Not really weird or anything, just amazing.

I was in an elevator in Los Angeles. I lived in Indiana at the time and was visiting my brother in LA. This was in the 70’s.

A guy got on after me, he said “Hi” and that’s it. Something about him made me interested, I asked where he was from. he said "Indiana. I asked what town and he answered the same town I was from. We compared notes and did not go to high school together, didn’t work at any of the same places, were not related to anyone and seemingly had nothing in common. We did not recognize each other from anywhere. He admitted he had the same interesting feeling when he spotted me. He said he was visiting family and had been there only a few days, I had been there a few weeks, so no travelling together.

We shook hands and parted ways. We never saw each other again since then.

How did you do this? By adding a second IP to your server or by changing the port number of the other instance?