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Finding service based on port number

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Operating Systems AIX Finding service based on port number
# 1  
Old 01-11-2010
Question Finding service based on port number
is it possible to find out which Service is running on the basis of port no which is open/listening?

Regards

Manoj
# 2  
Old 01-11-2010
If you have lsof installed you can run it as root and grep for LISTEN. E.g.

Code:
root@lcrmdb1:/root >lsof | grep ":ssh (LISTEN)"
lsof: WARNING: compiled for AIX version 5.2.0.0; this is 5.3.0.0.
sshd      209002     root    3u  IPv4  0xf100020000632398                0t0        TCP *:ssh (LISTEN)

# 3  
Old 01-11-2010
If you don't have lsof already installed you can choose this option.
Run the command netstat as root and grep it.

Code:
root@test/# netstat -an | grep LISTEN
tcp4       0      0  *.22                   *.*                    LISTEN
tcp4       0      0  *.25                   *.*                    LISTEN
tcp4       0      0  *.111                  *.*                    LISTEN
tcp4       0      0  *.199                  *.*                    LISTEN
tcp        0      0  *.657                  *.*                    LISTEN
tcp4       0      0  10.20.224.100.1801     *.*                    LISTEN
tcp4       0      0  10.20.224.100.1802     *.*                    LISTEN
tcp4       0      0  10.20.224.100.1858     *.*                    LISTEN
tcp4       0      0  10.20.224.100.1859     *.*                    LISTEN
tcp4       0      0  *.1334                 *.*                    LISTEN
tcp4       0      0  *.5555                 *.*                    LISTEN
tcp        0      0  10.20.224.100.6600     *.*                    LISTEN
tcp4       0      0  *.6000                 *.*                    LISTEN
tcp6       0      0  *.6000                 *.*                    LISTEN
tcp        0      0  *.6604                 *.*                    LISTEN
tcp        0      0  *.6605                 *.*                    LISTEN
tcp        0      0  *.6606                 *.*                    LISTEN
tcp        0      0  *.6607                 *.*                    LISTEN
tcp4       0      0  *.32768                *.*                    LISTEN
tcp4       0      0  *.32769                *.*                    LISTEN
tcp4       0      0  *.32774                *.*                    LISTEN
tcp4       0      0  *.32775                *.*                    LISTEN
tcp4       0      0  *.10000                *.*                    LISTEN
tcp        0      0  127.0.0.1.6600         *.*                    LISTEN
tcp4       0      0  127.0.0.1.33605        *.*                    LISTEN
tcp4       0      0  *.63672                *.*                    LISTEN
tcp4       0      0  127.0.0.1.36516        *.*                    LISTEN
tcp4       0      0  127.0.0.1.36559        *.*                    LISTEN
tcp4       0      0  *.44678                *.*                    LISTEN
tcp4       0      0  127.0.0.1.44299        *.*                    LISTEN

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