A stepping stone is a type of computer security measure which consists of placing several logical security systems, used as authentication servers, in a serial disposition to emulate a physical narrow channel, analogous to a physical path formed by stepping stone

Stepping stone

Stepping stone and similar can refer to:* Step-stone bridge, stones placed in a river to allow pedestrians to cross* Stepping stone , a type of computer security measure...

s used to cross a river. Using this system, it is possible to apply a granular control over each system acting as a 'stone', establishing different risk levels as so many systems which have been placed in the series.

For example, to grant a user with access to an OpenSSH

OpenSSH

OpenSSH is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol...

 server, for executing an application in a high-security environment, we could put a front-end system such as a Sun Solaris with a Citrix Metaframe in the 1st security layer.