Linux Dovecot telnet 143 not able to from outside network

ganesh.bora · 10-21-2010, 07:39 AM

I am able to telnet localhost 143 and telnet ip 143 on localhost.
but from outside network am not able to telnet ip 143.

Please suggest which conf required.

Thanks in advance.

ganesh.bora · 10-21-2010, 07:41 AM

netstat -anp |grep " LISTEN " gives
tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 14923/dovecot

Noway2 · 10-21-2010, 12:03 PM

What do you mean by outside network? There is the host that the application is running on, which is localhost / 127.0.0.1. Next there is the possibility of a LAN, with addresses such as 192.168.0.1. Can you access this host from other machines on the LAN? Do you have a router / firewall in between the host and the machine your trying to communicate with? Can you ping this host from that location? If not, try running traceroute to see where the ping stops as this may be where the port 143 blockage is occurring too.