RPC服务是什么？占用端口能否关闭?

Question

netstat -tunlp

查看端口占用时发现很多rpc进程，这些进程是什么？
它们占用的端口能否关闭?

\[root@i-kuqpn95k ~\]# netstat -tunlp

Active Internet connections (only servers)

Proto Recv-Q Send-Q Local Address  Foreign Address  State  PID/Program name

tcp 0 0 0.0.0.0:2049 0.0.0.0:\*  LISTEN \-

tcp 0 0 0.0.0.0:49091  0.0.0.0:\*  LISTEN 1291/rpc.mountd

tcp 0 0 0.0.0.0:38917  0.0.0.0:\*  LISTEN 1291/rpc.mountd

tcp 0 0 0.0.0.0:55527  0.0.0.0:\*  LISTEN \-

tcp 0 0 0.0.0.0:111  0.0.0.0:\*  LISTEN 1147/rpcbind 

tcp 0 0 0.0.0.0:33649  0.0.0.0:\*  LISTEN 1291/rpc.mountd

tcp 0 0 0.0.0.0:22 0.0.0.0:\*  LISTEN 1471/sshd

tcp 0 0 0.0.0.0:44406  0.0.0.0:\*  LISTEN 1192/rpc.statd 

tcp 0 0 :::2049  :::\* LISTEN \-

tcp 0 0 :::50534 :::\* LISTEN 1291/rpc.mountd

tcp 0 0 :::50383 :::\* LISTEN 1192/rpc.statd 

tcp 0 0 :::111 :::\* LISTEN 1147/rpcbind 

tcp 0 0 :::33682 :::\* LISTEN \-

tcp 0 0 :::41781 :::\* LISTEN 1291/rpc.mountd

Answer 1

rpc相服务进程啊，你不用的化就关，否则别动它，很多服务都会用到，比如nis nfs