Controls which hosts the server will respect the root user on. If a client
is not on the list, even if it can mount the share read-only or read-write
the NFS server will treat the root user on client as the
Anonymous User.
Hosts can be specified in the following ways :
- Hostname or IP address (like ftp.foo.com or 1.2.3.4)
- Matches the host with the given name or address
- Netgroup (like engineering)
- Matches any host that is a member of the netgroup
- DNS domain (like .foo.com)
- Matches any host in the domain
- Network (like @10.254.1)
- Matches any host in the network
- Network/netmask (like @10.254.1/24)
- Matches any host in the network
In addition, any of the above notations can be prefixed by a -,
meaning that the host, netgroup, domain or network is not allowed
to mount this share. This can be useful for allowing access by a set
of hosts, but denying one member.