>>>>> "TE" == Thomas Eibner <[EMAIL PROTECTED]> writes: TE> It seems that everything concerning vhosts is set up in http_protocal.c TE> and that the vhost is set right after Apache has read the request from TE> the client and then calling ap_update_vhost_from_headers to actually TE> determine the vhost. All this happens before your module gets to run. Thanks for the info. I realized just now (about a minute ago) that localhost.mailermailer.com and localhost.m1e.net are different names that point to 127.0.0.1, so the proxy front-end can do it using the domain names, and the back-end can distinguish the names just fine. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D. Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-240-453-8497 AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/