how to change the port number for the Postgres server

[Jessica Richard <rjessil@xxxxxxxxx>]

Everything was running fine under the default number 5432. After the port number was changed to another number  in postresql.conf file and the server was restarted, dblink is broken, it is still looking for the old port number 5432... not sure if everything else is broken as well... 

So, how to change the port number cleanly? There other Postgis components on the system too.

Thanks,
Jessica

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