[Contents] [Index]

About This Document >>     Installing SSH Tectia Server for IBM z/OS >>     Getting Started with SSH Tectia Server for IBM z/OS >>         Running the Server >>         Environment Variables for Server and Client Applications         Setting Up a Shell User>>             Authenticating Remote Server Hosts             Using Password Authentication             Using Public-Key Authentication         Running Client Programs>>     Configuring the Server >>     Configuring the Client >>     Authentication >>     File Transfer Using SFTP >>     File Transfer Using Transparent FTP Tunneling >>     Tunneling on the Command Line >>     Troubleshooting SSH Tectia Server for IBM z/OS >>     Advanced Information >>     Man Pages >>     Log Messages >>

Authenticating Remote Server Hosts

Remote Secure Shell servers are authenticated by a public-key procedure. The user checks the fingerprint of the remote server's public key. When the user has approved the public key, it is stored in the user's $HOME/.ssh2/hostkeys directory and will be used automatically thereafter.

The verification step requires user interaction, so even for users that are set up to run client programs unattended (Section Running Client Programs under MVS), the first connection must be done by a person who logs in as the user, accesses the remote server, and goes through the fingerprint check dialog. The same steps must be repeated if the remote host's key is changed.

For more information on server authentication, see Section Authenticating Remote Server Hosts.