what are the respective services for portmapper & nlockmgr in RHEl 7.

Hi All,

Need help to know what are services related with portmapper & nlockmgr in RHEL7.
Need to stop nlockmge as a part of NFS rpc vulnerability in our environment.
Here are teh details of rpcinfo -p output:-
rpcinfo -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
100024 1 udp 54495 status
100024 1 tcp 50640 status
100021 1 udp 32769 nlockmgr
100021 3 udp 32769 nlockmgr
100021 4 udp 32769 nlockmgr
100021 1 tcp 32803 nlockmgr
100021 3 tcp 32803 nlockmgr
100021 4 tcp 32803 nlockmgr

Thanks & Regards,
Abhishek
Unix Team