Hi All I just try to config freeradius using either Mysql or LDAP. But i get same error like bellow : [errror Mysq] Fri Mar 8 13:44:46 2013 : Error: Could not link driver rlm_sql_mysql: rlm_sql_mysql.so: cannot open shared object file: No such file or directory Fri Mar 8 13:44:46 2013 : Error: Make sure it (and all its dependent libraries!) are in the search path of your system's ld. Fri Mar 8 13:44:46 2013 : Error: /usr/local/etc/raddb/sql.conf[22]: Instantiation failed for module "sql" Fri Mar 8 13:44:46 2013 : Error: /usr/local/etc/raddb/sites-enabled/default[177]: Failed to find "sql" in the "modules" section. Fri Mar 8 13:44:46 2013 : Error: /usr/local/etc/raddb/sites-enabled/default[69]: Errors parsing authorize section. i've read in some article that it's solved by installed mysql-devel package. In this case i've installed libmysqlclient-dev on my ubuntu 12.04 But still get same error. It's also happen on my freeradius ldap? [error LDAP] /usr/local/etc/raddb/modules/ldap[29]: Failed to link to module 'rlm_ldap': rlm_ldap.so: cannot open shared object file: No such file or directory /usr/local/etc/raddb/sites-enabled/default[305]: Failed to find "ldap" in the "modules" section. /usr/local/etc/raddb/sites-enabled/default[305]: Failed to parse "ldap" How i can solve this issue ? Thanks -- *M.Iftakhul Anwar* Meruvian Integrator High Performance Computing / Cloud Computing (HPC/CC) Office Phone : 021-93586577 Mobile Phone : 085215331477 Blog : http://blog.mervpolis.com/roller/anwar FB : http://www.facebook.com/troya.adromeda Website : www.meruvian.org