Hello, On 1/16/12 8:19 PM, David wrote: at this moment, there are connectors for memcached and redis, which are nosql servers. They don't implement DB interface (to be a replacement for db_mysql module, for example), but offer config file functions to interact with nosql servers. Then, for doing authentication, simply load only auth module, query the db server via config functions and get the password in a variable and use pv_*_authenticate(...) functions to achieve user authentication: http://kamailio.org/docs/modules/devel/modules/auth.html#pv_www_authenticate Of course, if you do the development of a new module to connect to such server, implementing the db api might be more convenient and then use auth_db module. Btw, today it was announced availability in near future (see earlier messages on this list) of cassandra connector, I don't know if it implements db api or not, since it is not yet in the public repository. Cheers, Daniel -- Daniel-Constantin Mierla -- http://www.asipto.com http://linkedin.com/in/miconda -- http://twitter.com/miconda