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Juniper UAC Appliance IC4500 Step by Step Configuration (Part 2) - Certificate Based Authentication

In previous post Juniper UAC Appliance IC4500 Step by Step Configuration (Part 1), it describes the steps how to do basic set up to get user authenticated by UAC and how to configure UAC device interacting with SRX enforcer.

Here iss part 2. It will show how to set up the authentication with certifications rather than local UAC users, and get to know the steps how to let SRX and UAC work together to allow the resources to be accessed by users. More related posts list in the following links in this blog:



1. Change Authentication mode from System Local to Cert Auth


2. Add users Role Mapping with their Certs



3. Create New Resource Access Policies: 


Note: Those policies will match SRX firewall's firewall policy rules.



4. Configure UAC Service on Juniper SRX

services {
    unified-access-control {
        infranet-controller ic4500 {
            address 10.9.2.14;
            interface reth4.204;
            password "$9$f5F/CA0hSeO1eWx7sYn/9A1R"; ## SECRET-DATA
        }
        inactive: test-only-mode;
        traceoptions {
            file uac-trace size 2m world-readable;
            flag all;
        }
    }
}

Note:
  • UAC device IP address is 10.9.2.14. 
  • test-only-mode can be enabled for testing purpose

5. Configure SRX Firewall Policy Rule to Use UAC Service

 from-zone UNTrusted to-zone Trusted {
            policy 41 {
                match {
                    source-address n-10.0.0.0;
                    destination-address h_10.4.2.18_FE_TS;
                    application [ RDP junos-icmp-ping ];
                }
                then {
                    permit {
                        application-services {
                            uac-policy;
                        }
                    }
                }
            }


6. Verify

root@fw-uac1> show services unified-access-control status 
--------------------------------------------------------------------------
Host           Address         Port   Interface     State
ic4500         10.9.2.14   11123  reth4.204     connected

root@fw-uac1> show services unified-access-control roles     
--------------------------------------------------------------------------
Name                                     Identifier
Users                                    000000001.000005.0      
rdp-role                                 133882602.503985.0      
Total: 2

root@fw-uac1> show services unified-access-control policies 
--------------------------------------------------------------------------
Id    Resource                  Action Apply        Role identifier
1     tcp://10.4.2.18:3389 allow  selected     133882602.503985.0 
2     tcp://10.4.2.16:3389 allow  selected     000000001.000005.0 
Total: 2

root@fw-uac1> show services unified-access-control authentication-table 
--------------------------------------------------------------------------
Id    Source IP     Username     Age      Role identifier
14    10.9.1.11    John      0        133882602.503985.0 
Total: 1

root@fw-uac1> show services unified-access-control counters                
--------------------------------------------------------------------------
PIC: cluster1.node0
  Sessions allowed
    Policy action: 178
    Timeout action: 0
  Sessions denied
    Unauthenticated: 43949
    Policy action: 0
    Policy not matched: 184
    Timeout action: 0
  Sessions terminated
    Reevaluation: 0
    Signout: 13
PIC: cluster1.node1
  Sessions allowed
    Policy action: 548
    Timeout action: 0
  Sessions denied
    Unauthenticated: 94
    Policy action: 0
    Policy not matched: 3
    Timeout action: 0
  Sessions terminated
    Reevaluation: 0
    Signout: 43

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