Date: Wed, 26 Jul 2000 17:50:35 -0400 (EDT) From: dkrapf@UU.NET (Donald E. Krapf) To: stable@freebsd.org Subject: Re: one IP, multiple hosts. Message-ID: <QQizoh25820.200007262150@npiserve0.corp.us.uu.net> In-Reply-To: <Pine.BSF.4.10.10007262326050.65280-100000@dns.comrax.com> from "noor@comrax.com" at Jul 26, 2000 11:30:38 PM
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You misunderstand *Virtual* hosts. Apache's NameVirtualHost allows you to host multiple websites on a single computer with a single IP address. This computer acts like multiple hosts (i.e. Virtual hosts), as far as web service goes, but is not really different hosts. It works by examining the HTTP/1.1 "HOST:" header to associate a request with a website. Since the multiple hosts are a figment of the webserver's imagination, the network monitoring tools don't know anything about them. If you happen to catch an HTTP request, you can read the "HOST:" header to see which virtual host it is destined for. noor@comrax.com writes: > Hi all, > > I'm wondering about a certain issue I would like to get help on. Suppose > you have one IP, 192.168.10.80, which is the IP of many hosted domains > (and their respective hosts) on a certain web server. > > Using Apache's NameVirtualHost and VirtualHost directives, I can direct > the flow of packets being sent to the same IP to different hosts. > > My question is: using tcpdump, trafshow, snort, or any other program I > don't know about, how can I know which host is being accessed when the > only information I got is: IP address, and port number (80 for web) ? > > Thanks for your help in advance. > > Noor Don -- Don Krapf dkrapf@uu.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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