If your PostgreSQL server is running on the same server as the webserver, phpPgAdmin’s default configuration will work “out-of-the-box”; if not, you’ll need to edit the configuration file located at conf/config.inc.php. It should be self-explanatory. There’s also a “backup” copy of the installation file “conf/config.inc.php-dist“.

One problem which occurs quite often is the error message “Login disallowed for security reasons“, which occurs when trying to login as a user with an empty password, a common situation on (presumably well-protected) development machines. To enable this kind of login, set the option $conf['owned_only'] in conf/config.inc.php to true.

‘extra_login_security’ =

If extra login security is true, then logins via phpPgAdmin with no password or certain usernames (pgsql, postgres, root, administrator)
will be denied.