How to configure IDP on the SRX Series

https://kb.juniper.net/InfoCenter/index?page=content&id=KB16489&actp=METADATA

1- install license

2- Download the IDP security packages & Install signature database

...

[edit]
root# run request security idp security-package install
error: Security Package installation disabled temporarily due to invalid license.

4- Enable a Sec Policy for IDP Inspection

set security idp active-policy ?  >>>> list of preconfig policy

set security idp active-policy Recommended

show | compare

set security policies from-zone trust to-zone untrust policy idp-app-policy-1 match source-address any destination-address any application any
set security policies from-zone trust to-zone untrust policy idp-app-policy-1 then permit application-services idp

show security idp status