Monday, March 9, 2009

page cannot be displayed bsnl

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I frequently download unreleased bands and publc releases of linux distros from suprnova.org. Recently, however, I have been unable to connect to the page directly. Usually I just see the java ad and the main page errors out.

You can prove to yourself that it is not your computer’s fault by using a proxy server or a proxy service Like Proxy Solution:

Next, you can see where you error occurs by doing the following command from a dos command box:

tracert suprnova.org

The following results suggest that this is not the fault of the user’s computer. Instead the route is getting lost upstream:

67 ms 67 ms 68 ms pop1-cha-P4-0.atdn.net [66.185.132.45]
8 68 ms 67 ms 66 ms bb2-cha-P0-0.atdn.net [66.185.138.66]
9 77 ms 77 ms 78 ms bb2-ash-P13-0.atdn.net [66.185.152.50]
10 78 ms 79 ms 80 ms pop3-ash-P1-0.atdn.net [66.185.148.211]
11 76 ms 76 ms 76 ms GlobalCrossing.atdn.net [66.185.136.10]
12 56 ms 69 ms 59 ms gblx.ge-0-1-1.cr1.iad1.us.nlayer.net [69.31.31.201]
13 145 ms 141 ms 142 ms 0.so-0-3-0.cr1.sfo1.us.nlayer.net [69.22.142.78]
14 146 ms 145 ms 146 ms ge1-1.hr1.sfo1.us.nlayer.net [69.22.143.2]
15 142 ms 139 ms 138 ms atrivo.ge1-4.hr1.sfo1.us.nlayer.net [69.22.128.250]
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.

You can confirm this by doing a traceroute from another computer on the web somewhere. Here’s the results from http://www.net.princeton.edu/traceroute.html

tracing path from www.net.princeton.edu to 69.50.170.99 …

traceroute to 69.50.170.99 (69.50.170.99), 30 hops max, 40 byte packets
1 gigagate1 (128.112.128.114) 0.558 ms 0.299 ms 0.278 ms
2 vgate1 (128.112.12.22) 0.444 ms 0.324 ms 0.313 ms
3 209.92.72.201 (209.92.72.201) 2.893 ms 4.871 ms 2.311 ms
4 165.113.8.66 (165.113.8.66) 3.245 ms 2.561 ms 2.969 ms
5 207.106.96.35 (207.106.96.35) 8.285 ms 8.823 ms 12.041 ms
6 ge-0-3-0.cr1.iad1.nlayer.net (206.223.115.61) 19.348 ms 9.346 ms 9.686 ms
7 0.so-0-3-0.cr1.sfo1.us.nlayer.net (69.22.142.78) 90.249 ms 88.690 ms 88.939 ms
8 ge1-2.hr1.sfo1.us.nlayer.net (69.22.143.6) 90.058 ms 91.500 ms 91.936 ms
9 atrivo.ge1-4.hr1.sfo1.us.nlayer.net (69.22.128.250) 86.357 ms 86.565 ms 84.392 ms
10 69.50.170.99 (69.50.170.99) 84.559 ms 87.131 ms 97.180 ms

So as you can see, our path cannot get to suprnova’s ip address of 69.50.170.99 while other computers on the internet can.

What can you do? Obviously, somebody upstream has decided to block suprnova to a large part of the world. I don’t know if it is the ISP or who… but somebody is blocking it.

For now, the only work around is to use a proxy. Some good proxy sites are the following:
1. Proxy Solution.
2. Proxy List.