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ssh-hostbased-setup(1)
NAME
  ssh-hostbased-setup - Sets up Secure Shell host-based authentication by
  verifying and if necessary, copying a public host key from a specified
  remote host

SYNOPSIS
  ssh-hostbased-setup [-b] [-u] [-v] filename | hostname

OPTIONS
  -b  Contacts a remote host to verify whether or not the remote host is
      issuing the same public host key as the one that is stored on the local
      host. If the public host keys are different, attempts to copy the new
      public host key and rename and save a backup copy of the old public
      host key. The renamed key is the same name but with the current date
      appended.

  -u  Contacts a remote host to verify whether or not the remote host is
      issuing the same public host key as the one that is stored on the local
      host. If the public host keys are different, attempts to copy the new
      public host key (overwriting the existing key).

  -v  Contacts a remote host to verify whether or not the remote host is
      issuing the same public host key as the one that is stored on the local
      host. If the public host keys are different, a message is displayed
      informing the user that the public host key for the remote host is
      different.

      If the public host key is different, the user must enter the ssh-
      hostbased-setup with the -b or -u option to copy the new key.

OPERANDS
  filename
      Specifies the name of the file that contains the names of	 remote hosts
      for which host-based authentication is being configured or verified.
      The specified file is usually the .rhosts file or the .shost file.

  hostname
      Specifies the name of the remote host for which host-based
      authentication is being configured or verified.

DESCRIPTION
  A local and remote host must have a copy of each other's public host key to
  use Secure Shell host-based authentication. The ssh-hostbased-setup command
  verifies and if necessary, copies the public host key from the specified
  remote host or from the remote hosts listed in the specified file to the
  /etc/ssh2/knownhosts directory on the local host.

  Besides entering the ssh-hostbased-setup command, Secure Shell host-based
  authentication requires additional configuration.  See Security
  Administration for more information on configuring Secure Shell host-based
  authentication.

LEGAL NOTICES
  SSH is a registered trademark of SSH Communication Security Ltd.

EXAMPLES
  To update the public host keys for remote hosts listed in the local .rhosts
  file, enter:

       $ ssh-hostbased-setup -u .rhosts
       hostname.fqdn.com already setup, comparing hostkeys: matched.

FILES
  $HOME/.rhosts
      Specifies remote users who can use a local user account. The .rhosts
      file is used by the rlogind daemon, the rshd daemon, and the Secure
      Shell daemon, sshd2

  $HOME/.shosts
      Specifies remote users who can use a local user account. The .shosts
      file is used only by the Secure Shell daemon, sshd2.

  /etc/ssh2/ssh2_config
      Specifies Secure Shell client configuration information.

  /etc/ssh2/sshd2_config
      Specifies Secure Shell server configuration information.

SEE ALSO
  Commands: sshd2(8)

  Files: .rhosts(4), .shosts(4), ssh2_config(4), sshd2_config(4)

  Guides: Security Administration

Index for Section 1

Alphabetical listing for S

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