unblock port 25
Nagarjuna Rao Cherukuri
Nagarjuna_Cherukuri at infosys.com
Wed Oct 26 17:55:51 UTC 2005
Hi,
Can anyone tell me how to enable port 25 in my server? I am able to ping
to this port as local host, but it is failing when try to ping using
DNS.
[root at hydlmuk lib]# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 hydlmuk.ad.infosys.com ESMTP Sendmail 8.11.6/8.11.6; Wed, 26 Oct
2005 23:15:11 +0530
quit
221 2.0.0 hydlmuk.ad.infosys.com closing connection
Connection closed by foreign host.
You have new mail in /var/spool/mail/root
[root at hydlmuk lib]# hostname
hydlmuk
[root at hydlmuk lib]# telnet hydlmuk 25
Trying 172.25.125.203...
telnet: Unable to connect to remote host: Connection refused
My nmap output is as follows.
[root at hydlmuk lib]# nmap hydlmuk
Starting nmap V. 2.54BETA22 ( www.insecure.org/nmap/ )
Interesting ports on hydlmuk.ad.infosys.com (172.25.125.203):
(The 1528 ports scanned but not shown below are in state: closed)
Port State Service
21/tcp open ftp
22/tcp open ssh
23/tcp open telnet
110/tcp open pop-3
111/tcp open sunrpc
143/tcp open imap2
1521/tcp open ncube-lm
5010/tcp open telelpathstart
5680/tcp open canna
6000/tcp open X11
22273/tcp open wnn6
22289/tcp open wnn6_Cn
22305/tcp open wnn6_Kr
22321/tcp open wnn6_Tw
can anyone tell me how to resolve this issue?
thanks
nagarjuna
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