free port in linux
free port in linux
xxxxxxxxxxnetstat -tulnap // list all ports and processesnetstat -anp|grep "port_number" // show port detailssudo fuser -k Port_Number/tcp // free the port needed# orlsof -n -i :'port-number' | grep LISTEN // get port details# sample response: java 4744 (PID) test 364u IP0 asdasdasda 0t0 TCP *:port-number (LISTEN)kill -9 PID // free portSource: stackoverflow.com
Closely Related Answers
1. See all processes listening on port 3000
xxxxxxxxxx$ lsof -i:3000# COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME │# node 18419 myUserName 20u IPv6 105280 0t0 TCP *:hbci (LISTEN)2. Kill it
xxxxxxxxxx$ kill $(lsof -t -i:3000)The port :3000 should be free. Check it again with $ lsof -i:3000 or try to start your app
Source: Grepper
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