Hello, I've installed FreeRADIUS (3.0.4-6.el7) on CentOS 7 from the repositories with the plan to use unixODBC and FreeTDS to authenticate against a MSSQL database; however, running radiusd -X results in this (similar error when using freeradius-3.0.8-3.fc23): rlm_sql (sql): Driver rlm_sql_unixodbc (module rlm_sql_unixodbc) loaded and linked rlm_sql (sql): Attempting to connect to database "FreeRADIUS" rlm_sql (sql): Initialising connection pool pool { start = 5 min = 4 max = 32 spare = 3 uses = 0 lifetime = 0 cleanup_interval = 30 idle_timeout = 60 retry_delay = 1 spread = no } rlm_sql (sql): Opening additional connection (0) rlm_sql_unixodbc: 01000 [unixODBC][Driver Manager]Can't open lib '/usr/lib64/libtdsodbc.so.0.0.0' : ?w????: undefined symbol: get_vtable rlm_sql_unixodbc: SQL down 08003 [unixODBC][Driver Manager]Connnection does not exist rlm_sql_unixodbc: Can't allocate the statement rlm_sql_unixodbc: Socket destructor called, closing socket rlm_sql (sql): Opening connection failed (0) rlm_sql (sql): Removing connection pool /etc/raddb/mods-enabled/sql[20]: Instantiation failed for module "sql" Other users faced this 'get_vtable' issue but it doesn't seem that anyone found a solution, any help is appreciated. Thanks