Please advice, I have cable coming out from my physical router which has public IP and all communication allowed by my ISP.
I connected this cable to physical NIC in vSphere host. I created standard vSwitch and created from that NIC its upload link.
I created 4 samples VMs.
My question - if one of those sample VM is for example SMTP server, what should I do so that connection on port 25 from internet goes only to VM with SMTP server?
Many thanks for your advice