Fix: PostgreSQL Connection Refused – Could Not Connect to Server
How to fix the PostgreSQL error 'could not connect to server: Connection refused' caused by server not running, wrong host/port, pg_hba.conf, or firewall issues.
Tag: postgresql
3 articles
Fix: PostgreSQL ERROR: duplicate key value violates unique constraint
How to fix 'duplicate key value violates unique constraint' in PostgreSQL by resetting sequences, using upserts, fixing bulk imports, and handling concurrent inserts.
Fix: psql: error: connection to server refused (PostgreSQL)
How to fix 'could not connect to server: Connection refused', 'psql: error: connection to server at localhost port 5432 failed', and other PostgreSQL connection refused errors on Linux, macOS, Windows, and Docker.