4.3.6 TACACS+ Authentication
Terminal Access Controller Access-Control System Plus (TACACS+) is a protocol
that handles authentication, authorization, and accounting (AAA) services.
SecureSync supports pam_ tacplus, allowing users to validate their user-
name/password when logging into SecureSync via a TACACS+ server. Currently,
http/https/ssh/telnet/ftp protocols are supported, i.e. you can login to a
SecureSync unit using TACACS+ authentication via applications using any of
these protocols.
Note: Your TACACS+ files will need to have either a pap or global
user attribute. SecureSync does not authenticate tacacs.conf files
with the default login user attribute.
Caution: In order to utilize TACACS+ authentication, the account
username on the TACACS+ server must NOT be used with a local
user account.
E x a m p l e :
A user with the username user3 on the TACACS+ server will not be able to login to a
SecureSync unit, if on that unit a local user account with the username user3 exists.
However, once the user deleted the local user3 account, she will be able to login with
the TACACS+ user3 account.
Sources of general reference information on TACACS+:
https://en.wikipedia.org/wiki/TACACS
http://www.cisco.com/c/en/us/support/docs/security-vpn/remote-
authentication-dial-user-service-radius/13838-10.html
https://github.com/jeroennijhof/pam_tacplus
See also "RADIUS Authentication" on page290
4.3.6.1 Enabling/Disabling TACACS+
To enable or disable the use of TACACS+ authentication on a SecureSync unit:
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CHAPTER 4 • SecureSync 2400 User Manual Rev. 5.2
4.3 Managing Users and Security
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