In a shell (Linux/Mac) or command prompt (Windows) type the following command:

telnet localhost 11211 

Where localhost can be replaced by the servers’ ip address and the port by a different one. 11211 is the default. A prompt will appear when the connection is succesful. Type the following command:

version

Depending on your telnet client, you might not see the text you are typing. Memcache will respond with its version, for example:

VERSION 1.2.4