Re: some ports closed in Fedora

Harpreet Dhaliwal <harpreet.dhaliwal01@gmail.com> 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
--
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