Creating security policies

RADIUS SSO uses regular identity-based security policies. The RSSO user group you specify determines which users are permitted to use the policy. You can create multiple policies if user groups can have different UTM features enabled, different permitted services, schedules, and so on.

 

To create a security policy for RSSO – web-based manager:

1. Go to Policy & Objects > Policy > IPv4.

2. Select Create New.

3. Enter the following information.

 

	Incoming Interface	as needed
	Source Address	as needed
	Source User(s)	Select the user groups you created for RSSO. See Defining local user groups for RADIUS SSO on page 598.
	Outgoing Interface	as needed
	Destination Address	all
	Schedule	as needed
	Service	as needed
	Action	ACCEPT
	Enable NAT	Selected
	Security Profiles	Select security profiles appropriate for the user group.
4.	Select OK.

 

To ensure an RSSO-related policy is matched first, the policy should be placed higher in the security policy list than more general policies for the same interfaces.

5. Select OK.

 

To create a security policy for RSSO – CLI:

In this example, an internal network to Internet policy enables web access for members of a student group and activates the appropriate UTM profiles.

config firewall policy edit 0

set srcintf internal set dstintf wan1

set srcaddr all set dstaddr “all” set action accept set rsso enable

set groups “RSSO-student” set schedule always

set service HTTP HTTPS

set nat enable

set utm-status enable set av-profile students

set webfilter-profile students set spamfilter-profile students set dlp-sensor default

set ips-sensor default

set application-list students

set profile-protocol-options “default” end

 

 

Example: webfiltering for student and teacher accounts

The following example uses RADIUS SSO to apply web filtering to students, but not to teachers. Assume that the RADIUS server is already configured to send RADIUS Start and Stop records to the FortiGate unit. There are two RADIUS user groups, students and teachers, recorded in the default attribute Class. The workstations are connected to port1, port2 connects to the RADIUS server, and port3 connects to the Internet.

 

Configure the student web filter profile:

1. Go to Security Profiles > Web Filter and select Create New (the “+” button).

2. Enter the following and select OK.

Name                                           student

Inspection Mode                       Proxy

FortiGuard Categories             Enable. Right-click the Potentially Liable category and select Block.

Repeat for Adult/Mature Content and Security Risk.

 

Create the RADIUS SSO agent:

1. Go to User & Device > Authentication > Single Sign-On and select Create New.

2. In Type, select RADIUS Single-Sign-On.

3. Select Use RADIUS Shared Secret and enter the RADIUS server shared secret.

4. Select Send RADIUS Responses.

5. Select OK.

 

Define local user groups associated with the RADIUS SSO user groups:

1. Go to User & Device > User > User Groups and select Create New.

2. Enter the following and select OK.

Name                                           RSSO-students

Type                                            RADIUS Single Sign-On (RSSO)

RADIUS Attribute Value           students

3. Select Create New, enter the following and select OK.

Name                                           RSSO-teachers

Type                                            RADIUS Single Sign-On (RSSO)

RADIUS Attribute Value           teachers

 

Create a security policy for students:

1. Go to Policy & Objects > Policy > IPv4 and select Create New.

2. Enter

 

	Incoming Interface	port1
	Source Address	all
	Source User(s)	RSSO-students
	Source Device Type	All
	Outgoing Interface	port3
	Destination Address	all
	Schedule	always
	Service	HTTP, HTTPS
	Action	ACCEPT
	NAT	ON
	Security Profiles	Enable AntiVirus, Web Filter, IPS.   In Web Filter, select the student profile.
3.	Select OK.

 

Create a security policy for teachers:

1. Go to Policy & Objects > Policy > IPv4 and select Create New.

2. Enter

Incoming Interface                   port2

Source Address                        all

Source User(s)                          RSSO-teachers

Source Device Type                 All

Outgoing Interface                   port3

Destination Address                 all

Schedule                                    always

Service                                       ALL

Action                                         ACCEPT

NAT                                             ON

Security Profiles                       Enable AntiVirus and IPS.

3. Select OK.

 

Having trouble configuring your Fortinet hardware or have some questions you need answered? Check Out The Fortinet Guru Youtube Channel! Want someone else to deal with it for you? Get some consulting from Fortinet GURU!