Sensors > Network/Internet Sensors

The DNS Sensor checks entries on a DNS server.

Sensor Tasks

Test Sensor	Tests the current sensor settings.
Get Help	Opens the ServerSentinel online help for the current sensor.

Basic Settings

Name

The name of the sensor (max. 100 characters). Choose a meaningful name to clearly identify the sensor.

Sensor is Active

Toggles the sensor ON/OFF.

Check Interval

The interval or times at which which the sensor should perform its checks.

Simple	The sensor performs its checks every x time units, e.g. every 10 minutes.
Daily	The sensor performs its checks daily at one or more (max. 4) fixed times, e.g. daily at 0 and 12 o'clock.
Weekly	The sensor performs its checks at certain days of the weeks at one or more (max. 4) fixed times, e.g. monday to friday at 12 o'clock.
Monthly	The sensor performs its checks at certain days of the month at one or more (max. 4) fixed times, e.g. every 1st of the month at 12 o'clock.

Only check if this Sensor didn't fail

This sensor will only be checked, if the sensor in the drop down list didn't fail.

Further Information

Comment

Short additional information to the sensor (max. 255 characters).

DNS Options

The IP address of one or more comma separated DNS servers (max. 1024 characters).

Determines of which type the query should be.

A	Queries an IPv4 host address
NS	Authoritative name server
CNAME	Query the canonical name for an alias
SOA	Get SOA information
PTR	Domain name pointer
HINFO	Query host information
MX	Get the Mail Exchange records for a particular server
TXT	Get textual information
AAAA	Queries an IPv6 host address
SRV	Service location query
NAPTR	Get the naming authority pointer record
ANY	Query all records that the server returns

DNS address which should be checked (max. 1024 characters).

The timespan in seconds after which a timeout for the query should occur.

Meta Data Values

Data Value	Data Type	Description
Checktime	Date	The time the dataset has been created.
Exception Message	String	The message of the error if any occurred.
Response Time	Integer	The response time needed to perform the check.
Status	String	A status string that may contain arbitrary information that was collected by the sensor (max. 255 characters). Per default this value is empty.
Status Flag	Enum	The status of the sensor after the check has been performed.

Data Values

Data Value	Data Type	Description
Connection ok	Boolean	This value is true if the DNS connection was ok.
Records	String	The records that were returned form the DNS query. Values in braces represent time-to-live information in seconds.
Response code	Enum	The response code of the DNS server. This value indicates whether the request was successful.

DNS Sensor