This section introduces the components included in the SSH Tectia client/server solution architecture, the configuration tools, and how the server and user authentication work.

The SSH Tectia client/server solution utilizes client-server architecture. By default, the server listens to TCP port 22, which has been officially assigned for Secure Shell, and clients initiate connections to this port. The listener port can be changed in the server configuration.

The SSH Tectia client/server solution works with any type of Internet (TCP/IP) connection - ADSL, ISDN, modem, Ethernet, WLAN, PPPoE - thus making it widely applicable, totally independent of the network topology, and independent of network address translations or other features that may burden some other security solutions.