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Error: "Too Many Authentication Failures"
Technical Note 2143
Last Reviewed 30-Nov-2006
Applies To
Reflection for Secure IT Windows Client version 6.0 or higher
F-Secure SSH Client for Windows version 5.x
Summary
Technical Note 2143
Last Reviewed 30-Nov-2006
Applies To
Reflection for Secure IT Windows Client version 6.0 or higher
F-Secure SSH Client for Windows version 5.x
Summary
When attempting to logon to a secure session, you may see the error "Too many authentication failures," even if you have only logged in once. This error can occur if you have reached the maximum allowed login attempts or after a single login if too many authentication types are enabled on the client. This technical note explains how to disable client authentication types.
Resolving Authentication Failure
The "authentication failures" error can occur when multiple authentication methods are enabled in the Reflection for Secure IT or the F-Secure SSH Windows client, or when public key authentication is used to connect to an OpenSSH server.
Note: If you authenticate with a password, select either the Password or Keyboard-interactive user authentication method, not both. Typically, Keyboard-interactive is not required unless you use PAM on the server. This method can cause unwanted authentication attempts when enabled in a non-PAM environment.
To resolve this problem for the client or server you are using, follow the suggestions below.
Reflection for Secure IT Windows Client
To edit the Reflection authentication methods:
- Open Reflection for Secure IT.
- Click Connection > Connection setup.
- Enter the Host name, and then click Security.
- On the General tab, look at the User Authentication list. Clear the check boxes for all authentication methods that you do not use.
- Click OK, and then click File > Save to save your settings.
F-Secure SSH Client for Windows
To edit the F-Secure SSH authentication methods:
- Open F-Secure SSH.
- Click Edit > Settings.
- Expand Profile > Connection > Authentication.
- In the Authentication Methods field, remove any authentications that you do not need.
- Click OK, and then click File > Save to save your settings.
OpenSSH Server Public Key Authentication
Depending on the server version, OpenSSH servers limit the number of public key authentication attempts to four or five. If you have more than four or five keys in your key agent, or in the user folder, you could exceed this limit. To resolve this problem, decrease the number of keys in your key agent and in the client .ssh or .ssh2 folder.
