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Filer Administration Basics 2-35
6. Specify up to five time servers by entering the following command:
options timed.servers
servers
servers
is a list of the host names or IP addresses of up to five time servers,
separated by commas.
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The following options to the
options
command help maintain filer security:
The
telnet.hosts
option restricts
telnet
access to a limited number of
hosts. Use this option to specify a comma-separated list of up to five hosts that
can log in to the filer using
telnet
. Alternatively, you can disable
telnet
for all
hosts by specifying a hyphen (-). By default, the option argument consists of an
asterisk (*), which means all hosts have
telnet
access.
A record of all
telnet
and console logins is maintained in the
/etc/messages
file
on the root volume.
The
mount_rootonly
option restricts the mount privilege to root using privi-
leged ports (ports 1 through 1,024). By default, the option is enabled. This option
accepts the arguments
off
and
on
to disable and enable it. This option is applica-
ble only if your filer runs NFS.
NOTE: Some PC clients and some older implementations of NFS on UNIX worksta-
tions use non-privileged ports to send requests. If you have these clients at your site,
disable the
mount_rootonly
option or upgrade the client software.
The
wafl.root_only_chown
option enables only root to change the owner of
a file. When the option is disabled, the owner of a file can change its ownership
without being root. By default, this option is enabled. Use the arguments
off
and
on
to disable and enable the option.
When a non-root user changes the owner of a file, the set-user-id and set-group-
id bits are cleared. If a non-root user tries to change the owner of a file but the
change causes the files recipient to exceed his or her quota, the attempt fails.
This option is applicable only if your filer runs NFS.