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

0
votes
0answers
93 views

How to diagnose sporadic performance issues?

I have a web application with very varying response times and can't find out what causes that. That's the (quite complicated) setup: Powerful (i7, 32GB RAM) dedicated server in a German data center, ...
0
votes
0answers
98 views

Can't run CSF on the host machine using Open VZ

I managed to configure CSF on my three VM inside OpenVZ, but when I try to run it on the host, all the VMs become unreachable. I can see that the host is been attacked, and it would be critical if it ...
1
vote
0answers
25 views

Would using containers be appropriate for a virtual lab?

So far i have been running a VM lab using virtual box, however functionally i cant see a difference between using virtualbox and a container based virtualization application, such as lxc. This is ...
0
votes
0answers
34 views

Certificate issues at OpenVZ Ubuntu containers

today I came up with the problem that certificates cannot be verified on my openvz ubuntu containers. I checked the /etc/ssl/certs folder which is readable and seems to be ok. However, when I try to ...
0
votes
0answers
140 views

Difference between OpenVZ and Parallels Virtuozzo Containers OS templates and the way how CentOS and Debian starts inside the container

I have an Parallels Virtuozzo Containers VPS with CentOS 5 OS template. I can't change the template trough the PVC Power Panel nor by asking my provider to do that. He told me that the image is the ...
0
votes
3answers
99 views

Remote access forbidden (HY000) to specific mysql client

A MySQL server is located at central.hwcharts.com; it is the master of a basic master-slave replication which replicates toward host0.hwcharts.com, located on a different physical machine which ...
0
votes
1answer
549 views

Why is OpenVZ less secure than KVM and XEN [closed]

I've read many forums and blogs and articles comparing OpenVZ, KVM and XEN. And I have seen many times that one of the negatives of OpenVZ is that its less secure. However, I have yet to see an ...
0
votes
2answers
54 views

How does vzdump treats hard links pointing out of the virtual machine?

I have an OpenVZ container containing some hard links pointing to the host file system. For example, I have run on the host ln /root/file /var/lib/vz/private/101/root/link Now I'm asking myself: if ...
1
vote
0answers
244 views

Using ufw on OpenVZ-based VPSes

I'm facing with a problem to set up ufw on Ubuntu 12.04 running on an OpenVZ-based VPS. I know there is limitations for ufw. I googled a bunch of articles how to resolve the issue (like: ...
1
vote
0answers
64 views

Ghost user in debian?

I have an openvz vps with debian, I am new to linux and the command line environment although i can setup a webserver. I have just noticed that there is a ghost user because when i execute /usr/bin/w ...
0
votes
0answers
34 views

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 ...
2
votes
1answer
74 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 ...
1
vote
0answers
58 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 ...
0
votes
0answers
66 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 ...
0
votes
1answer
60 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 ...
0
votes
1answer
106 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 ...
1
vote
3answers
282 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 ...
0
votes
1answer
88 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 ...
1
vote
1answer
185 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 ...
0
votes
1answer
144 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 ...
0
votes
1answer
108 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 ...
0
votes
0answers
30 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 ...
0
votes
1answer
113 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 ...
2
votes
3answers
465 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 ...
1
vote
1answer
556 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 ...
-1
votes
1answer
164 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 ...
0
votes
0answers
57 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 ...
0
votes
1answer
150 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 ...
0
votes
2answers
94 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 ...
0
votes
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 ...
0
votes
0answers
18 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.
0
votes
1answer
114 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 ...
0
votes
3answers
469 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 ...
2
votes
1answer
195 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 .. ...
-1
votes
1answer
31 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?
2
votes
2answers
142 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 ...
3
votes
1answer
191 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 ...
0
votes
1answer
367 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 ...
0
votes
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 ...
0
votes
1answer
128 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 ...
0
votes
2answers
215 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 ...
1
vote
1answer
209 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?
0
votes
1answer
214 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 ...
0
votes
1answer
151 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 ...
0
votes
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 ...
0
votes
0answers
269 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 ...
0
votes
1answer
122 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
votes
1answer
125 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 ...
0
votes
0answers
90 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 ...
1
vote
1answer
208 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 ...