I have an internal company server, and there are a few internal apps that are hosted on it.
The problem is that the connection is not very stable, so I want to know how is the connection in a time series manner, for how long the server has been down, at what period of time the server is down, that kind of information.
To be more specific, I want to know whether a particular port on that server is accessible, because the app requires a dedicated port to communicate with the rest of the clients in the network.
Edit: Note that the port and the app is only accessible from the intranet.
Is there any software/ web apps that do this?