Configuring Name Server (DNS) monitoring
The Add Monitor Types dialog box enables you to monitor the performance of DNS server when you selectName Server (DNS) as the monitor type.
Field | Description |
---|---|
Instance name | Enter the instance name of the query. |
DNS Server Name | Enter the DNS server to run the query on, by the monitored device. A server is automatically selected, if this filed is left blank. |
DNS Query | Enter the text string to be used in the query from one of the following:
|
Retry | Enter the number of retries. The number of attempts made to resolve the query before an error is returned. |
Timeout | Enter the time in seconds. The number of seconds to wait for a response before timeout. |
Type | Select the type of the query from the following:
|
Content Check Criteria |
|
Single line content expression | Enter the expected response from the DNS server. |
Multi line content expression file | Enter the name of the file containing the expected responses. |
Case sensitive match | Enable to match the case of the response to the expression included in the single line content expression or the multi line content expression file. |
Evaluate Unix-style regular expressions | Enable to compare the response to a regular expression included in the single line content expression or multi line content expression field. |
Content check operation | Select to raise an alarm if content check matches or does not match. |
- To add the DNS server to add to the list of monitored DNS servers, click Add to List.
- To save changes made to the already added DNS server, click Modify Selection.
- To remove a selected DNS server from the list, click Remove from List.