SSH, The Secure Shell: The Definitive Guide, 2nd Edition

Server

Two distinct flavors of the Tectia server are available (as of Version 4.2). The full-featured Tectia Server (T) is intended for application tunneling, and supports extra functionality needed by Tectia Connector, while the slightly encumbered Tectia Server (A) is intended only for remote system administration. All the programs that make up these products are identical; the only difference is the license file that enables or disables the additional features.

16.11.1 Server Operation

The Tectia server is implemented by a program, ssh2master, that runs as a daemon and listens for incoming connections. A separate program, ssh2server, is run to handle each connection when it is accepted. The sftp server is implemented by the program sftp_server2.

Tip

If you run a Tectia server on a Windows system configured with a firewall, be sure to allow access to the port(s) used to accept SSH connections, typically port 22.

Stopping the ssh2master program doesn’t affect existing connections, since ssh2server continues to run. The Tectia server can even be restarted by a session that uses an SSH connection!

Normally, the Tectia server is run as a Windows service that is automatically started whenever the system boots. Several mechanisms can be used to start or stop the service manually:

• Use the Tectia server administration program (discussed shortly).

• Select either the Start Server or Stop Server item within the menu Start/Programs/SSH Tectia Server/Tools.

• Access the Control Panel, and use the dialogs ...