List ports a process PID is listening on (preferably using iproute2 tools)?
You can use ss
from the iproute2 package (which is similar to netstat
):
ss -l -p -n | grep "pid=1234,"
or (for older iproute2 version):
ss -l -p -n | grep ",1234,"
Replace 1234 with the PID of the program.
I am not aware of a way using iproute2
tools. But as a workaround, you could try this one out.
lsof -Pan -p PID -i
should give you the information you are looking for.
Output
lsof -Pan -p 27808 -i
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
httpd 27808 apache 5u IPv6 112811294 0t0 TCP *:80 (LISTEN)
httpd 27808 apache 7u IPv6 112811298 0t0 TCP *:8443 (LISTEN)
httpd 27808 apache 9u IPv6 112811303 0t0 TCP *:443 (LISTEN)
I got this command from here but not sure of the exact link since I have all of them noted down in the notebook. But you could check out from there as well.
You can use netstat
for this to figure out pid of each listen process.
netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
-a, --all Show both listening and non-listening (for TCP this means established connections) sockets. With the --interfaces option, show interfaces that are not marked
--numeric , -n Show numerical addresses instead of trying to determine symbolic host, port or user names.
-p, --program Show the PID and name of the program to which each socket belongs.
Here is an example:
# netstat -anp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1507/rpcbind
tcp 0 0 0.0.0.0:51188 0.0.0.0:* LISTEN 1651/rpc.statd
tcp 0 0 0.0.0.0:1013 0.0.0.0:* LISTEN 1680/ypbind
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1975/sshd
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1763/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2081/master
tcp 0 0 127.0.0.1:27017 0.0.0.0:* LISTEN 2119/mongod
tcp 0 48 172.16.33.73:22 172.16.127.110:51850 ESTABLISHED 25473/sshd
tcp 0 0 172.16.33.73:22 172.16.127.110:51214 ESTABLISHED 24699/sshd
tcp 0 0 :::111 :::* LISTEN 1507/rpcbind
tcp 0 0 :::9200 :::* LISTEN 1994/java
tcp 0 0 :::9300 :::* LISTEN 1994/java
tcp 0 0 :::22 :::* LISTEN 1975/sshd
tcp 0 0 ::1:631 :::* LISTEN 1763/cupsd
tcp 0 0 ::1:25 :::* LISTEN 2081/master
tcp 0 0 :::59162 :::* LISTEN 1651/rpc.statd