ss -lntp | grep 111
LISTEN 0 128 *:111 *:* users:(("rpcbind",pid=816,fd=8))
LISTEN 0 128 [::]:111 [::]:* users:(("rpcbind",pid=816,fd=11))
pcinfo -p
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
systemctl stop rpcbind.socket
rpcinfo -p
rpcinfo: can't contact portmapper: RPC: Remote system error - Connection refused
systemctl disable rpcbind