rdate(8)rdate(8)NAMErdate - network date client
SYNOPSIS
/usr/sbin/rdate [-s] [-v] [network]
OPTIONS
The system date and time will be set to the median value. The time
values returned by all responding hosts will be reported.
DESCRIPTION
The rdate command is invoked at boot time to reset the system date and
time to the current network date and time. The rdate program sends a
broadcast datagram packet on the specified network or on the system
default network if no network is specified. The program will then wait
two seconds for responses. After that time, the arithmetic median of
the responses is taken.
RESTRICTIONS
In order for rdate to determine a network time, at least one of the
running hosts on the network must be running the internet time service.
Machines with their own battery-backed-up time-of-day clock may not
desire to set time in this manner.
SEE ALSO
Commands: date(1)rdate(8)