If you just use one of our built-in monitors, like the Default HTTP, it will simply attempt to load the web page with the IP address of the attached device and look for an HTTP 200 response code. Often, this is a perfectly quick and accurate monitor, but this doesn’t always work. For example, I […]
How often can I configure a monitor to test my server, and what parameters are available for testing and determining if it is down?
You can configure any monitor to test your server(s) as often as once per minute (the test “Interval”). Additionally, you can configure these parameters: Response Time-out (in seconds) – This is how long the monitor will wait for a particular test to come back positive or negative. Down Time (in seconds) – This is a […]
How can I reliably monitor my database server to see if it is online, or in the case of a replicated database, if it is the primary or not?
The recommended way to monitor any type of database, including Microsoft SQL Server, is to create a hidden web-page that does a specific database query, and when successfully completed, sends a word (e.g. “OK”) to the web browser. This method is secure because you need not open SQL ports in your firewall to allow our […]
Yes, absolutely. When creating an HTTP monitor, you can go to the SPECIAL PARAMETERS tab and adjust the HTTP Request value to look for your special page. By default the HTTP Request value is “HEAD /”. If, for example, you wanted to test the page at http://www.mydomain.com/test.php, you would change the value in the HTTP Request […]
Yes, absolutely. This is a very common use for our DNS Failover service. While some customers use it to switch between servers at different datacenters, it works very well to switch between the same server that has two different public IP addresses at the same location or datacenter (e.g. two ISPs, two WAN connections etc.) DNS […]