Ports and Processes

<< xorg | Index | Iptables >>

Grep for process on port

• sudo netstat -nlp | grep :* | grep 8007

Show all open ports

• sudo netstat -nlp | grep :*

Use lsof to check a port

• lsof -iUDP
• lsof | grep perl
• lsof -w -n -i tcp:34157
• lsof -p 8260 | grep TCP
• lsof -i -n | grep "65.12.77.123"

top all processes of a User

• top -U bbmb

Kill all processes found with pgrep

• pgrep httpd
• kill -9 $(pgrep httpd)

Check the port a PID is using

• lsof -Pan -p 30456 -i

pstree

• pstree

Show when PID started

• ps -eo pid,lstart,cmd | grep syslogd
• https://serverfault.com/questions/232762/linux-how-to-know-where-a-process-was-started-and-how-it-was-started