Configure TACACS+ Authentication

Add a TACACS+ server profile.
The profile defines how the firewall connects to the TACACS+ server.
Select
Device
Server Profiles
TACACS+
or
Panorama
Server Profiles
TACAS+
on Panorama™ and
Add
a profile.
Enter a
Profile Name
to identify the server profile.
(
Optional
) Select
Administrator Use Only
to restrict access to administrators.
Enter a
Timeout
interval in seconds after which an authentication request times out (default is 3; range is 1–20).
Select the
Authentication Protocol
(default is
CHAP
) that the firewall uses to authenticate to the TACACS+ server.
Select
CHAP
if the TACACS+ server supports that protocol; it is more secure than
PAP
.
Add
each TACACS+ server and enter the following:
Name
to identify the server
TACACS+ Server
IP address or FQDN. If you use an FQDN address object to identify the server and you subsequently change the address, you must commit the change for the new server address to take effect.
Secret
/
Confirm Secret
(a key to encrypt usernames and passwords)
Server
Port
for authentication requests (default is 49)
Click
OK
to save the server profile.
Assign the TACACS+ server profile to an authentication profile.
The authentication profile defines authentication settings that are common to a set of users.
Select
Device
Authentication Profile
and
Add
a profile.
Enter a
Name
to identify the profile.
Set the
Type
to
TACACS+
.
Select the
Server Profile
you configured.
Select
Retrieve user group from TACACS+
to collect user group information from VSAs defined on the TACACS+ server.
The firewall matches the group information against the groups you specify in the Allow List of the authentication profile.
Select
Advanced
and, in the Allow List,
Add
the users and groups that are allowed to authenticate with this authentication profile.
Click
OK
to save the authentication profile.
Configure the firewall to use the authentication profile for all administrators.
Select
Device
Setup
Management
and edit the Authentication Settings.
Select the
Authentication Profile
you configured and click
OK
.
Configure the roles and access domains that define authorization settings for administrators.
If you already defined TACACS+ VSAs on the TACACS+ server, the names you specify for roles and access domains on the firewall must match the VSA values.
Configure an Admin Role Profile if the administrator will use a custom role instead of a predefined (dynamic) role.
Configure an access domain if the firewall has more than one virtual system—Select
Device
Access Domain
,
Add
an access domain, enter a
Name
to identify the access domain, and
Add
each virtual system that the administrator will access, and then click
OK
.
Commit
your changes to activate them on the firewall.
Configure the TACACS+ server to authenticate and authorize administrators.
Refer to your TACACS+ server documentation for the specific instructions to perform these steps:
Add the firewall IP address or hostname as the TACACS+ client.
Add the administrator accounts.
If you selected
CHAP
as the
Authentication Protocol
, you must define accounts with reversibly encrypted passwords. Otherwise, CHAP authentication will fail.
Define TACACS+ VSAs for the role, access domain, and user group of each administrator.
When you predefine dynamic administrator roles for users, use lower-case to specify the role (for example, enter
superuser
, not
SuperUser
).
Verify that the TACACS+ server performs authentication and authorization for administrators.
Log in the firewall web interface using an administrator account that you added to the TACACS+ server.
Verify that you can access only the web interface pages that are allowed for the role you associated with the administrator.
In the
Monitor
,
Policies
, and
Objects
tabs, verify that you can access only the virtual systems that are allowed for the access domain you associated with the administrator.