--- a/postgres.rst	Sun Dec 16 22:40:03 2018 +0200
+++ b/postgres.rst	Sun Dec 16 22:43:16 2018 +0200
@@ -35,6 +35,13 @@
 https://wiki.debian.org/PostgreSql
   Debian wiki instructions.
 
+Check locations
+===============
+::
+
+  SHOW hba_file;
+  SHOW config_file;
+
 List databases, schemas and tables
 ==================================