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NTPD(8)                 OpenBSD System Manager's Manual                NTPD(8)

NAME
     ntpd - Network Time Protocol daemon

SYNOPSIS
     ntpd [-d] [-f file]

DESCRIPTION
     The ntpd daemon synchronizes the local clock to one or more remote NTP
     servers, and can also act as an NTP server itself, redistributing the lo-
     cal time.  It implements the Simple Network Time Protocol version 4, as
     described in RFC 2030, and the Network Time Protocol version 3, as de-
     scribed in RFC 1305.

     ntpd is usually started at boot time, and can be enabled by setting the
     following in /etc/rc.conf.local:

           ntpd_flags=""

     See rc(8) and rc.conf(8) for more information on the boot process and en-
     abling daemons.

     When ntpd starts up, it reads settings from a configuration file, typi-
     cally ntpd.conf(5).

     The options are as follows:

     -d          Do not daemonize.  If this option is specified, ntpd will run
                 in the foreground and log to stderr.

     -f file     Use file as the configuration file, instead of the default
                 /etc/ntpd.conf.

FILES
     /etc/ntpd.conf     default ntpd configuration file

SEE ALSO
     date(1), ntpd.conf(5), rdate(8), timed(8)

     Network Time Protocol (Version 3), RFC 1305, March 1992.

     Simple Network Time Protocol (SNTP) Version 4, RFC 2030, October 1996.

HISTORY
     The ntpd program first appeared in OpenBSD 3.6.

OpenBSD 3.6                      July 9, 2004                                1