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28 Chapter 2 DNS Service
Monitoring DNS
You may want to monitor DNS status to troubleshoot name resolution problems, check
how often the DNS service is used, or even check for unauthorized or malicious DNS
service use. This section discusses common monitoring tasks for DNS service.
Viewing DNS Service Status
You can check the DNS Status window to see:
• Whether the service is running.
• The version of BIND (the underlying software for DNS) that is running.
• When the service was started and stopped.
• The number of zones allocated.
To view DNS service status:
1 In Server Admin, choose DNS in the Computer & Services list.
2 Click the Overview button for general DNS service information.
Viewing DNS Service Activity
You can check the DNS Status window to see:
• The number of transfers running and deferred.
• Whether the service is loading the configuration file.
• If the service is priming.
• Whether query logging is turned on or off.
• The number of Start of Authority (SOA) queries in progress.
To view DNS service activity:
1 In Server Admin, choose DNS in the Computer & Services list.
2 Click Activity to view operations currently in progress.
Viewing DNS Log Entries
DNS service creates entries in the system log for error and alert messages.
To see DNS log entries:
1 In Server Admin, choose DNS in the Computer & Services list.
2 Click Log.
Changing DNS Log Detail Levels
You can change the detail level of the DNS service log. You may want a highly detailed
log for debugging, or a less detailed log that only shows critical warnings.
LL2351.Book Page 28 Monday, September 8, 2003 2:47 PM