This may be a lot simpler then you think ;) Who is your ISP? I have InsightBB as mine and I have the same issue.
Your computer is most likely set to obtain it's DNS automatically. What's happening is your computer is making a request to the DNS server for www.domain_that_does_not_exist.com to the DNS server that is has obtained automatically (your ISPs). I don't know the specifics on the server side, but this in turn initiates a process where in you request is redirected on the server side and you are delivered the offending page in your browser. I troubleshot as follows: 1) I did a ping on a domain that does not exist (fdfddfdf.com) and it returned an IP address and then timed out. 2) I did a reverse lookup on that IP address and it resolved to ns1.level3.com. 3) I then did a tracert on the same domain name. It made it's way to unknown.level3.com and then timed out. I started to think, "Hmmmm". Changed my DNS settings to a different nameserver. Problem went away. Call you ISP and complain. Brendan Canty On Sep 27, 11:21 am, Frank Hecker <[EMAIL PROTECTED]> wrote: > [EMAIL PROTECTED] wrote: > > Mac OS X 10.4.10 > > Firefox 2.0.0.7 > > > Whenever I enter a domain that does not exist, I am automatically > > forwarded to the url: > >http://www33.not-found-entry.org/search?qo=... > > Where ... is the nonexistent domain name. > > > Consequently, this happens in Safari as well, which makes me think > > it's a setting somewhere on my Mac, but it can't hurt asking here. > > This might be a consequence of your DNS settings. Look at the file > /etc/resolv.conf and see what it gives for "nameserver". Also look in > your system preferences under the network settings to see if there's a > setting there for "DNS Servers". > > There are commercial services like OpenDNS (http://www.opendns.com/) > that provide DNS name resolution services at no charge in return for > displaying ads when you enter a name that's not found. You appear to > have encountered a similar service, which may or may not be a legitimate > business. > > Note that on OS X (I think by default) the system DNS server settings > can be blank, with OS X getting its DNS server information as a > byproduct of getting an IP address through DHCP. So if you connect to > the net using DHCP (which is almost always the case for consumer Macs) > then the network operator can supply their own DNS server information, > and pull tricks like the one you encountered. > > Do you see this on your home network, or when you're on a "foreign" > network, e.g., hotel network, public wifi hotspot, etc? > > Frank > > -- > Frank Hecker > [EMAIL PROTECTED] _______________________________________________ dev-security mailing list [email protected] https://lists.mozilla.org/listinfo/dev-security
