SSH Tectia 
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    About This Document >>
    Installing SSH Tectia Server for IBM z/OS >>
    Getting Started with SSH Tectia Server for IBM z/OS >>
    Configuring the Server >>
    Authentication >>
        Using the z/OS System Authorization Facility
        Server Authentication with Public Keys in File >>
        Server Authentication with Certificates >>
        User Authentication with Passwords
        User Authentication with Public Keys in File >>
            Enabling Public-Key Authentication
            Using the Authorization File
            Using Keys Generated with OpenSSH
        User Authentication with Certificates >>
        Host-Based User Authentication >>
        User Authentication with Keyboard-Interactive
    System Administration >>
    File Transfer Using SFTP >>
    Secure File Transfer Using Transparent FTP Security >>
    Tunneling >>
    Troubleshooting SSH Tectia Server for IBM z/OS >>
    Man Pages and Default Configuration Files >>
    Log Messages >>

Using Keys Generated with OpenSSH

If the user has an existing OpenSSH authorized_keys file on the server, the ssh-keygen-g3 tool can be used to import the OpenSSH authorized_keys file and to configure the authorization file, for example:

SERVER> ssh-keygen-g3 --import-ssh1-authorized-key 
$HOME/.ssh/authorized_keys $HOME/.ssh2/authorization

Imported key /home/user/.ssh/authorized_keys:1 to 
/home/user/.ssh2/imported-437b1a07-1.pub and added to authorization file 
/home/user/.ssh2/authorization
Imported key /home/user/.ssh/authorized_keys:2 to 
/home/user/.ssh2/imported-437b1a07-2.pub and added to authorization file 
/home/user/.ssh2/authorization

For more information on the ssh-keygen-g3 options, see the ssh-keygen-g3 man page.

Alternatively, the administrator of SSH Tectia Server may enable AuthorizedKeysFile in the server configuration file /opt/tectia/etc/sshd2_config, for example as follows:

AuthorizedKeysFile %D/.ssh/authorized_keys

SSH Tectia Server will check the defined AuthorizedKeysFile in addition to the user's AuthorizationFile (by default $HOME/.ssh2/authorization). Note that the AuthorizationFile has precedence over AuthorizedKeysFile if the same key is defined in both.

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