This chapter is based on the manual pages (man pages) of OpenSSH and describes the OpenSSH client. The OpenSSH server is described in the “interNet Services Administrator Guide”.
The description provided here has been shortened to contain only the parts relevant to BS2000. At certain places in the chapter, such as in the descriptions of options, the OpenSSH man pages are referred to as only these contain the description of the most upto-date versions. You can find the OpenSSH man pages on the Internet at
https://www.openssh.com/manual.html or, after you have installed the component OpenSSH on your server,
under <installationpath>/readme/TCP-IP-SV.openssh/html/ as an HTML file,
under <installationpath>/readme/TCP-IP-SV.openssh/pdf/ as a PDF file,
under <installationpath>/readme/TCP-IP-SV.openssh/text/ as a text file.
The default installation path is: /opt/TCP-IP-SV/openssh
When the “OpenSSH man pages” are referred to in the course of this chapter, these sources are meant. The man pages supplied with the product should preferably be used as these man pages contain the BS2000-specific adaptations (changed path names, extended functionality, etc.).
SSH (Secure Shell) is a cryptographic protocol for performing the following tasks:
Login on a remote computer
Interactive / non-interactive command execution on a remote computer
File transfer between different computers in a network
SSH designates not just the protocol itself but also concrete implementations.
You will find detailed information on the concept behind OpenSSH in the “interNet Services Administrator Guide”.