To find out all the running process of specific port, just use the following command with option -i. The below example will list all running process of port 22. # lsof -i TCP:22 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 1471 root 3u IPv4 12683 0t0 TCP *:ssh (LISTEN) Read more…
The below command will display the list of all opened files of user root # lsof -u root COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 1838 root cwd DIR 253,0 4096 2 / sshd 1838 root rtd DIR 253,0 4096 2 / sshd 1838 root txt REG 253,0 Read more…
In the below example, it will show long listing of open files some of them are extracted for better understanding which displays the columns like Command, PID, USER, FD, TYPE etc. Sections and it’s values are self-explanatory. However, we’ll review FD & TYPE columns more precisely. FD – stands for File descriptor and may seen some of the Read more…