// REFERENCE
Port 1434 (MS SQL Monitor)
Protocol: UDP
Service: MSSQL browser
High risk
The SQL Server Browser service: it reports which port each instance listens on. It was the vector of the SQL Slammer worm (2003). It must not be reachable from outside.
Related tools
Work with this in:
Related
1433
Port 1433 (MS SQL Server) 1521
Port 1521 (Oracle DB) 2181
Port 2181 (ZooKeeper) 3306
Port 3306 (MySQL / MariaDB) 5432
Port 5432 (PostgreSQL) 5601
Port 5601 (Kibana)
Port 1433 (MS SQL Server) 1521
Port 1521 (Oracle DB) 2181
Port 2181 (ZooKeeper) 3306
Port 3306 (MySQL / MariaDB) 5432
Port 5432 (PostgreSQL) 5601
Port 5601 (Kibana)
Assignments per the IANA port registry. Educational content.