An attempt to collect the default port for the most used server programs as cheatsheet
So many times I have to go to official documentation of network protocols or databases to find out what is the default port for that particular tool. So I created a cheatsheet and listed down default port at a single place.
This is not a comprehensive list but should cover most of the popular ones. I will keep adding more as I keep encountering new tools during my development or learning cycle.
Networking / Internet protocol default port
| Service | Default Port (UDP/TCP) |
|---|---|
| DNS (Domain Name System) | 53 (UDP/TCP) |
| HTTP (Hypertext Transfer Protocol) | 80 (TCP) |
| HTTPS (HTTP Secure) | 443 (TCP) |
| FTP (File Transfer Protocol) | 20 (FTP Data, TCP) |
| 21 (FTP Control, TCP) | |
| SSH (Secure Shell) | 22 (TCP) |
| Telnet (Remote Terminal Protocol) | 23 (TCP) |
| SMTP (Simple Mail Transfer Protocol) | 25 (TCP) |
| DNS over TLS (DoT) | 853 (TCP) |
| DHCP (Dynamic Host Configuration Protocol) | 67 (UDP) |
| DHCPv6 (IPv6 Dynamic Host Configuration) | 547 (UDP) |
| NTP (Network Time Protocol) | 123 (UDP) |
| SNMP (Simple Network Management Protocol) | 161 (UDP) |
| RDP (Remote Desktop Protocol) | 3389 (TCP) |
| LDAP (Lightweight Directory Access Protocol) | 389 (TCP/UDP) |
| LDAPS (Secure Lightweight Directory Access Protocol) | 636 (TCP) |
| MQTT (Message Queuing Telemetry Transport) | 1883 (TCP) |
| Syslog (System Logging Protocol) | 514 (UDP) |
| BGP (Border Gateway Protocol) | 179 (TCP) |
| RIP (Routing Information Protocol) | 520 (UDP) |
| PPTP (Point-to-Point Tunneling Protocol) | 1723 (TCP) |
| RADIUS (Remote Authentication Dial-In User Service) | 1812 (UDP) |
| RADIUS Accounting | 1813 (UDP) |
| IMAP (Internet Message Access Protocol) | 143 (TCP) |
| IMAPS (IMAP Secure) | 993 (TCP) |
| POP3 (Post Office Protocol version 3) | 110 (TCP) |
| POP3S (POP3 Secure) | 995 (TCP) |
| SIP (Session Initiation Protocol) | 5060 (UDP/TCP) |
| SIPS (SIP Secure) | 5061 (TCP) |
| RTSP (Real-Time Streaming Protocol) | 554 (TCP/UDP) |
| WebDAV (Web Distributed Authoring and Versioning) | 8080 (TCP) |
| IPsec NAT-T (IPsec Network Address Translation Traversal) | 4500 (UDP) |
| BitTorrent | 6881-6889 (TCP/UDP) |
Common Database default ports
| Service | Default Port (TCP) |
|---|---|
| MySQL Database Server | 3306 |
| PostgreSQL Database Server | 5432 |
| Redis (In-memory Data Structure Store) | 6379 |
| MongoDB (NoSQL Database) | 27017 |
| Cassandra (Apache Cassandra) | 9042 |
| ScyllaDB | 9042 |
| Couchbase Server | 8091 |
| CouchDB | 5984 |
| Neo4j | 7687 |
| Amazon DynamoDB | - |
| SAP HANA | 30015 |
| Elasticsearch | 9200 |
| Apache Solr | 8983 |
| Apache Hive | 10000 |
| Apache HBase | 16000 |
| Teradata | 1025 |
| MariaDB | 3306 |
| Splunk | 8089 |
| IBM Db2 | 50000 |
| Microsoft SQL Server | 1433 |
| Oracle Database | 1521 |
| Snowflake | 443 |
Please note that while these are the default ports for the respective protocols and databases, actual port configurations may vary depending on the specific setup and configurations of the systems in use. Also rely on the official documentation in case things are not working out for your setup.