Brian Long wrote:
If you don't use FQDN in the HOSTNAME variable, then the following
commands will not work as intended:
hostname
hostname -s (supposed to return short hostname)
hostname -f (supposed to return FQDN)
If $HOSTNAME is set to the short hostname, hostname -f will not return
FQDN.
They work for me on RHEL4, RHEL5 and Fedora 8 :-)
hostname -s and hostname -f both resolve whatever gethostname(2) returns
using gethostbyname(3). If your /etc/hosts is wrong (that is, the
official host name, the fqdn, isn't first) or your DNS doesn't work then
you'll be in trouble, but apart from that everything is fine with those
commands.
jch
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