Harpreet Dhaliwal <harpreet.dhaliwal01@xxxxxxxxx> schrieb: > Hi, > though this is not directly related to postgres, but i was wondering why are > most of the ports seen closed > when one does nmap scan of these ports. Whats reason can we attribute to the > fact that most of the ports in an OS are > in closed state. A port is 'closed', if no process is listen on this port. You can use 'netstat -tulpen' or similar commands to list open ports and processes which are in LISTEN state. Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknow) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°