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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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Port Forwarding through OpenVPN to Client on OpenVZ

Edit: Okay I will try to make this more clear. What I am trying to achieve is simply a port forward, through my OpenVZ hosted openvpn server, to a service running on a client. There are a few different services I'd like to forward, like a web…
Chev_603
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How to prevent openvz container from adding another ip address?

How to prevent openvz container from adding another ip address ? I'm using VETH Container. I used this command to configure the network : vzctl set xxx --save --netif_add ethx,,,FE:FF:FF:FF:FF:FF
Wissam Roujoulah
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managing openvz on multiple servers

I have 3 (quad core each) servers that I'm going to run a small 10 server virtual cluster on. I'm using openvz. xen and kvm aren't options. My current plan is to have a script that resides on each of the servers that I give a unique id, hostname,…
razor
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OpenVZ container(s) and NAT

I have been trying to days to solve my NAT issue with OpenVZ. I have used their guide on their website/wiki, however I just seem to be unable to get it to work. My Linux box is running on CentOS 6 (64 bit), in my own home. My router's default…
user1622951
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Trunk vlans inside openvz container (Proxmox)

I have a node running OpenVZ CT (ProxMox). eth1 on HN are bridged through vmbr1 to veth device on CT101 (eth1 inside container). (Host Node) eth1 -> vmbr1 <- veth101.1 <- eth1 (CT101) No VLANs, casual setup. Both bridge and physical interface on HN…
NStorm
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OpenVZ - SMTP - telnet - Connection timed out

I have problem with SMTP in my OpenVZ container. I've created OpenVZ container by Proxmox on dedicated server in OVH. This container will be as mail server. So I create on "mother-server" rules to pass ports to container (IP:…
IceManSpy
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Proxmox Console to OpenVZ Container has two login shells

I am using ProxmoxVE. Proxmox is running in Stand Alone Mode. I have a variety of CentOS 7 containers running. When I try to use the "Console" button to login to the machine I am presented with two login prompts, which interfere with each other and…
mrkmg
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Tracking user activity in openvz container?

I have been trying to figure out a way to track user activity in an openvz container for a long time now (auditd like in KVM's). This is a PCI-DSS requirement. I can't seem to find any good alternatives. I was hoping someone out there was using…
Ryan Bick
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OpenVZ containers will not start after a reboot

vzctl start 192 Dump file /vz/dump/Dump.192 exists, trying to restore from it Restoring container ... Opening delta /vz/private/192/root.hdd/root.hdd Data cluster 1112 beyond EOF, vsec=47137... FATAL Error in ploop_check (check.c:547): Fatal errors…
Jason
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OpenVZ : live migration fails

I can't launch live migration of OpenVZ container between two proxmox nodes... Feb 05 03:30:27 starting migration of CT 102 to node 'madrid' (xx.xx.xx.xx) Feb 05 03:30:27 container is running - using online migration Feb 05 03:30:27 starting rsync…
Yohann Prigent
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100% memory usage--is it Virtuozzo?

I have inherited a server that is a Virtuozzo guest. I just noticed that /usr/bin/free is reporting 100% or near-100% memory usage; no shared, no buffers, no cache: # free -m total used free shared buffers …
jhs
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Run 'rng-tools' in OpenVZ container

I have a problem with run 'rngd' inside OpenVZ container: root@server:~# rngd -r /dev/urandom unable to adjust write_wakeup_threshold: Permission denied Is it possible to run an application in another way? Thanks to all!
init0
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OpenVZ Container Restart

I'm wondering if there are any public scripts to automatically restart OpenVZ containers on certain load amount / high cpu. Trying to limit my containers on my personal machine, thanks.
user44754
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MySQL 5.6.21 on Debian 7.7 -- nice is automatically set to 19 several seconds after starting it up; can't figure out why

I'm running MySQL 5.6.21 on an OpenVZ VPS with Debian 7.7. MySQL is installed from the DotDeb repository (full version number is 5.6.21-1~dotdeb.1). Whenever the MySQL server is started or restarted, at first its niceness is 0. However,…
Justin L. Franks
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Share /etc/hosts between root machine and containers

I have a Centos machine with OpenVZ containers. For each container I have an alias in /etc/hosts. I would like to be able to share the /etc/hosts between the root and the containers. Is there a way to do it? Thanks.
Vojtěch
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