Software⏱️ 1 min read📅 2026-05-31

How to Fix: psql: FATAL: Ident authentication failed for user "postgres"

psql Ident authentication failed for user postgres on Ubuntu Karmic

Quick Answer: Check if the PostgreSQL server is configured to use password authentication. Run the command "psql -U postgres" and enter your password when prompted.

The issue you're experiencing, where psql authentication fails for the user 'postgres', is often due to a mismatch between the password used in pgAdminIII and the one used on the command line. This discrepancy can be caused by various factors such as incorrect input or forgotten passwords.

✅ Best Solutions to Fix It

Method 1: Update PostgreSQL Password

  1. Step 1: Open the terminal and navigate to the directory where your PostgreSQL data is located.
  2. Step 2: Use the following command to update the password for the 'postgres' user: psql -U postgres -c

Did this fix your problem?

If not, try searching for specific error codes.

🔍 Search Error Database

🛠️ Related Fixes

How to Fix: Pc crashes shortly after launching game (rainbow

Pc crashes shortly after launching game, possible cause: outdated grap

How to Fix: Installing an APK on a locked down phone

Installing an APK on a locked down phone: Try using a rooted device, e

How to Fix: FPS drops

FPS drops in games can be caused by high system resource usage, outdat