Red Hat Enterprise Linux 5 Administration Unleashed

Network File System 297On the Basic tab, specify a directory to share, configure the allowed clients, and selectwhether the clients should be allowed read-only or read-write access.The IP address range for the allowed clients must be in one of the following formats:. Specific IP address or hostname: Provide the IP address, the fully qualified domainname (FQDN), or hostname of the allowed client. If the FQDN or hostname is used,the server must be able to resolve it to an IP address.. FQDNs specified by wildcards: Use the * or ? special character to list a set of FQDNssuch as *.example.com. Dots are not included in the wildcard. (Note: Wildcards cannot be used with IP addresses.). IP networks: Specify an IP network with its network netmask or the number of bitsin the netmask such as 192.168.1.0/255.255.255.0 or 192.168.1.0/24.13. Netgroups: Specify an NIS netgroup such as @example_group_name.NOTEAs the NFS server options are discussed, the corresponding option in the/etc/exports configuration file is provided in brackets such as [option].As shown in Figure 13.3, the General Options tab allows the administrator to configurethe following options:FIGURE 13.3NFS General Options. Allow connections from port 1024 and higher: By default, the NFS server requiresroot privileges to start, stop, or modify. If this option is selected, a user other thanroot can start the server. [insecure]. Allow insecure file locking: Lock requests are not required. [insecure_locks]. Disable subtree checking: By default, NFS performs a subtree check, meaning thatif a subdirectory is shared, but the entire filesystem isn’t, the server verifies that the