Technical data

NFS Server
20.12 Modifying NFS Server Attributes
20.12 Modifying NFS Server Attributes
You can modify the way the NFS server works by specifying NFS server
attributes using the SYSCONFIG command. The characteristics of the NFS
server that you can modify include:
• Proxy security
• Default proxy UID
• Default proxy GID
• Maximum concurrent TCP threads
• Maximum concurrent UDP threads
To make permanent modifications:
1. If it does not already exist, create the file
SYS$STARTUP:TCPIP$NFS_SERVER_SYSTARTUP.COM.
2. Include the SYSCONFIG command to set the variables. For example:
$ SYSCONFIG -r nfs_server tcp_threads=20 udp_threads=40
3. Shut down and then restart the NFS server to make the changes take effect.
For example:
$ @SYS$STARTUP:TCPIP$NFS_SERVER_SHUTDOWN.COM
$ @SYS$STARTUP:TCPIP$NFS_SERVER_STARTUP.COM
Future upgrades or installations will not overwrite the definitions in the
TCPIP$NFS_SERVER_SYSTARTUP.COM file.
Modifying NFS server characteristics can affect NFS server performance. Be sure
you understand the impact (review Section 20.15) before making any changes.
Table 20–3 describes the NFS server attributes.
Table 20–3 Modifying NFS Server Attributes
Attribute Description
noproxy_enabled Enables the use of the noproxy_uid and noproxy_gid
attributes. If this attribute is not set to 1, proxies are required
for server access.
If the value is 0, files owned by a user that is not in the proxy
database are assumed to be owned by UID=-2/GID=-2. If the
value is 1, files owned by a user not in the proxy database are
reported to be owned by the values of the
noproxy_uid and
noproxy_gid attributes.
noproxy_uid Specifies the default UID when a user cannot be translated by
the proxy.
noproxy_gid Specifies the default GID when a user cannot be translated by
the proxy.
tcp_threads Specifies the number of concurrent TCP threads within the
server. A value of zero will disable the TCP protocol.
udp_threads Specifies the number of concurrent UDP threads within the
server. This value must not be zero.
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NFS Server 20–17