OpenVZ is an open source operating system-level virtualization 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 ...
0
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1answer
45 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
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0answers
38 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 ...
2
votes
0answers
37 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 ...
2
votes
0answers
129 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
0answers
35 views
OpenVZ server crashes after start of container
So I used vzdump --restore to restore a container from another server, seemed to work fine. Everything seems to be there, I compared vz.conf with another one I made on the box, but...
When I run ...
0
votes
1answer
21 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. ...
2
votes
1answer
167 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
84 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
80 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 ...
2
votes
2answers
175 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 ...
3
votes
2answers
385 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
47 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
1answer
35 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
votes
0answers
45 views
SUSE virtual container under OpenVZ Debian host
i try to install opensuse OS image which downloaded from official OpenVZ site, but i have some problems after creating vm. My host under Debian Squeeze, my kernel is 2.6.32-5-openvz-amd64 and here is ...
0
votes
0answers
32 views
What is the equivalent of kmemsize on ubuntu?
On CentOS there is a limited amount of memory called Kmemsize which is eaten by etherent connections. This used to be the bottleneck for my connections to memcache and databases.
My question is ...
2
votes
1answer
106 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
316 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
334 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
70 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
68 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 ...
0
votes
2answers
83 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 ...
0
votes
2answers
123 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
0
votes
0answers
32 views
cgroup on a Virtuozzo/OpenVZ host
Searching with google I couldn't find an answer.
My Hosting provider is using Virtuozzo or OpenVZ, in my vhost I installed Debian stable, I would like to use cgroup to manage some resource hungry ...
1
vote
1answer
88 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
108 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 ...
0
votes
0answers
39 views
OpenVZ VEs do not restart properly after host reboot
I’m the administrator of two Debian servers running OpenVZ. Today there was a kernel update available for both machines. So I installed the new kernel and restarted the host. After the restart I could ...
1
vote
1answer
121 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
167 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 ...
1
vote
1answer
544 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
78 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 ...
0
votes
3answers
165 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
112 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
65 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
80 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
78 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 ...
2
votes
1answer
141 views
Why isn't OpenVZ in the Linux kernel by default?
Does anyone know OpenVZ haven't been merged to the official Linux kernel?
Right now one have to download a special kernel from openvz.org
1
vote
2answers
180 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
69 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 ...
2
votes
1answer
112 views
How to limit memory for VE on openvz
I need to configure only one vps in a openvz node. The node will have only one vps.
I need help to configure the memory limits correctly.
The node have 4GB memory with 4GB swap.
I would like to ...
1
vote
1answer
261 views
running mongodb with openvz
Has anyone had any luck getting mongodb working on openvz?
Was looking for some tips, tricks, hacks to get it from running out of memory
I am running on centos on media temple and the servers just ...
2
votes
0answers
36 views
VE not stopable
One of my VEs sometimes stops working.
I cannot reach it via HTTP, FTP or SSH, I only can enter it per vzctl enter X
All tries to restart the VE result in a 'Operation timed out', even if I try ...
1
vote
2answers
130 views
Block OUTGOING port 25 traffic from specific IPs on openvz host
I have a server running CentOS 5.5 and acting as an OpenVZ host. One of the containers has been sending out spam and I need to block his ability to connect to outbound port 25. I've looked at ...
1
vote
0answers
175 views
Openvz VE issues after upgrade
i'm running openvz on ubtunu Lucid (kernel 2.6.32.28-openvz-pae).
the templates i used are ubuntu 10.04 ones.
i tried to upgarde one of my two VEs from 10.04 to 10.10.
The process was broken (the ...
1
vote
2answers
180 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 ...
1
vote
1answer
82 views
openvz node with only one vps
I have an openvz server with 2Gb ram and would like to configure a vps for use all server resources (no swap).
I run:
vzsplit -n 1 -f vps1 -s 0
and have this setup:
Configuration file generated by ...
6
votes
1answer
148 views
ip6tables on openvz
We have set up IPv6 networking on openvz using bridged veth devices.
The IPv6 traffic to and from the VEs works fine.
ip6tables works on the HN and iptables work on the VE.
Inside the VE we can set ...
1
vote
1answer
107 views
Should I use lightttpd or nginx for an ubuntu VPS?
I'm working on setting up a VPS, and I'm not about to go with slow apache. I'm looking into lighttpd and nginx, but I don't know which one to go with.
I'm running Ubuntu 10.04 on an OpenVZ VPS
My ...
0
votes
1answer
63 views
configure Cpanel Openvz container
I need to config a cpanel openvz container.
I know how to configure standards containers but I would like to find more info a about cpanel containers, configurations tips and other info related with ...
1
vote
3answers
134 views
size lvm snapshot
I'm configuring an openvz node and would like to use lvm snapshot for backup (I do remote backup too).
The snapshot size is the same that data in the backuped partition ?
If I have a logical volume ...
2
votes
1answer
98 views
Hidden memory usage on my openvz vps
I'm on a openvz vps and I have memory thats unaccounted for. When I run free -m it says I have 156mb used out of a vps with 256mb. Cached is 0, buffers are 0, shared is 0. But when I run "ps -faux" ...
