active reconnaissance

I want an active reconnaissance.

Maintain active reconnaissance to your front."

It is an active reconnaissance network security analysis technique that attempts to determine which layer 4 protocols a specific firewall will allow.

The unit has three primary tasks: Active Reconnaissance, Surveillance, and Direct Action.

When the RC-135C was fully deployed, SAC was able to retire its fleet of RB-47H Stratojets from active reconnaissance duties.

In the next following years, the Company increased in manpower and the brevity of upcoming missions, forcing it to be re-designated to full battalion-strength with two active reconnaissance companies; becoming the "Amphibious Reconnaissance Battalion".