The Domain Name Server (DNS) Monitor verifies that the DNS server is accepting requests, and the IP address for a specific domain name can also be found. The DNS monitor is capable of observing DNS servers from specified geographical locations.
Completing DNS Monitor Settings
To display the DNS Monitor settings, click the Monitors link in the left navigation pane, or click the Create button and choose Monitor. The list of different monitors will appear. Click the DNS Monitor link. The Create New DNS Monitor window will appear.
Fill in the monitor setting fields as explained below, and click the Add button, once the form is completed.
Enter a unique name for this monitor (up to 50 characters). To make it easier to understand, the name should be structured and intuitive.
Enter the time interval to specify how frequently the monitor should check the DNS server response. The drop-down menu lets you specify time increments of minutes, hours, or days.
Every monitor is required to be associated with one monitor group. You need to create a monitor group before creating a monitor, or you can create a monitor in the default group automatically generated by the monitoring service software. Choose the desired monitor group from the drop-down menu.
For more information on monitor group, read Managing Monitor Groups
Enter the domain name that you want to query about from the DNS server with the help of a DNS Monitor (e.g. http://siteobservers.com).
Enter the IP address or the hostname of the DNS server that you want to track via the DNS Monitor.
Expected IP Address
The expected IP address is an optional parameter. It is the IP address of the domain to be monitored. Enter the expected IP address, if you know it for the domain entered in the above field.
Select one or more check boxes against different monitoring locations supported by our monitoring software platform. The monitoring software recommends choosing at least two or more locations to benefit from the capabilities of our monitoring services. If you want, you can select all monitoring locations.
Note: Our monitoring software platform simultaneously executes all monitoring checks from all selected monitoring locations.
Choose the contacts who will have access to this monitor from the existing contact list. You can select one or more check boxes to choose the contacts.
You can instruct our monitoring software to alert you when it detects a failure in your DNS server. Our monitoring service software offers several types of notifications, including emails and SMS. You can temporarily disable the alert configuration by choosing the desired time interval (6 to 12 hours), and selecting the Disable Alert for Next check box.
To configure alerts, choose the following parameters:
This option allows you to receive alert notifications only if your web environment is unavailable from a specified number of locations. For example, if you want to receive alerts only after a monitoring check failed from certain locations, choose the number of failures from the drop-down menu (e.g. 1, 2, 3, or all locations).
This option allows you to define when you should be alerted about a DNS service failure. You can configure the alert to notify you about any web environment failures only after a specific, or consecutive number of failures, according to the values configured by you. Our monitoring service software supports the immediately after a failure or after 2 to 5 consecutive failures options. You can choose your desired notification configuration.
This option lets you escalate your DNS service failure to a particular contact group, if the DNS service failure exceeds the time duration set for escalation. Our monitoring service software supports the time increments of 15 minutes to 12 hours.
This option lets you choose whom to escalate to by choosing a contact name from the drop-down menu. You can also add a customized group under the Notifications link. Choose the desired group, or all groups in the list.
Notify when the failure has been cleared
A notification when the DNS service/server failure has been cleared can be configured by choosing the desired contact group, and selecting the Notify when the failure has been cleared to check box.
Send alerts to the following notification groups
This option allows you to select check boxes against the existing notification groups.
Advanced Alert Escalation
The Advanced Alert Escalation option allows you to configure the alert escalation matrix up to six levels supported by the monitors of our monitoring service. You can set different levels of alert escalation for easy alarm management, and smooth technical coordination. To enable the advanced alert escalation matrix, select the check boxes against the escalation levels, and choose the suitable alert group that you want to receive the alert notification via the drop down menu.
For more information about on Advanced Alert Escalation, read Configuring advanced alert escalation
For more information on alerts, read How to Configure Alerts?
Performance Goal Configuration
This configuration allows you to instruct our monitoring service software to warn you when it detects a performance issue in your DNS service/server. Our monitoring platform supports several types of warnings, including email and SMS. Click the Warning Group check box to receive the notifications for any service degradation exceeding the pre-defined threshold values.
All monitoring locations selected for this monitor will appear along with the expected response time fields.
Select the check boxes against the monitoring locations for which you want the threshold time to set. Enter the time in the Expected Response Time (sec) fields. The default value is less than 20 seconds.
For more information on performance goal, read Adding Performance Goal Configuration
This configuration is used to disable the monitor during routine maintenance, or during a prolonged outage. By disabling the monitor, you can prevent alerts from being generated for this monitor. In this configuration, you can specify a time after which this monitor will be automatically re-enabled.
Click the check box to activate the maintenance schedule fields. Under the schedule drop-down menu, choose either one-time if you want this schedule to be implemented for a single time, or choose the recurring option, if you want to schedule maintenance periods on a regular basis.
Under the Time Zone field, choose the time zone in which you are located. Select the date, time,and duration of the schedule.
For more information on maintenance schedule, read How to Add maintenance Schedule?
Monitor Estimated Monthly Cost
This is an automatic monthly cost calculator based on your settings of your monitor. Our monitoring service software supports the monthly cost calculator function to provide estimated costs to the client. It displays estimated monthly credits, monthly checks, selected monitoring locations, monitoring intervals, and the number of checks per credit.
For more information on billing, read Understanding Billing
There are no advanced options for the DNS Monitor.
Monitor Execution Status
There are three major statuses that our monitoring software supports, as given below:
The warnings and alerts are generated in case of degradation of service and complete failure of service, respectively. The warnings, and alerts are logged in the monitor execution details as well as sent to the specified groups through emails and SMS. The Success status is not sent out to the concerned personnel, but it is recorded in the monitor execution details section. The details of website performance, and monitor check execution status can be viewed and retrieved through the control panel of our monitoring software.