IBM Portable Utilities for i5/OS
The IBM Portable Utilities for i5/OS, LPO, 5733-SC1, is available for i5/OS users. The 5733-SC1 LPO contains the OpenSSH, OpenSSL, and zlib open source packages, which were moved to i5/OS using the i5/OS PASE runtime environment. The LPO requires i5/OS V5R3, or later, and also requires that i5/OS Option 33 (i5/OS PASE - Portable Solutions Application Environment) be installed.
TCP/IP connectivity applications, such as Telnet and file transfer protocol (FTP), transmit data and passwords over the network in plain text. This means that the data and passwords can be intercepted and read by other users on the network. The Secure Shell (SSH) protocol suite is a software solution that provides secure alternatives for Telnet and FTP. SSH verifies the authenticity of both the client and server, and all of the data (including user ids and passwords) is encrypted as it travels on the network. This encryption is done transparently to the end user.
For more information, see the 5733-SC1 -- IBM Portable Utilities for i5/OS web site.