NFS Services Administrator Guide (5900-3045, March 2013)

For information on the nfs3_bsize and nfs4_bsize tunables, see nfs3_bsize(1M) and
nfs4_bsize(1M).
After the tunables have been modified, set the mount option for read and write size to 1MB, as
follows:
mount -F nfs -o rsize=1048576, wsize=1048576
Changes to the NFS Server Daemon
The NFS server daemon (nfsd) handles client filesystem requests. By default, nfsd starts over
TCP and UDP for NFSv2 and NFSv3. If NFSv4 is enabled, the nfsd daemon is started to service
all TCP and UDP requests.
If you want to change startup parameters for nfsd, you must login as superuser (root) and make
changes to the /etc/default/nfs file or use the setoncenv command.
The /etc/default/nfs file provides startup parameters for the nfsd daemon and rpc.lockd
daemon. For more information on the /etc/default/nfs file, see nfs(1M).
The setoncenv command initializes, displays, and removes the value of NFS configuration
variables found in either of the following files:
• /etc/rc.config.d/nfsconf
• /etc/rc.config.d/namesvrs
• /etc/default/autofs
• /etc/default/keyserv
• /etc/default/nfs
• /etc/default/nfslogd
• /etc/pcnfsd.conf
For more information on the setoncenv command, see setoncenv(1M).
Configuring and Using NFS Netgroups
This section describes how to create and use NFS netgroups to restrict NFS access to your system.
It describes the following tasks:
•
•
Creating Netgroups in the /etc/netgroup File
To create netgroups in the /etc/netgroup file, follow these steps:
1. If you are using the local /etc/netgroup file or the NIS netgroup map for netgroups,
add entries with the following syntax to the /etc/netgroup file.
netgroup_name (host, user, NIS_domain) (host, user, NIS_domain) ...
If you are using NIS, edit the /etc/netgroup file only on the NIS master server.
2. If you are using NIS to manage your netgroups database, enter the following commands
on the NIS master server to generate the netgroup, netgroup.byhost, and
netgroup.byuser maps from the /etc/netgroup file, and push the generated maps to
the NIS slave servers:
cd /var/yp
/usr/ccs/bin/make netgroup
A netgroup can be used in most NFS and NIS configuration files, instead of a host name or a user
name. A netgroup does not create a relationship between users and hosts. When a netgroup is
Configuring and Using NFS Netgroups 41