Hi, Basicly you could start with reading about appsecure. If you're looking for how to configure it, the security configurations guide is a good startpoint. http://www.juniper.net/techpubs/en_US/junos12.1/information-products/topic-collections/security/software-all/security/junos-security-swconfig-security.pdf part 11. After you created working rules based on ip make a connection to the uac for the policy you want and start using source-idendity. You then can apply policies to users in specific UAC roles. Read here about configuring AUC to work with SRX http://www.juniper.net/techpubs/software/uac/4.2xguides/j-ic-uac-4.2-srxsolution.pdf Greetings, Michel
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