Resolved PostgreSQL authentication and permission errors

📅 2023-01-28 — Session: Resolved PostgreSQL authentication and permission errors

🕒 20:45–21:25
🏷️ Labels: Postgresql, Authentication, Permissions, Troubleshooting, Database
📂 Project: Dev
⭐ Priority: MEDIUM

Session Goal

The session aimed to address various PostgreSQL authentication and permission errors encountered during database administration tasks.

Key Activities

• Restarted the PostgreSQL service on multiple operating systems, ensuring administrative privileges were used.
• Resolved the ‘Peer authentication failed for user ‘postgres” error by modifying the pg_hba.conf file and ensuring compatibility between PostgreSQL and psql versions.
• Changed the authentication method for the ‘postgres’ user to MD5 by editing the pg_hba.conf file and restarting the service.
• Troubleshot incorrect password entries for the PostgreSQL user ‘postgres’, including checking password accuracy and user status.
• Reset the password for the PostgreSQL user ‘postgres’ and ensured proper authentication settings in the pg_hba.conf file.
• Resolved permission issues when accessing the PostgreSQL server by using ‘sudo’, setting a new password for the ‘postgres’ user, and checking the service status.
• Created a PostgreSQL role for ‘matias’ and granted necessary permissions for database access.
• Managed command history in the shell environment using the history command.
• Troubleshot PostgreSQL installation issues, including checking service status, log files, permissions, and configuration files.
• Checked PostgreSQL log files for monitoring PostGIS installations using command-line tools.

Achievements

Successfully resolved multiple PostgreSQL authentication and permission errors, improving database administration efficiency.

Pending Tasks

• Further monitoring of PostgreSQL and PostGIS installations to ensure stability and performance.
• Continuous review of log files for any new errors or warnings.