[Contents] [Index]

About This Document >>     Installing SSH Tectia Server for IBM z/OS >>     Getting Started with SSH Tectia Server for IBM z/OS >>     Configuring the Server >>     Configuring the Client >>     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 >>         User Authentication with Certificates >>         Host-Based User Authentication >>         User Authentication with Keyboard-Interactive >>             Client Configuration             Server Configuration         Distributing Public Keys Using the Key Distribution Tool >>     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 >>

Server Configuration

Keyboard-interactive is not enabled by default on the server. To set up keyboard-interactive authentication, do the following steps:

1. Include the following line in the /etc/ssh2/sshd2_config file:

   AllowedAuthentications keyboard-interactive

   Also other authentication methods can be listed.
2. The submethods and policy for keyboard-interactive are configured as follows:

   AuthKbdInt.Required password AuthKdbInt.Optional password,plugin AuthKbdInt.NumOptional 1 AuthKbdInt.FailureTimeout 2 ...

   The default number of optional submethods that must be passed is 0, although if no required submethods are specified, the client must always pass at least one optional submethod.

   See the sshd2_config man pages for more information on the keywords (Appendix sshd2_config).

3. (Optional) You can configure password change for the password submethod with the two configuration variables described in Section User Authentication with Passwords.
4. Restart the server as instructed in Section Restarting sshd2.