Port 5432
PostgreSQL
PostgreSQL is a powerful, open-source object-relational database system known for its reliability, feature robustness, and strong compliance with industry standards. It supports advanced data types and performance optimization features, making it a popular choice for a wide range of applications, from web and mobile backends to enterprise data warehousing..
Technical Details
PostgreSQL Overview
PostgreSQL is an advanced, open-source object-relational database management system (ORDBMS) that provides enterprise-class features such as multi-version concurrency control (MVCC), point-in-time recovery, tablespaces, asynchronous replication, and extensive support for procedural languages. It adheres closely to the SQL standard while offering many modern capabilities beyond SQL compliance.
Protocol and Communication
By default, PostgreSQL communicates over TCP port 5432 for client-server interaction, supporting both plaintext and SSL-encrypted connections depending on configuration. The communication protocol involves startup message exchanges, authentication negotiation, query passing, and data transfer. Besides TCP, PostgreSQL's use of UDP is uncommon and usually environment-specific or related to extensions, hence SCTP is not typically applicable.
Use Cases and Deployment
PostgreSQL is deployed in diverse scenarios such as transactional systems, geospatial databases (using PostGIS), analytics platforms, and cloud-native applications, owing to its extensibility, compliance, strong data integrity, and support for large, concurrent workloads. Its driver ecosystem enables integration across programming languages and platforms.