PASSPORT-CONTROLLED FIREWALL

A method, and associated system and computer program product, for dynamically modifying rules in a firewall infrastructure. A unit of deployment is received at a requestor module at a server. The unit of deployment includes the application code and a signed passport. The passport includes a firewall rule and a first application hash value. The received passport is authenticated, the received application code is hashed resulting in a second application hash value, and it is validated that the received first application hash value and the generated application hash value are equal. In response to the validation, the passport is received by a border control agent of the firewall from the server, a firewall is modified in the firewall infrastructure according to the received firewall rule, and communicating with the application is enabled through the modified firewall.