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Re: some ports closed in Fedora

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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°


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