Re: nmap -sT and open ports from a friends
He has no firewall (like me) as he's saying a firewall is nothing good
and not usefull but there's an open X11 server available in the
internet.
A firewall is one of the best things you can have and should always run.
Isn't this vulnerable without a firewall ?
Yes. Both of you should setup iptables with a minimal set that either
denys certain ports, or better yet, blocks-all and only allows-specified.
Mark-Walter@t-online.de wrote:
Hi,
this is the nmap -sT scan from a friend:
nmap -sT internet_address
Port State Service
25/tcp filtered smtp
46/tcp open mpm-snd
80/tcp filtered http
119/tcp open nntp
445/tcp filtered microsoft-ds
1080/tcp filtered socks
6000/tcp open X11
6346/tcp open gnutella
He has no firewall (like me) as he's saying a firewall is nothing good
and not usefull but there's an open X11 server available in the
internet.
Isn't this vulnerable without a firewall ?
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Nate Sanders nate@ima.umn.edu
Associate Systems Manager (612) 624 - 4353
http://www.ima.umn.edu/
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Institute for Mathematics and its Applications
University of Minnesota
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Minneapolis, MN 55455-0463
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