The server works fine when there's no www authentication.

But after I setup my dns and add my domain in mysql's domain table, my ua always receives 483 error.

After reading the following words, I add alias in my config file.

But still it doesn't work.

In both cases, the reason is probably an error in request routing script

which caused an infinite loop. You can easily verify whether this happens

by watching SIP traffic on loopback interface. A typical reason for misrouting

is a failure to match local domain correctly. If a server fails to recognize

a request for itself, it will try to forward it to current URI in believe it

would forward them to a foreign domain. Alas, it forwards the request to itself

again. This continues to happen until value of max_forwards header field reaches

zero or the request grows too big. Solutions is easy: make sure that domain matching

is correctly configured. A quick way to achieve that is to introduce a config

option to ser.cfg: alias=domainname, where domainname shall be replaced with

name of domain, which you wish to server and which appears

Will someone be kind enough to make some useful suggestions?

Any help would be appreciated.

Thanks in advance.