If you want to find it easy to monitor your SQL server Nagios can be the best choice. You can monitor the entire activity of the infrastructure and every server service you use through Nagios. This program is also known to be a complete monitoring program that is used by many developers. This makes Nagios one of the best monitoring applications. If you are confused which software that you have to choose, then you are recommended to choose Nagios as one of the most popular SQL server monitoring software.