Example 2.23. Using the D-Link Time Server
To enable the use of the D-Link time server:
Command-Line Interface
gw-world:/> set DateTime TimeSynchronization=D-Link
Web Interface
1.
Go to: System > Device > Date and Time
2.
Select D-Link (preconfigured timesync server)
3.
Click OK
Configuring Custom Time Servers
NetDefendOS can be configured to query multiple external time servers. By using more than a
single server, situations where an unreachable server causes the time synchronization process to
fail can be prevented. NetDefendOS always queries all configured time servers and then
computes an average time based on all responses. Internet search engines can be used to find
publicly available time servers.
Important: DNS servers need to be configured in NetDefendOS
Make sure at least one external DNS server is correctly configured in NetDefendOS so
that time server URLs can be resolved (see Section 3.10, “DNS”). This is not needed if
using IP addresses for the servers but is always needed if using the option of D-Link's
own time servers.
Example 2.24. Configuring Custom Time Servers
In this example, time synchronization is set up to use the SNTP protocol to communicate with
the time servers at the
Swedish National Laboratory for Time and Frequency
. The time server URLs
are
ntp1.sp.se
and
ntp2.sp.se
.
Command-Line Interface
gw-world:/> set DateTime TimeSynchronization=custom
TimeSyncServer1=dns:ntp1.sp.se
TimeSyncServer2=dns:ntp2.sp.se
TimeSyncInterval=86400
Web Interface
1.
Go to: System > Device > Date and Time
Chapter 2: Management and Maintenance
83
Summary of Contents for NetDefendOS
Page 30: ...Figure 1 3 Packet Flow Schematic Part III Chapter 1 NetDefendOS Overview 30 ...
Page 32: ...Chapter 1 NetDefendOS Overview 32 ...
Page 144: ...Chapter 2 Management and Maintenance 144 ...
Page 284: ...Chapter 3 Fundamentals 284 ...
Page 392: ...Chapter 4 Routing 392 ...
Page 419: ... Host 2001 DB8 1 MAC 00 90 12 13 14 15 5 Click OK Chapter 5 DHCP Services 419 ...
Page 420: ...Chapter 5 DHCP Services 420 ...
Page 573: ...Chapter 6 Security Mechanisms 573 ...
Page 607: ...Chapter 7 Address Translation 607 ...
Page 666: ...Chapter 8 User Authentication 666 ...
Page 775: ...Chapter 9 VPN 775 ...
Page 819: ...Chapter 10 Traffic Management 819 ...
Page 842: ...Chapter 11 High Availability 842 ...
Page 866: ...Default Enabled Chapter 13 Advanced Settings 866 ...
Page 879: ...Chapter 13 Advanced Settings 879 ...