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Description of problem: rpcbind not only listens to the tcp port 111 and UDP port 111, but to an undocumented UDP port. Steps to Reproduce: Details of the netstat command run on my test machine shows the below output. Here 'rpcbind' has opened the port 993: netstat -anp |grep rpc tcp 0 0 0.0.0.0:111 0.0.0.0: * LISTEN 4634/rpcbind tcp 0 0 :::111 ::: * LISTEN 4634/rpcbind udp 0 0 0.0.0.0:993 0.0.0.0: * 4634/rpcbind udp 0 0 0.0.0.0:111 0.0.0.0: * 4634/rpcbind udp 0 0 :::993 ::: * 4634/rpcbind udp 0 0 :::111 ::: * 4634/rpcbind unix 2 [ ACC ] STREAM LISTENING 17222 4634/rpcbind /var/run/rpcbind.sock Everytime I restart rpcbind , a new port under 1024 is opened. Why is rpcbind opening an additional port under 1024 and what is the purpose of this port?
(In reply to divya.n.gopi from comment #0) > Description of problem: > rpcbind not only listens to the tcp port 111 and UDP port 111, but to an > undocumented UDP port. > > Steps to Reproduce: > > Everytime I restart rpcbind , a new port under 1024 is opened. > Why is rpcbind opening an additional port under 1024 and what is the purpose > of this port? That port is used for remote calls...