Tectia Server for IBM z/OS is a client/server security solution based on the Secure Shell protocol. It provides secure file transfer, secure shell access, remote shell command execution, and TCP and FTP tunneling. When used with Tectia Client and ConnectSecure on Windows, it provides transparent secure TN3270 connections.

Tectia Server 6.5 for IBM z/OS is installed to z/OS Unix System Services (USS), but it can be run in the native environment (hereafter MVS) and process files of the native file system. Tectia Server for IBM z/OS supports direct MVS data set access.