On Sun, 20 Nov 2016 08:25:18 +0200 shimi <linux...@shimi.net> wrote: > I believe it's called a CDN and/or local compute clusters and the > purpose of it is to give you a better user experience, which is a > Good Thing (TM). > snip ... snip ... snip > > Why do you think it's a problem and are trying to avoid it? >
Thanks. I agree that this is "normally" a Good Thing (TM). So I guess I have to explain my problem. For a course I'm doing, I had to write traceroute in Python - re-invent the wheel :-) My program works, but I noticed it never reaches www.google.com so I checked the "real" traceroute and found the same behaviour. It seems that neither my program nor the real traceroute handle this properly - i.e. they never report that they've reached the final hop. I've included traceroute www.godaddy.com and traceroute www.google.com for comparison. You can see that traceroute www.google.com never reaches the address it's trying to reach - 213.57.24.49 [solomon@shlomo1 ~]$ sudo traceroute www.godaddy.com traceroute to www.godaddy.com (23.44.253.116), 30 hops max, 60 byte packets 1 router-1.solomon (10.0.0.138) 0.610 ms 0.979 ms 0.977 ms 2 core-213-57-3-7.ptr.hotnet.net.il (213.57.3.7) 15.370 ms 15.753 ms 16.148 ms 3 ae7.101.hfa.mx-lns.con.hotnet.net.il (213.57.3.221) 16.544 ms 16.543 ms 16.553 ms 4 core-213-57-3-217.ptr.hotnet.net.il (213.57.3.217) 17.345 ms 18.132 ms 18.524 ms 5 207.232.21.146 (207.232.21.146) 20.941 ms 20.948 ms 20.944 ms 6 core1-TenGigE0-4-0-1.hfa.nv.net.il (212.143.8.226) 21.311 ms core1-0-5-0-21-edge1.hfa.nv.net.il (212.143.7.173) 22.651 ms 22.379 ms 7 cdn-sw1-1-35-core1-2-5-hfa.hfa.nv.net.il (212.143.7.252) 21.129 ms cdn-sw1-1-45-core1.hfa.nv.net.il (212.143.7.209) 18.333 ms cdn-sw1-1-43-core1.hfa.nv.net.il (212.143.7.201) 19.097 ms 8 a23-44-253-116.deploy.static.akamaitechnologies.com (23.44.253.116) 18.299 ms 18.290 ms 18.703 ms [solomon@shlomo1 ~]$ sudo traceroute www.google.com traceroute to www.google.com (213.57.24.49), 30 hops max, 60 byte packets 1 router-1.solomon (10.0.0.138) 0.943 ms 0.937 ms 0.934 ms 2 core-213-57-3-7.ptr.hotnet.net.il (213.57.3.7) 15.313 ms 15.720 ms 16.114 ms 3 ae7.101.hfa.mx-lns.con.hotnet.net.il (213.57.3.221) 16.128 ms 16.526 ms 16.526 ms 4 core-213-57-3-217.ptr.hotnet.net.il (213.57.3.217) 21.311 ms 21.692 ms 21.675 ms 5 * * * 6 * * * 7 * * * 8 * * * 9 * * * 10 * * * 11 * * * 12 * * * 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 * * * 19 * * * 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * 29 * * * 30 * * * [solomon@shlomo1 ~]$ -- Shlomo Solomon http://the-solomons.net Sent by Claws Mail 3.11.1 - KDE 4.14.5 - LINUX Mageia 5 _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
