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Old 03-11-2004, 04:25 AM   #1
00it45
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how 2 get ports having services currently running

how can i get info about ports which have assigned services running currently...

i m not talking about /etc/services since all services in it r not running all the time..

i want to get port nos of currently running processes....

thanx...
 
Old 03-11-2004, 06:19 AM   #2
michaelk
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This might be what you are looking for:
http://www.linuxgazette.com/node/view/3379
 
Old 03-11-2004, 06:22 AM   #3
jharris
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If you are checking the local machine then
Code:
netstat -an
will show you which ports have programs listening on them, and what connections you have established.

cheers

Jamie...
 
Old 03-11-2004, 07:10 AM   #4
balanagireddy
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What does the following output represent (after executing netstat -an)::
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 550173938 /alumni/ug99/satish/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 1133991145 /ug/ug2k1/ukvisesh/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 1561013187 /ug/ug2k1/jagannathan/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 3069 /var/lib/mysql/mysql.sock
unix 2 [ ACC ] STREAM LISTENING 1143529290 /ug/ug2k2/tejokrishna/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 3077 /tmp/.font-unix/fs7100
unix 2 [ ACC ] STREAM LISTENING 1752835521 /ug/ug2k/karthik/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 2147483647 /ug/ug2k/kartik/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 971993305 /ug/ug2k1/v_manoj/.elinks/socket0
unix 22 [ ] DGRAM 1191 /dev/log
unix 2 [ ACC ] STREAM LISTENING 136946490 /ug/ug2k1/ajay_bedi/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 683339046 /ug/ug2k/somesh/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 2557 /tmp/.s.PGSQL.5432
unix 2 [ ACC ] STREAM LISTENING 14796322 /ug/ug2k1/vinod_reddy/.elinks/socket0
unix 2 [ ACC ] STREAM LISTENING 1766571112 /usr/local/apache/logs/cgisock
unix 2 [ ACC ] STREAM LISTENING 428837237 /ug/ug2k1/pankaj_n/.elinks/socket0
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] DGRAM 2147483647
unix 3 [ ] DGRAM 2147483647
unix 2 [ ] DGRAM 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 2 [ ] DGRAM 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 2 [ ] DGRAM 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 2 [ ] DGRAM 2147483647
unix 2 [ ] DGRAM 2147483647
unix 2 [ ] DGRAM 2147483647
unix 2 [ ] DGRAM 2147483647
unix 2 [ ] DGRAM 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647
unix 3 [ ] STREAM CONNECTED 2147483647


udp 0 0 196.12.44.6:53 0.0.0.0:*
udp 0 0 196.12.44.6:53 0.0.0.0:*
udp 0 0 192.168.36.200:53 0.0.0.0:*
udp 0 0 127.0.0.1:53 0.0.0.0:*
udp 0 0 127.0.0.1:56798 127.0.0.1:518 ESTABLISHED
udp 0 0 127.0.0.1:56799 127.0.0.1:518 ESTABLISHED
udp 0 0 0.0.0.0:3049 0.0.0.0:*
udp 0 0 0.0.0.0:631 0.0.0.0:*
 
Old 03-11-2004, 07:14 AM   #5
SaTaN
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Try googling or man netstat Mr.Bala Nagi Reddy
 
Old 03-11-2004, 07:59 AM   #6
jharris
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Uhm, looks like you have quite a few established connections there. Try
Code:
netstat -pl
which should make things clearer. This will only show you where programs are listening. The output will include both sockets and ports.

Post the results if you want more info on them. Exactly what are you trying to find out? Or simply what's listening where?

cheers

Jamie...
 
  


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