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Your computers should be on the same time zone. If they are not on the same time zone, send the following UNIX command:
sudo systemsetup
For other time zones, see the man page for systemsetup. For instructions on sending UNIX commands through Apple Remote Desktop, see the Apple Remote Desktop Administrator’s Guide.
2In Apple Remote Desktop, send the following UNIX command to all computers:
sudo systemsetup
Your computers should have times within a few minutes of each other. If they have a wide range of times, send the following UNIX command:
sudo systemsetup
Replace current_time with the current time in
Testing Your DNS Service
Your DNS service should allow you to discover a server’s domain name when given an IP address, or to retrieve an IP address when given a domain name. If your computers can’t do these tasks, perform further analysis on your DNS service. For a detailed description of DNS and for instructions on configuring DNS, see Network Services Administration.
If you have Apple Remote Desktop installed, you can quickly test your entire network. In Apple Remote Desktop, create a scanner that displays computers with IP addresses in the range distributed by your DHCP server. If a computer is turned on, is not in sleep mode, and is connected to your network, the computer should be in the scanner.
The scanner displays the IP address given to the computer and the computer’s host name. Computers that are not assigned host names by the DNS service are listed without host names. If a computer is listed and has an appropriate IP address and host name, the computer is receiving DHCP and DNS service.
For more information about how to use scanners in Apple Remote Desktop, see the Apple Remote Desktop Administrator’s Guide.
If you do not have Apple Remote Desktop installed, you can perform the following task to test a single computer’s ability to receive DNS service.
To test your network’s DNS service on a single computer:
1On a network computer that is not the server providing DNS service, open Network Utility.
2In the Lookup pane of Network Utility, enter the domain name of your Open Directory master server and click Lookup.
Chapter 11 Solving Problems
