timed(1M)                                                         timed(1M)

NAME
     timed, in.timed - time synchronization daemon

SYNOPSIS
     /usr/sbin/in.timed [-t] [-M] [-n network] [-i network] [-F]

DESCRIPTION
     The timed daemon synchronizes the system clocks on the hosts in a
     local network. It enables you to define an imaginary network-wide time
     and synchronize the time on the hosts with this network time.

     One host is defined as the master, the other hosts are the slaves. The
     master is not necessary the master for the NIS services. The master
     calculates the network time from the times on the slaves and on the
     master itself. This is then sent to all the other hosts. If the master
     fails, the slaves automatically define a new master. Entries in the
     file /etc/inet/timed allow you to control what machines may be masters
     and which slave computer times are incorporated in the network time.

     The timed daemon is activated at system startup if the TIMESYNC vari-
     able in the /etc/default/inet file has the value yes or master. If the
     TIMESYNC variable has been assigned the value master, the timed daemon
     is started as a potential master.

OPTIONS
     no argument
          Means that the timed daemon is started on a host that cannot
          become the master. If necessary, the daemon waits until a master
          is active.

     -t   Causes error messages to be output to the file
          /usr/adm/timed.log.

     -M   Is specified if the host can be defined as the master for
          network-wide time synchronization. Automatic selection of a new
          master is made only from the group of daemons started with the -M
          option. Further restrictions are possible by means of entries in
          /etc/inet/timed.

     -n network
          Is the name of a network for which time synchronization is to
          take place.

          If -n is omitted, time synchronization takes place in all the
          networks to which the host is connected.

     -i network
          Is the name of a network for which the time is not to be syn-
          chronized.






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timed(1M)                                                         timed(1M)

     -F   If a daemon is started with this option and this daemon is the
          master, the time on the master is used for time synchronization.

          This option is of particular interest if the computer involved
          can guarantee the correct time.

FILES
     /var/adm/timed.log
     /var/adm/timed.masterlog
     /etc/default/inet

SEE ALSO
     date(1), timedc(1M).









































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