You sure sendmail isn't listening on just the loopback? Do netstat -an. Michael Martinez Unix System Administrator -----Original Message----- From: Hurley, Michael [mailto:MHurley@xxxxxxxxxxxxx] Sent: Friday, April 02, 2004 11:04 AM To: 'netfilter@xxxxxxxxxxxxxxxxxxx' Subject: RE: Re: Ports closed in spite of opening them? Yes, sendmail is listening on port 25; apache on port 443. However, I am not able to connect to them. Here is what nmap reports: Interesting ports on x.x.x.x: (The 1597 ports scanned but not shown below are in state: filtered) Port State Service 22/tcp open ssh 25/tcp closed smtp 80/tcp open http 443/tcp closed https Nmap run completed -- 1 IP address (1 host up) scanned in 235 seconds -----Original Message----- From: Antony Stone [mailto:Antony@xxxxxxxxxxxxxxxxxxxx] Sent: Friday, April 02, 2004 10:29 AM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Fwd: Re: Ports closed in spite of opening them? On Friday 02 April 2004 4:09 pm, Hurley, Michael wrote: > Trying to write an iptables script to open ports 22, 25, 80, and 443 on a > little testing box. The problem is, when I scan for open ports, 25 and 443 > report they are *closed*. Any idea what might be going on here? Do you have services actually listening on those ports? Can you connect to them from a suitable client running on the machine you did the port scan from? Regards, Antony. -- RTFM may be the appropriate reply, but please specify exactly which FM to R. Please reply to the list; please don't CC me.
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