A ping, it’s a network test. It’s works by sending a request to a server to verify if we have a reply and determine response time.
The goal is to verify that there’s no problems of communication with servers via internet.
TCP Ping & ICMP Ping
In both, it’s a network test. The difference is the protocol used (the systems of communication tested will be different between the TCP ping and the ICM ping).
- L’ICMP ping allows to measure the connectivity with the server via the internet network. Nevertheless, sometimes production machines do not respond to ICMP ping. This is not due to a technical issue, but it is a deliberate choice to close the communication system. To overcome the event in which the ICMP test is not conclusive, we run a second test with a protocol that is always reachable : TCP ping.
- The TCP ping works on the same principle that the ICMP, but via a TCP protocol, on port 80, the communication medium of your web servers. Port 80 is always open, because closing it would make your site unavailable.
Make sure your website doesn’t have any network problems. (réactiver lien hypertext: Your website is down: a network problem?)