Pgadmin3 New Server error authentication failed for user "Postgres" workaround

Transferred from: http://blog.csdn.net/tingyuanss/article/details/43763899

New server with pgadmin3 error Peer authentication failed for user "Postgres"

Find the answer on StackOverflow, this error occurs because:

Peer authentication is the default configuration, and if your computer user name is the same as your Postgres database name, then this error does not occur and you do not need to set a password for your database.

There is also a MD5 authentication, which requires a password.

My Computer username and my database name are inconsistent, so I need to change the peer authentication to MD5 authentication and then set the password for the database.

Where to change?

/etc/postgresql/9.3/main/pg_hba.conf

Execute command

Locate the following line:

Local all Postgres peer

Change into

Local all Postgres MD5

Then restart PostgreSQL server

sudo service postgresql restart

Pgadmin3 New Server error authentication failed for user "Postgres" workaround