rungemach

Member
Jun 13, 2010
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I am interested in using cpanel on a VM server. I have a new Centos 5.5 server running Xen 3.

Are there any issues I should look for?
Is this a supported configuration?
The installation went well. I created a PVM running a bare install of Centos 5.5. I have allocated 1 cpu, 2G ram and 100G LMV for drive space. The server seems to running great.

I plan to host for a couple of non-profits as well as my own business/company sites with static IPs for each site.

I look forward to the reply.

Robert
 

garrettp

Well-Known Member
PartnerNOC
Jun 18, 2004
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DataCenter Provider
Robert,

All of our VPSes are Xen powered and a good number of them run cPanel flawlessly. CentOS is the best choice as an OS for cPanel as well!
 

rungemach

Member
Jun 13, 2010
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I was reading that Nat can be an issue. Is that still an issue. My original test build put the host server in the DMZ and used a static nat to the public address. I didn't have a problem with the license.

What about placing a NetScaler or other load balancer in front of the Virtual host? Is that workable scenario?

Thanks

Robert
 

Spiral

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Jun 24, 2005
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Regarding your first question about Xen ---- works great!

Xen is far more stable with Cpanel than other virtualized environments

I was reading that Nat can be an issue. Is that still an issue. My original test build put the host server in the DMZ and used a static nat to the public address. I didn't have a problem with the license.
I don't really recommend running a hosting server outside a data center
environment and even more strongly don't recommend NAT translation
be used with Cpanel which doesn't officially recognize any of that.

While NAT "can" from a technical standpoint be setup with Cpanel, it is
something that really falls under "expert required" in itself and even then
is still somewhat of a management nightmare keeping everything synced
and most all of that deals with a lot of manual editing and re-editing.
 

rungemach

Member
Jun 13, 2010
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I don't really recommend running a hosting server outside a data center
environment and even more strongly don't recommend NAT translation
be used with Cpanel which doesn't officially recognize any of that.
I would agree with you completely about hosting servers outside data centers for the average person. Fortunately, I build data centers networks for a living, on the day job, its the server side that I am weak on.

I've built out a data center, small scale, at my manufacturing site. We typically place all servers in a DMZ behind load balancers and firewalls, this would include our VM and cloud hosting environments. I can do the same at the data center I have built for my use. I just hate to hang a server out solely behind a packet filter.

I built out a publicly addressed DMZ last night behind a firewall. That will resolve the issue with NATing. I will still be able to inspect packets and build ACLs for security.

Thanks

Robert
 

Spiral

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Jun 24, 2005
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Hardware firewall is fine ....

It's the NAT addressing that is the issue ;)