Beard at 21:22, 29 February 2016

2016-02-29T21:22:12Z

New page

<pre>
packages:
nfs-utils
nfs-common
system-config-nfs

daemons:
nfsd
mountd
rquotad

rpcbind
portmap

ports:
nfs - tcp udp 2049
mountd - tcp udp 1013 1016 default, or tcp udp 892
rpcbind - tcp udp 111
statd - tcp udp 662
lockd - tcp 32803, udp 32769

rpcinfo -p - check ports
see /etc/sysconfig/nfs under configs

mounting:
mount -t nfs -o <options> host:/path/share /mount/point
showmount <host> - shows hosts with shares or shows shares on <host>
-a - show all

/etc/fstab:
host:/path/share /mount/point nfs <options> 0 0
(use "-" for no options)
r - read only
tcp
udp (default)

block sizes - increase size for better performance. (default: 4096)
rsize=4096
wsize=4096

configuring:
exportfs -a - must run this after editing /etc/exports on the server to update the export list
configs:
/etc/exports - list of nfs shares. need to create it yourself.
/path/share host(<options>) host(<options>)
host - remote host for which share will be available. host can be hostname, address, or *.
options are similar to mount options
root_squash - maps root uid to uid of nfsnobody
no_root_squash
all_squash
no_all_squash

examples of /etc/exports:
/ master(rw) trusty(rw,no_root_squash)
/projects proj*.local.domain(rw)
/usr *.local.domain(ro) @trusted(rw)
/home/joe pc001(rw,all_squash,anonuid=150,anongid=100)
/pub *(ro,insecure,all_squash)
/srv/www -sync,rw server @trusted @external(ro)
/foo 2001:db8:9:e54::/64(rw) 192.0.2.0/24(rw)
/build buildhost[0-9].local.domain(rw)

/etc/sysconfig/nfs - has some port configurations
/var/lib/nfs/xtab - acl for nfs shares. read by mountd when nfs shares mounted.
/proc/fs/nfs/exports - list of active exports.

errors:
RPC: Program not registered - usually means nfs server not up.

</pre>

Nfs - Revision history

Beard at 21:22, 29 February 2016