root@k8s-master:/home/sangbinlee9# sudo netstat -tulnp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:35637 0.0.0.0: LISTEN 1331/containerd
tcp 0 0 0.0.0.0:22 0.0.0.0: LISTEN 1/init
tcp 0 0 127.0.0.1:1338 0.0.0.0: LISTEN 1331/containerd
tcp 0 0 127.0.0.53:53 0.0.0.0: LISTEN 472/systemd-resolve
tcp 0 0 127.0.0.1:6010 0.0.0.0: LISTEN 9379/sshd-session:
tcp 0 0 127.0.0.1:10256 0.0.0.0: LISTEN 1985/kubelite
tcp 0 0 127.0.0.1:10248 0.0.0.0: LISTEN 1985/kubelite
tcp 0 0 127.0.0.1:10249 0.0.0.0: LISTEN 1985/kubelite
tcp 0 0 127.0.0.54:53 0.0.0.0: LISTEN 472/systemd-resolve
tcp 0 0 127.0.0.1:61209 0.0.0.0: LISTEN 1312/python3
tcp 0 0 192.168.0.6:7946 0.0.0.0: LISTEN 4753/speaker
tcp 0 0 127.0.0.1:9099 0.0.0.0: LISTEN 7626/calico-node
tcp 0 0 127.0.0.1:41823 0.0.0.0: LISTEN 665185/containerd
tcp 0 0 192.168.0.6:7472 0.0.0.0: LISTEN 4753/speaker
tcp 0 0 192.168.0.6:19001 0.0.0.0: LISTEN 1353/k8s-dqlite
tcp6 0 0 :::16443 ::: LISTEN 1985/kubelite
tcp6 0 0 :::22 ::: LISTEN 1/init
tcp6 0 0 ::1:6010 ::: LISTEN 9379/sshd-session:
tcp6 0 0 :::25000 ::: LISTEN 1713/cluster-agent
tcp6 0 0 :::10259 ::: LISTEN 1985/kubelite
tcp6 0 0 :::10257 ::: LISTEN 1985/kubelite
tcp6 0 0 :::10250 ::: LISTEN 1985/kubelite
tcp6 0 0 :::32173 ::: LISTEN 1985/kubelite
udp 0 0 127.0.0.54:53 0.0.0.0: 472/systemd-resolve
udp 0 0 127.0.0.53:53 0.0.0.0: 472/systemd-resolve
udp 0 0 192.168.0.6:68 0.0.0.0: 1122/systemd-networ
udp 0 0 0.0.0.0:4789 0.0.0.0: -
udp 0 0 192.168.0.6:7946 0.0.0.0: 4753/speaker
root@k8s-master:/home/sangbinlee9# sudo netstat -tulnp | grep -E '10259|10257|10250'
tcp6 0 0 :::10259 ::: LISTEN 1985/kubelite
tcp6 0 0 :::10257 ::: LISTEN 1985/kubelite
tcp6 0 0 :::10250 :::* LISTEN 1985/kubelite
root@k8s-master:/home/sangbinlee9#
