secure ...
3
votes
1answer
6k views

OpenVPN server running on openvz. How to write iptables rule without masquerade?

I am configuring a VPS which is running on openvz as an OpenVPN server using a tun interface. I am having some trouble with the iptables rule as MASQUERADE is not available. If MASQUERADE were ...
1
vote
1answer
420 views

help to optimize container

I have an openvz node with only one container (Cpanel server). Yesterday I had many memories issues: Unable to fork: Cannot allocate memory Can someone help me to optimize my node setting ? I ...
1
vote
3answers
597 views

Very slow rm -rf on OpenVZ VPS with Debian 6 installed

I recently bought OpenVZ VPS and compared to a dedicated servers rm -rfoperation takes considerably longer to complete (about 4x - 5x longer). This is case even if there is one big file as opposed to ...
1
vote
1answer
554 views

OpenVPN routing for OpenVZ containers

I am trying to make OpenVPN tunnel accessible for all OVZ CT's running on the host. I have initialized the tunnel devise on the host server to remote VPN server. Although I have PING response from the ...
1
vote
1answer
291 views

Is there a way to pam_tty_audit on Linux OpenVZ containers?

Looks like pam_tty_audit in Linux (http://www.slashzero.com/2009/11/shell-session-logging/) could have been a great way to help figure out "what happened!" when one gets rooted. I say "could have ...
1
vote
2answers
573 views

OpenVZ: access physical server vs. accessing virtual servers

I am just playing around with OpenVZ and had no experience with virtualization before. So I have the following problems in understanding this virtual infrastructure: I have a physical Linux server, ...
2
votes
1answer
217 views

openVZ VPS spam

i have an openvz vps,, and i use to run only openvpn server.. but one day, my datacenter told me they suspended my vps because it was sending spam? well im not using smtp or stuff on my vps, its just ...
1
vote
1answer
466 views

Why isn't OpenVZ in the Linux kernel by default?

Does anyone know why OpenVZ hasn't been merged into the official Linux kernel? Right now you have to download a special kernel from openvz.org
1
vote
2answers
950 views

Moving OpenVZ /vz partition to separate drive

I've got an OpenVZ box that's running out of hard drive space. It has a single drive that contains the system and vz partitions. I'd like to install a new drive and move the vz partition to it. This ...
1
vote
2answers
218 views

Enforcing directory space limits in an OpenVZ system

I have some programs on a server (Centos4-OpenVZ) that use a directory as temp directory - but pay no attention to the size as it grows. I want to enforce a limit, such as that this folder cannot ...