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Mohammed_Feroz
Staff
Staff
May 29, 2025

Troubleshooting Tip: How to resolve a fatal configuration error log in the TACACS+ configuration

  • May 29, 2025
  • 0 replies
  • 184 views
Description This article describes how to fix the fatal configuration error caused by an unrecognized keyword in TACACS+ configuration.
Scope FortiAuthenticator.
Solution

Upon configuration of TACACS+ on FortiAuthenticator, the following errors can be seen if the configuration includes any spaces in TACACS+ services, as this is known to crash the service. 

 

wauth tac_plus[49497]: Error Detected fatal configuration error. Exiting.
wauth tac_plus[49492]: Error /usr/etc/tacdb/tac_plus.cfg:134: Unrecognized keyword 'Auth' (user/group: Cisco_Level_15_Priv)

 

It is recommended to avoid space in TACACS+ service configuration.

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