Ok, so I have this email MTA server that uses the MAC Address of the server for its licensing. I just moved the server from one VM Server to another, and couldn't get the app to start. Apparently, In CentOS5.2, changing the MAC Address in the Ethernet Device - Bind to Mac Address - didn't work. Had to use these commands:
ifdown eth0
ifconfig eth0 hw ether 00:0c:29:98:1b:bb
ifup eth0
I assume if I reboot, it will change back to the "real one", but this is a virtual machine? Surely i can change this somewhere...
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Ok, I realized that when I imported the VM from the old server to the new one, if i KEEP the UUID the same, it will keep the same generated mac address. Otherwise it continues to generate a new one. I tried to manually set it within the VMX file, but just keeping the UUID the same when importing worked best.
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