Designing Your Novell eDirectory Network
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2.8.1 Synchronizing Time on NetWare Servers
In IP networks and mixed protocol networks, NetWare 5 servers communicate time with other
servers using IP. NetWare 5 servers use timesync.nlm and Network Time Protocol (NTP) to
accomplish this.
Time synchronization in NetWare 5 and 6 always uses timesync.nlm, whether servers are using IP
only, IPX
TM
only, or both protocols. Timesync.nlm loads when a server is installed. NTP can be
configured through timesync.nlm.
If your network also uses Windows, Linux, Solaris, AIX, or HP-UX, you should use NTP to
synchronize the servers because it is a standard to provide time synchronization.
For NetWare 3 and NetWare 4, third-party NTP time services are available.
For more information on time synchronization software, see
The Network Time Protocol (http://
www.ntp.org)
Web site.
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.
Summary of Contents for EDIRECTORY 8.8 SP2
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