M e r i d i a n I I U s e r M a n u a l
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C H A P T E R S E V E N
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M e r i d i a n I I U s e r M a n u a l
N E T W O R K T I M E P R O T O C O L ( N T P )
Setting Up NTP Clients
on Windows
To configure your Windows computer to use your Meridian II, you must have successfully completed
the procedures in
Configuring the NTP Server
above. Client installation must be performed by a
user with administrative priviledges.
If you have access to a usenet news server, many problems may be solved by the helpful people who
participate in the Internet news group devoted to NTP at
comp.protocols.time.ntp
.
Three methods of using Meridian II with NTP clients on Windows platforms will be described:
Basic:
This is the simplest, and will operate without MD5 authentication.
NTP beginners should
always perform this setup first
.
MD5:
This method is trickier only because MD5 keys must be set up and distributed accurately to
the NTP clients in a secure way. Meridian II is factory configured to authenticate its replies to NTP
MD5 clients using its default set of keys.
Broadcast/Multicast:
This method simplifies configuration of the clients on large networks since
specific server addresses need not be configured in each client’s
ntp.conf
file. It can be configured
either with or without MD5 authentication. However, it is highly recommended that authentication
be configured when using broadcast/multicast mode due to the relative ease with which a fake NTP
server can take over the clock setting of the broadcast/multicast clients on the network.
Windows: Basic NTP Client Setup
The two most common NTP clients on Windows platforms are described below. Information on
other NTP Client software is available at:
http://www.endruntechnologies.com/ntp-client.htm
Windows: w32time
Windows uses a time service called
w32time
which is automatically enabled by default during
Windows installation.
w32time.exe
synchronizes time in different ways, depending on the network
implementation used. When peer-to-peer networking is used, then each individual workstation syn-
chronizes to the NTP Server.
However, the most common method is with Windows Domain Networking. In this case, you must
configure the Primary Domain Controller (PDC) to synchronize to the NTP Server. All other servers
and workstations in the domain synchronize to the PDC. The default Windows installation procedure
automatically configures workstations and servers to synchronize to the controlling PDC. So, only
the PDC needs to be configured to synchronize to the NTP Server.
Windows: ntpd
For more precise timekeeping you should use
ntpd
. An easy way to install
ntpd
is by using a third-
party NTP compilation. A list for Windows is at this link:
Summary of Contents for Meridian II
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