This isn't related to php but there are many knowledgeable people here that I though might find this curious. I host an IP based site. Based on the host header that is sent to the site, I pull different content from a database. When the host header is not found in the database, I send an email to me telling me that someone tried to access a site for which we have no content. Now for the weird part. Once in a while I get a message from this site saying that www.yahoo.com has not been setup. It seems as though someone has a host entry for www.yahoo.com that points to my IP. Or someone's browser is messing up the referrer and host header. But if that's the case they should not be able to get to and virtual site anywhere. Has anyone heard of anything like this or is this something completely new? Charles Killmer