After long delay and difficulty I had, I finally managed to consolidate all servers & services within VMware ESX 3.5 running on top of my AMD Athlon64 X2 machine plus noguix linux acting as VMFS Datastore via NFS to keep all virtual machine images inside Celeron 1.7Ghz machine (old server).

Previously, within one physical server & one virtual machine it’s really hit the performance of my server. Everything must to be running inside this two which is too much for the server. But with ESX now, I manage to have total 7x virtual machines which running different services on different servers and different OS. I can separate Squid from Apache machine, Sendmail running on his standalone primary server while scalix waiting to get into this environment too. Same goes to DNS & DHCP services.

So, everything now running happily on my new virtual environment.