Re: Help finding failure point accessing PLUG Website

On Mon, 2005-02-14 at 22:25 -0700, Kevin Brown wrote:
> Craig White wrote:
>
> > On Mon, 2005-02-14 at 21:22 -0700, Joseph Sinclair wrote:
> >
> > from a dsl client of mine (service by getnet) 1st hop obscured
> >
> > # traceroute -n www.plug.phoenix.az.us
> > traceroute to plug.phoenix.az.us (66.98.190.6), 30 hops max, 38 byte
> > packets
> > 1 216.19.999.999 46.558 ms 40.953 ms 42.937 ms
> > 2 216.19.201.247 43.712 ms 43.949 ms 43.222 ms
> > 3 216.19.201.248 45.150 ms 44.466 ms 44.963 ms
> > 4 38.112.7.25 46.599 ms 45.778 ms 44.854 ms
> > 5 154.54.1.145 72.304 ms 66.997 ms 67.612 ms
> > 6 38.112.12.186 72.025 ms 70.554 ms 136.376 ms
> > 7 207.218.245.110 71.009 ms 68.639 ms 68.024 ms
> > 8 * * *
> >
> > from a sprint broadband client of mine
> >
> > # traceroute -n www.plug.phoenix.az.us
> > traceroute to plug.phoenix.az.us (66.98.190.6), 30 hops max, 38 byte
> > packets
> > 1 192.168.0.254 0.221 ms 0.174 ms 0.164 ms
> > 2 10.252.61.1 21.723 ms 23.587 ms 22.688 ms
> > 3 24.221.37.1 31.248 ms 21.940 ms 21.810 ms
> > 4 160.81.22.53 28.790 ms 28.902 ms 29.137 ms
> > 5 144.228.173.22 29.542 ms 29.396 ms 29.646 ms
> > 6 168.215.54.101 29.135 ms 30.699 ms 30.938 ms
> > 7 66.192.255.90 60.317 ms 59.032 ms 59.917 ms
> > 8 168.215.53.62 64.508 ms 65.799 ms 66.661 ms
> > 9 66.192.246.123 64.547 ms 63.618 ms 139.987 ms
> > 10 216.54.253.2 66.673 ms 64.244 ms 64.885 ms
> > 11 207.218.245.110 97.780 ms 100.198 ms 98.326 ms
> > 12 * * *
> >
> > from a T1 client of mine (first hop obscured)
> >
> > # traceroute -n www.plug.phoenix.az.us
> > traceroute to plug.phoenix.az.us (66.98.190.6), 30 hops max, 38 byte
> > packets
> > 1 216.19.999.999 4.425 ms 2.272 ms 2.386 ms
> > 2 216.19.222.233 4.279 ms 4.268 ms 4.297 ms
> > 3 216.19.201.248 4.483 ms 4.362 ms 4.144 ms
> > 4 38.112.7.25 5.345 ms 7.189 ms 5.691 ms
> > 5 154.54.1.145 27.906 ms 27.445 ms 28.420 ms
> > 6 38.112.12.186 29.159 ms 29.146 ms 29.384 ms
> > 7 207.218.245.110 29.055 ms 30.716 ms 28.704 ms
> > 8 * * *
> >
> > problem doesn't change...
> > # host 207.218.245.110
> > 110.245.218.207.in-addr.arpa domain name pointer
> > ivhou-207-218-245-110.ev1.net.
> >
> > Houston - I think we've got a problem
> >
> > They be the problem - I'm sure someone else has already pointed this
> > out.
>
> Traceroute to ASU from anywhere and you get the same thing. The border router
> is just choosing not to respond. So, that leaves two or three places that are
> the problem. The browser in use or the webserver. Since it is a vhost it
> requires that the server be able to figure out which host the browser really
> wanted based on the headers the browser sent in the request. So, either the
> browser is munging the headers that it sends and so the server doesn't respond,
> or the server isn't correctly interpreting the headers to respond and is just
> dropping the request.
>
> Since the site works for others (myself included) it leaves something about
> either the clients browser or they don't like him for some reason (blacklisted
> by some security software or something, so a firewall at the system dumps him).
----
perhaps - you seem to know a lot more about this than I

# traceroute -nI www.plug.phoenix.az.us
traceroute to plug.phoenix.az.us (66.98.190.6), 30 hops max, 38 byte
packets
1 216.19.999.999 4.893 ms 2.724 ms 2.576 ms
2 216.19.222.233 4.229 ms 4.013 ms 3.827 ms
3 216.19.201.248 4.241 ms 4.255 ms 4.136 ms
4 38.112.7.25 5.148 ms 5.303 ms 7.768 ms
5 154.54.1.145 27.315 ms 28.275 ms 27.396 ms
6 38.112.12.186 28.060 ms 29.382 ms 28.346 ms
7 207.218.245.110 28.048 ms 28.268 ms 28.443 ms
8 66.98.190.6 29.005 ms 28.367 ms 28.481 ms

gets there in a hurry...

from man traceroute

  -I     Use ICMP ECHO instead of UDP datagrams.

Craig

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