January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Basic server configuration
In order to access the server, we need to understand the PostgreSQL authentication mechanism. On Linux systems, you can connect to PostgreSQL using a Unix-socket or TCP/IP protocol. Also, PostgreSQL supports many types of authentication methods.
When a PostgreSQL server is installed, a new operating system user, as well as a database user, with the name postgres is created. This user can connect to the database server using peer authentication. The peer authentication gets the client's operating system username and uses it to access the databases that can be accessed. Peer authentication is supported only by local connections—connections that use Unix sockets. Peer authentication is supported by Linux distribution ...
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