Novell EDIRECTORY 8.8 SP3, Administration Manual, Page: 91 / 634

Designing Your Novell eDirectory Network 91
n
ov
do
cx (e
n)
11
Ju
ly 20
08
NTP
NTP functions as part of the UDP protocol suite, which is part of the TCP/IP protocol suite.
Therefore, a computer using NTP must have the TCP/IP protocol suite loaded. Any computers on
your network with Internet access can get time from NTP servers on the Internet.
NTP synchronizes clocks to the Universal Time Coordinated (UTC) standard, which is the
international time standard.
NTP introduces the concept of a stratum. A stratum-1 server has an attached accurate time piece
such as a radio clock or an atomic clock. A stratum-2 server gets time from a stratum-1 server, and
so on.
For NetWare 5 and 6 servers, you can load ntp.nlm to implement NTP time synchronization through
timesync.nlm. When NTP is configured with the timesync.nlm on an IP server, NTP becomes the
time source for both IP and IPX servers. In this case, IPX servers must be set to secondary servers.
For more information on time synchronization, see the Network Time Management Administration
Guide (http://www.novell.com/documentation/lg/nw65/time_enu/data/hl5k6r0y.html) and the
Network Time Protocol Administration Guide (http://www.novell.com/documentation/lg/nw65/ntp/
data/aizwub2.html) .
TIMESYNC.NLM
Timesync.nlm synchronizes time among NetWare servers. You can use timesync.nlm with an
external time source like an Internet NTP server. You can also configure Novell Client
TM
workstations to update their clocks to servers running the timesync.nlm.
For more information on time synchronization, refer to the Network Time Management
Administration Guide (http://www.novell.com/documentation/lg/nw65/time_enu/data/
hl5k6r0y.html) .
2.8.2 Synchronizing Time on Windows Servers
For information on time synchronization for Windows 2000 servers, see Setting Time
Synchronization With Windows 2000 (http://www.netadmintools.com/art313.html) Web site.
2.8.3 Synchronizing Time on Linux, Solaris, or AIX Systems
You can use the xntpd Network Time Protocol (NTP) daemon to synchronize time on Linux, Solaris,
and AIX servers. xntpd is an operating system daemon that sets and maintains the system time-of-
day in synchronism with Internet standard time servers.
For more information on running xntpd on AIX systems, see xntpd Daemon (http://
publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/cmds/aixcmds6/xntpd.htm) in the AIX
Commands Reference, Volume 6 .
For more information on running xntpd on Solaris system, see http://docs.sun.com/?p=/doc/806-
0625/6j9vfim2v&a=view#xntpd-1m-indx-2 (http://docs.sun.com/?p=/doc/806-0625/
6j9vfim2v&a=view#xntpd-1m-indx-2)
.
For information on running ntpd on Linux systems, see ntpd - Network Time Protocol (NTP)
Daemon (http://www.eecis.udel.edu/~mills/ntp/html/ntpd.html) .