Databases ports
14 databases ports: what each one does, its protocol, and whether it is secure by default.
SubnetKit lists 14 databases ports, using TCP, UDP, TCP/UDP. 8 of 14 are formally registered with IANA rather than just a widely followed convention.
None of the databases ports here are encrypted by default. Treat traffic on any of them as plain text unless you add TLS, SSH, or a VPN tunnel yourself.
Click any port below for its full page: what it does, its protocol, and whether it is safe to expose.
| Port | Service | Protocol | What it does |
|---|---|---|---|
| 1433 | MSSQL | TCP | Microsoft SQL Server |
| 1434 | MSSQL Browser | UDP | Microsoft SQL Server Browser service |
| 1521 | Oracle | TCP | Oracle database listener |
| 3050 | Firebird | TCP | Firebird database (gds_db) |
| 3306 | MySQL | TCP | MySQL / MariaDB |
| 5432 | PostgreSQL | TCP | PostgreSQL database |
| 5984 | CouchDB | TCP | Apache CouchDB HTTP API |
| 6379 | Redis | TCP | Redis key-value store |
| 8086 | InfluxDB | TCP | InfluxDB HTTP API |
| 9042 | Cassandra | TCP | Apache Cassandra native transport (CQL) |
| 9200 | Elasticsearch | TCP | Elasticsearch HTTP / REST API |
| 11211 | Memcached | TCP/UDP | Memcached |
| 27017 | MongoDB | TCP | MongoDB database |
| 50000 | IBM Db2 | TCP | IBM Db2 database |
Frequently asked questions
Which ports are in the Databases category?
port 1433 (MSSQL), port 1434 (MSSQL Browser), port 1521 (Oracle), port 3050 (Firebird), port 3306 (MySQL), port 5432 (PostgreSQL), port 5984 (CouchDB), port 6379 (Redis), port 8086 (InfluxDB), port 9042 (Cassandra), port 9200 (Elasticsearch), port 11211 (Memcached), port 27017 (MongoDB) and port 50000 (IBM Db2).
How many databases ports does SubnetKit list?
14, covering TCP, UDP, TCP/UDP. 8 of them are formally registered with IANA.
Are databases ports secure by default?
No. None of the databases ports here are encrypted by default; wrap them in TLS, SSH, or a VPN if you need to protect the traffic.
Which databases port has the lowest number?
Port 1433 (MSSQL). Port 1433 is the default listener for Microsoft SQL Server. Like all database ports, it should be reachable only from application servers, never from the open internet.