PostgreSQL Global Development Group PostgreSQL Database Server — Default Password
Default username and password for the PostgreSQL Global Development Group PostgreSQL Database Server: postgres / (blank). Learn how to log in and how to change the default credentials.
On a fresh Linux installation (Debian, Ubuntu, RHEL/CentOS), PostgreSQL creates the 'postgres' OS user and database superuser with no password set, and configures local connections via peer authentication. This allows full superuser access via 'sudo -u postgres psql' with no password prompt — the OS kernel validates the connecting process runs as the 'postgres' OS user. Some distributions use the 'trust' method instead, allowing any local user to connect as postgres without credentials. No password needs to be bypassed; none exists. Applies to all PostgreSQL versions 9.x through 18.x.
| Benutzername | Passwort | Zugriff | Hinweise |
|---|---|---|---|
postgres | (leer / keine) | Database | Peer (OS user matching) or trust authentication on local socket. Run as postgres OS user: sudo -u postgres psql. Change auth to scram-sha-256 in pg_hba.conf for production. |
Verantwortungsvolle Nutzung
Diese Datenbank listet öffentlich dokumentierte Standard-Zugangsdaten auf, damit Administratoren sie finden und ändern können. Verwenden Sie sie nur auf Systemen, die Ihnen gehören oder die Sie testen dürfen.
Verwandte Geräte
postgres/∅Database∅/∅Databaseroot/∅Databaseinformix/informixWeb UIadmin/adminWeb UIroot/rootWeb UI