One question,suppose some file on my server.I want to access those file by HFS.It is possible?
please be more specific. your question have many interpretations, i can't answer them all.

When I access http://onlineupd.cjb.net/ it ask username and password.
when you access that address it's because you
want to contact your HFS.
IF you HAVE a ROUTER, you must not use "onlineupd" on your computer, only others can. Indeed, by doing so, you are accessing your router, and not your HFS. The password is the one of your router.
IF you have NO ROUTER, then you are accessing HFS, and that is the password you set in HFS.
in NO CASE you are supposed to enter your cjb password there.