Linux Port

abhijeetdutta · 05-09-2014, 09:54 AM

how to check particular port status used by users in linux.

say an example-

If vsftpd / named running by user XX, how do i know port 21 / 53 are using by user XX

from top -c, i can view the pid and user name.. but here i want to grep this info from port number.

Thanks

abhijeetdutta · 05-09-2014, 10:03 AM

Found one link

http://www.cyberciti.biz/faq/what-pr...en-linux-port/

Any more suggestion?

szboardstretcher · 05-09-2014, 10:13 AM

Do you mean something like:

Code:

fuser 21/tcp

(grab process number from list)

Code:

ps aux | grep 1234

username of the process is on the left

abhijeetdutta · 05-09-2014, 10:21 AM

correct.

DJ Shaji · 05-09-2014, 01:30 PM

Code:

lsof -i 4 | grep 1234

is another way to do it