In https://supportforums.cisco.com/message/3953175#3953175 thread, I was able to get the ACS 5.2 work with SRX for both SSH CLI and J-Web TACACS+ accounts. However, I found the behavior is different on our production environment. I found our ACS 5.2 was configured authorization rule with condition "TACACS+ Service" = "junos-exec". I don't know how to configure this on my ACS 5.2 Please guide me how to configure this.
I found there was NO TACACS+ "Authorization Request" when access via J-Web in our production SRX and ACS. However, there were TACACS+ "Authorzation Request" when access via J-Web in our production SRX and ACS. The difference between my lab ACS and production ACS is the authorization rule condition. In my condition, I configure with all "SRX" Device Type. but in our production ACS 5.2, it was configure to TACACS+ Service=junos-exec. so I like to test it in our lab to find out the difference. Thanks.