[CentOS] Virtualisation

Centos-admin redhat at mckerrs.net
Fri Mar 2 12:49:15 UTC 2007

Stephen Harris wrote:
> I'm building a new server at home to handle most of my internal
> requirements (mail, news, dns, dhcp, backups being the biggies).  I also
> want it to host a couple of virtual servers which are allowed incoming
> connections from the internet (mail gateway, web server, ssh server);
> these are virtual so if a hacker _can_ break in then they're limited as
> to what they can see.
> At present the virtual machines are vserver instances on an old FC2 box.
> I'm wondering what people recommend for virtual servers these days?
> CentOS 4 with a vserver kernel?  Wait for CentOS 5 and use Xen?  VMware?
> (Vmware is the heavy solution, but it does mean I could host a windows
> session if I wanted to).  Or Solaris 10 and zones?
> Any thoughts?
I'd recommend openvz (http://openvz.org). It is based on redhat kernels
are has proved to be very reliable and stable for me on centos 4.4. The
Centos box does a swag of tasks, including,

openvz kernel (complete with virtual DMZ)
Vmware server
NFS server
SMB Server
courier imap (with mysql auth)
postfix (with virtual domains and mysql lookups)
squid cache
Fedora Directory Server

and it never misses a beat.



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