SSH Reference Manual

Name of the remote user.

Describes the reason for the authentication failure.

Cause: An error occurred during the authentication of the user. Typical errors are:

"User not found": <user name> does not exist in the SSHCTL.

"User is frozen": <user name> exists in the SSHCTL but is frozen.

Effect: The remote SSH user cannot be authenticated. The session will be terminated.

Recovery: Any corrective action depends on the reason for the authentication failure. It may be required to

add, correct or thaw a user name using SSHCOM.

<session id>: No more authentication requests possible for <user name>

Name of the remote user.

Cause: The maximum number of authentication requests exceeded. Typically, this condition can occur with

password authentication, if the SSH clients sends an invalid password for three times.

Effect: The remote SSH user cannot be authenticated. The session will be terminated.

Recovery: Use correct credentials for the user with the SSH client.

<session id>: password change for user <user name> failed: <error detail>

Name of the remote user

is a description of the error that made the password change fail.

Cause: An error occurred when trying to change the user’s password, upon request of the SSH client.

Effect: The password could not be changed.

Recovery: Any corrective action depends on cause.

<session id>: public key authentication failed, algorithm not supported.

Cause: The SSH client tried to use an algorithm for public key authentication that is not supported by SSH2.

Effect: The password could not be changed

Recovery: Configure the SSH client to use a public key algorithm supported by SSH2.

<session id>: public key authentication failed, too many keys

Cause: The SSH client has more than ten public keys that did not match any public key stored for the user in

the SSHCTL.

Effect: The public key authentication is aborted. The user cannot be authenticated.

334 • Troubleshooting HP NonStop SSH Reference Manual