RE: Closing TCP ports

From: Chuck Rock (
Date: 04/13/01

From: "Chuck Rock" <>
To: <security@FreeBSD.ORG>
Date: Fri, 13 Apr 2001 13:34:57 -0500

Closing ports that have daemon's running on them to certain clients, or
closing ports that netstat -an show as closed or closed_wait?

If it's the second, I'd like to know as well, we have some servers that have
about 170 ports show in the netstat -an output as closed or closed_wait

If there's no daemon or process listed in inetd listening on a port, there's
no need to "close" it.


> -----Original Message-----
> From: owner-freebsd-security@FreeBSD.ORG
> [mailto:owner-freebsd-security@FreeBSD.ORG]On Behalf Of Nick Mazza
> Sent: Friday, April 13, 2001 1:01 PM
> To: security@FreeBSD.ORG
> Subject: Closing TCP ports
> Hey how would i got about closing tcp/ip prots on my system (telnet, ftp,
> whois)...Can someone point me in the direction of a How-To? Thanks
> Nick Mazza
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