04-07-2011
TCP/UDP port range for default AIX NFS?
May I know what is the TCP/UCP port range for any default AIX NFS? Based on rpcinfo -p, I got the following output:
program vers proto port service
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
200006 1 udp 2049
200006 4 udp 2049
200006 1 tcp 2049
200006 4 tcp 2049
100005 1 tcp 32769 mountd
100005 2 tcp 32769 mountd
100005 3 tcp 32769 mountd
100005 1 udp 32793 mountd
100005 2 udp 32793 mountd
100005 3 udp 32793 mountd
400005 1 udp 32794
100024 1 tcp 32770 status
100024 1 udp 32795 status
100133 1 tcp 32770
100133 1 udp 32795
200001 1 tcp 32770
200001 1 udp 32795
200001 2 tcp 32770
200001 2 udp 32795
100021 1 udp 32820 nlockmgr
100021 2 udp 32820 nlockmgr
100021 3 udp 32820 nlockmgr
100021 4 udp 32820 nlockmgr
100021 1 tcp 32771 nlockmgr
100021 2 tcp 32771 nlockmgr
100021 3 tcp 32771 nlockmgr
100021 4 tcp 32771 nlockmgr
200012 2 udp 702
200012 3 udp 703
I didn't see any NFS port range in /etc/environment. In order to setup NFS behind a firewall, what are the ports/port range we should open?
Thanks.
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NFSD(8) BSD System Manager's Manual NFSD(8)
NAME
nfsd -- remote NFS server
SYNOPSIS
nfsd [-6rut] [-n num_threads]
DESCRIPTION
nfsd runs on a server machine to service NFS requests from client machines. At least one nfsd must be running for a machine to operate as a
server.
Unless otherwise specified, four servers for UDP transport are started.
The following options are available:
-r Register the NFS service with rpcbind(8) without creating any servers. This option can be used along with the -u or -t options to
re-register NFS if the portmap server is restarted.
-n Specifies how many server threads to create. The default is 4. A server should run enough threads to handle the maximum level of
concurrency from its clients.
-6 Listen to IPv6 requests as well as IPv4 requests. If IPv6 support is not available, nfsd will silently continue and just use IPv4.
-t Serve TCP NFS clients.
-u Serve UDP NFS clients.
For example, ``nfsd -t -u -n 6'' serves UDP and TCP transports using six threads.
nfsd listens for service requests at the port indicated in the NFS server specification; see Network File System Protocol Specification, RFC
1094 and NFS: Network File System Version 3 Protocol Specification.
The nfsd utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
nfsstat(1), nfssvc(2), mountd(8), rpcbind(8)
HISTORY
The nfsd utility first appeared in 4.4BSD.
BSD
March 17, 2008 BSD