TNS
This signature detects Oracle, which is a relational database that uses TNS (Transparent Network Substrate) Listener to provide network connectivity for clients, application servers, and other databases to an Oracle database. The default port for the Oracle TNS Listener is TCP port 1521.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+