Date: Tue, 2 Apr 2002 22:24:51 -0600 From: "Chad Albert" <chadalbert@mchsi.com> To: <freebsd-questions@freebsd.org> Subject: Re: Netcraft survey ... what ports? Message-ID: <002001c1dac7$80e34690$14010f0a@spgcalbert> References: <5.1.0.14.0.20020402210936.02b8edf8@pop3s.schulte.org> <5.1.0.14.0.20020402213456.037854f8@pop3s.schulte.org>
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In case you have not seen this, here is Netcraft's explanation of how they come up with their info http://uptime.netcraft.com/up/accuracy.html If you want to see your HTTP headers from a third party off site box, go here http://www.network-tools.com ----- Original Message ----- From: "Christopher Schulte" <schulte+freebsd@nospam.schulte.org> To: "Marc G. Fournier" <scrappy@hub.org> Cc: <freebsd-questions@freebsd.org> Sent: Tuesday, April 02, 2002 9:42 PM Subject: Re: Netcraft survey ... what ports? > At 11:31 PM 4/2/2002 -0400, Marc G. Fournier wrote: > > ># sysctl net.inet.tcp.rfc1323=1 > >net.inet.tcp.rfc1323: 1 -> 1 > > Looks good. > > >4.5-STABLE FreeBSD 4.5-STABLE #6: Mon Mar 25 21:01:05 CST 2002 > > I don't have any -STABLE boxes these days, but I do have > > 4.5-RELEASE-p2 #0: Sat Mar 9 07:08:14 CST 2002 > > And netcraft detects this OS and uptime (with tcp extensions enabled) just > fine. > > >Any idea on how it detects the OS? Righ tnow, I have all ports in > >inetd.conf disabled, which I believe is the default with FreeBSD now ... > >do some of those have to be open'd for the detection to work? Would be a > >shame for 'FreeBSD usage' to drop in netcraft stats as ppl upgrade to the > >more recent versions :( > > The only port you'd need open is port 80, so netcraft can first query your > webserver. It uses those TCP/IP packets to determine OS and uptime. > > http://uptime.netcraft.com/up/accuracy.html#os > > -- > Christopher Schulte > http://www.schulte.org/ > Do not un-munge my @nospam.schulte.org > email address. This address is valid. > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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