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| nmap 25/tcp filtered smtp, but cant find process https://forum.linode.com/viewtopic.php?f=19&t=6849 |
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| Author: | cnolan011 [ Mon Mar 21, 2011 9:40 pm ] |
| Post subject: | nmap 25/tcp filtered smtp, but cant find process |
I can not find anything bound to port 25, but when i run nmap remotely on my server it returns the following: new-host-4:~ cnolan$ nmap xxxxxx.com Starting Nmap 5.51 ( http://nmap.org ) at 2011-03-21 21:17 EDT Nmap scan report for xxxxxx.com (xx.xxx.xxx.xxx) Host is up (0.021s latency). rDNS record for xx.xxx.xxx.xxx: li125-xxxmembers.linode.com Not shown: 998 closed ports PORT STATE SERVICE 25/tcp filtered smtp 1300/tcp open h323hostcallsc this is driving me crazy, i need to find it and shut it down i run the following: netstat -ltpn (No info could be read for "-p": geteuid()=500 but you should be root.) Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 :::1300 :::* LISTEN - thankyou for your help |
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| Author: | Stever [ Mon Mar 21, 2011 9:50 pm ] |
| Post subject: | Re: nmap 25/tcp filtered smtp, but cant find process |
cnolan011 wrote: 25/tcp filtered smtp man nmap wrote: Filtered means that a firewall, filter, or other network obstacle is blocking the port so that Nmap cannot tell whether it is open or closed.
A) "Filtered" is not a bad thing. B) There is a good chance it is your ISP filtering port 25 - try it from somewhere else. |
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