Red Hat Bugzilla – Bug 620613
ntpd man page doesn't explain "-L interface" usage
Last modified: 2010-12-03 06:50:10 EST
Description of problem:
ntpd man page is out of sync.
Version-Release number of selected component (if applicable):
ntp-4.2.4p8-2.el6.i686 (from RHEL6 beta2)
Since ntpd-4.2.2, we can specify which interface not to listen
using -L [interface].
# ntpd -L
ntpd: option requires argument -L
usage: ntpd [ -46abdgnqx ] [ -c config_file ]
[ -f drift_file ] [ -k key_file ] [ -l log_file ]
[ -p pid_file ] [ -r broadcast_delay ] [ -s stats_dir ]
[ -t trusted_key ] [ -v sys_var ] [ -V default_sysvar ]
[ -L [ interface ] ] <=
[ -P fixed_process_priority ]
[ -u user[:group] ] [ -i jaildir ]
But online manual of the ntpd didn't explain about this.
-L Do not listen to virtual IPs. The default is to listen
Same issue exist on RHEL5 (BZ#619717)
This issue has been proposed when we are only considering blocker
issues in the current Red Hat Enterprise Linux release.
** If you would still like this issue considered for the current
release, ask your support representative to file as a blocker on
your behalf. Otherwise ask that it be considered for the next
Red Hat Enterprise Linux release. **
In ntp-4.2.4 the -L option doesn't accept an argument, there is a new option -I to specify which interface it should listen on.
From ntpd -h output:
Flg Arg Option-Name Description
-I Str interface Listen on interface
-L no novirtualips Do not listen to virtual IPs