Postgresql+freeradius configuration

[msah at otitelecom.bj]

Good morning!!!!!
I have successfully configured  freeradius server with using postgresql database
to storage users which i want to authenticate.
when i put it in debug mode to test he works well. But when I run it as deamon
the  server radius don't see the postgresql server. In the radius's log file i
look this:
 Driver rlm_sql_postgresql (module rlm_sql_postgresql) loaded and linked
Info: rlm_sql (sql): Attempting to connect to radiusadmin at localhost:/radiusdb
Error: rlm_sql_postgresql: Couldn't connect socket to PostgreSQL server
radiusadmin at localhost:radiusdb
Error: rlm_sql_postgresql: Postgresql error 'could not connect to server:
Permission denied ?Is the server running on host "localhost" and accepting
?TCP/IP connections on port 5432? '
Error: rlm_sql (sql): Failed to connect DB handle #0
Info: Ready to process requests.
Please help me.