Hi, While debugging freeradius build, following error is interpreted with odbc connector: rlm_sql_unixodbc: IM002 [unixODBC][Driver Manager]Data source name not found and no default driver specified rlm_sql_unixodbc: Connection failed rlm_sql_unixodbc: Socket destructor called, closing socket rlm_sql (sqlADSL): Opening connection failed (0) rlm_sql (sqlADSL): Removing connection pool /usr/app/radius/etc/raddb/mods-enabled/sql[20]: Instantiation failed for module "sqlADSL" My SQL config is as below: sql sqlADSL { driver = "rlm_sql_unixodbc" server = "RadiusDbProd" port = 3306 login = "radius" password = <<< secret >>> radius_db = "RADSP01" read_groups = yes read_profiles = yes read_clients = no delete_stale_sessions = yes sql_user_name = "" logfile = "/usr/app/Radiuslogs/anathana/sqltrace_ADSL.sql" default_user_profile = "" client_query = "SELECT id,nasname,shortname,type,secret FROM nas" safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /" accounting { reference = ".query" type { accounting-on { } accounting-off { } start { } interim-update { } stop { } } } post-auth { reference = ".query" } } Could you help please..? ---- *Thanks & Kind Regards,* Saurabh LAHOTI. *Ideas enlighten Innovation**!!!* Please consider the environment before printing this mail..!!