TCP Monitoring: An Overview
One of the most essential network device monitors is TCP Monitoring. When a device responds to a ping, we can assume it is connected to the network and proceed to the next step, which is to confirm the availability of the required services. The services provided by a network device are all accessible via ports. They can then be reached via TCP or UDP.
By enabling TCP Monitoring, you may determine whether a service is accessible on a certain port on the network device. For instance, every website is hosted by a web service provider. These services can be accessed by default on ports 80 (non-secure) or 443 (secure). We can therefore check to see if the network device’s web server service is TCP-accessible by setting a TCP Monitor on port 80.