If you have been working on VMWare's ESX server and been missing your GUI environment, and finding yourself lost on how to make changes to the server's firewall to open a custom port etc, here is your help!

In this example, lets say you want to open up port 3052 and 6547 UDP and TCP

- Log on to the ESX server using SSH

- To see all the current firewall entries give the command "esxcfg-firewall –q"

- To open the required ports give the following commands one by one without the quotes:

“esxcfg-firewall -o 3052,udp,in,FriendlyNameToRecognizeTheRule”
“esxcfg-firewall -o 3052,udp,out,FriendlyNameToRecognizeTheRule”
“esxcfg-firewall -o 3052,tcp,in,FriendlyNameToRecognizeTheRule”
“esxcfg-firewall -o 3052,tcp,out,FriendlyNameToRecognizeTheRule”
“esxcfg-firewall -o 6547,tcp,in,FriendlyNameToRecognizeTheRule”