I'm starting to run mysql on another server and then I was not able to run ser with:

modparam ("userloc", "db_mode", 2) or modparam ("userloc", "db_mode", 1)

In ser.cfg I have inserted: modparam("usrloc", "db_url", "sql://ser:heslo@10.2.1.1/ser") and modparam("auth_db", "db_url", "sql://ser:heslo@10.2.1.1/ser")

what id the problem? thanks