On Wed, 2022-05-25 at 16:48 +0200, Carsten Klein wrote: > So, forget about the packager. With core PostgreSQL tools it is possible > to have more than one cluster. How do you specify what cluster to > connect to with psql or pg_dump? Do I have to specify the cluster's > corresponding Unix domain socket directory via the --host option? With -h you specify the directory containing the socket, and with -p (port) the name. So you could psql -h /var/run/postgresql -p 5555 to use the socket /var/run/postgresql/.s.PGSQL.5555 Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com