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1996-02-26
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This package provides the time server and time client routines as
described in Time.memo.
The files included in this distribution are:
Makefile a standard make file
Makefile.noinstall a make file which does not install
README.1ST this file
Time.memo an explanation of network time synchronization
interex.paper paper given at HP Interex, Aug. 1992
TIME_SET a script file which manages cron
cronfile a sample cronfile
etc.inetd.conf a sample /etc/inetd.conf entry
etc.services a sample /etc/services entry
time_set.1 a man page for time_set
time_set.c source for the client time setter
timecheck.1 a man page for the time checker
timecheck.c source for the time checking program
timesrv.1 a man page for the time server program
timesrv.c source for the time server routine.
timec.c a version of timecheck.c using the DARPA "time
protocol" on TCP port 37
These should operate with all BSD hosts, UNIX and non-UNIX. The
function call "ntohl" is provided for compatibility with reverse-
byte order hosts (DEC, Sun386i).
A Makefile is provided for root to compile and install this code,
using the command:
make all
Before executing this, read over the Makefile and make any
customizations of directory path variables BIN and MAN, and
CCOPTS as needed for your system.
timesrv need only be installed on your designated time server, not on
the time clients. See Time.memo.
The cron process should be interrupted when system time is changed;
the shell script TIME_SET is provided to do this. It too must be
customized for Sun systems.
To schedule TIME_SET by cron, move the file cronfile to
/users/root/ and insert the minutes and hours of time into it,
and "crontab cronfile" . A weekly or monthly scheduling should be
sufficient.
We offer the use on an experimental basis of our time server host,
an HP9000/847S running HP-UX 8.02. Its Internet address is:
tycho.usno.navy.mil (192.5.41.239).
As always, no warranty is expressed or implied. "Caveat emptor."
--R.E.Schmidt, TIME SERVICE, US NAVAL OBSERVATORY, WASHINGTON,D.C.
(202)- 653-0487 Fax 202-653-0909
res@tuttle.usno.navy.mil