Authentication Models
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What is Authentication Models?
PostgreSQL supports various authentication models to control access, including trust (no password, for secure environments), password-based (md5 and scram-sha-256 for hashed passwords), GSSAPI and SSPI (Kerberos for secure single sign-on), LDAP (centralized user management), certificate-based (SSL certificates for strong authentication), PAM (leveraging OS-managed authentication), Ident (verifying OS user names), and RADIUS (centralized authentication via RADIUS servers). These methods are configured in the pg_hba.conf file, specifying the appropriate authentication method for different combinations of databases, users, and client addresses, ensuring flexible and secure access control.
Free resources to learn Authentication Models
More in stage 9: Security
Authentication Models: common questions
Can I learn Authentication Models in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Authentication Models in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Authentication Models tutorial for beginners?
It is lesson 49 of 170 in the free PostgreSQL roadmap, in stage 9, Security. If you are new to PostgreSQL, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.