I remember dimly that there used to be a highly useful service where a server would regularly ping some destination and then email you if there were no responses to the pings (perhaps within some configurable limits). I just can’t remember where it was - I’m thinking that it died for some reason.
I would love to find an equivalent. Any ideas?
Such a service has to be hosted online, can’t be from a machine in my own network, for reasons I won’t bore you with.
The requirements are that I need to know if a particular device, in this case my 3G USB ‘dongle’ NIC, goes down as seen from the internet side of things; can’t ping it from within the LAN here as that would not be a sufficient test to cover all types of failure.
And I’m not talking about single manually initiated pings here, has to be continuous monitoring.