Unix sockets

By adding junixsocket you can obtain a socket factory that works with the driver. Code can be found here and instructions here

Dependencies for junixsocket are :

<dependency>
  <groupId>com.kohlschutter.junixsocket</groupId>
  <artifactId>junixsocket-core</artifactId>
  <version>2.5.1</version>
</dependency>

Simply add ?socketFactory=org.newsclub.net.unix.AFUNIXSocketFactory$FactoryArg&socketFactoryArg=[path-to-the-unix-socket] to the connection URL.

For many distros the default path is /var/run/postgresql/.s.PGSQL.5432