First of all, sorry for not posting it in the appropriate forums...
I live in a small african country (Mauritius) with a sole ISP. One of my good friends maintain a website (www.passeoucasse.com) which happens to be a fairly popular website down here (200 unique visitors per day). The site is hosted by thinkhost.com.
For the last 2 days, the website has been unaccessible by LOCAL web surfers. Traceroute is possible but real surfing can't be done. Thinkhost.com, the hoster, says that there is no problem on their side and that everything seems to be OK. People from country nearby in Africa or Reunion island say that they can surf on passeoucasse.com.
I suspect that the site's IP has been blocked (since thinkhost.com itself is unaccessible). I'd like to have your opinion on it, whether this is possible and how, what are the techniques involved in doing this kind of banning and lastly, what can be done to bypass it. Thanx.
Is there a political reason why this site might be blocked by the national ISP? Since you're behind the scenes, you are aware that this site uses a redirecter, and that www.passeoucasse.com does not point directly to the thinkhost site, right? If you traceroute www.passeoucasse.com, you will go to 18.104.22.168, which is not at thinkhost. This site redirects to ahmad.thinkhost.com which is 22.214.171.124. See if you can surf directly to ahmad.thinkhost.com. See if you can traceroute to 126.96.36.199. If you can, then try to directly telnet different ports on 188.8.131.52 such as port 80, port 25, port 21. If you can get banners up on those ports, then they're not blocked.
Political reasons, no. Sometimes back, our ISP (which is a monopoly), blocked a site called visionear (made by one local person) because unofficially, it was having too much hits. FYI, the ISP has got the only portal of the island running (www.servihoo.com).
I have been able to traceroute passeoucasse.com. Here is what I get
1 3101 ms 2563 ms 3711 ms 184.108.40.206
2 3232 ms 2863 ms 2402 ms 220.127.116.11
3 3691 ms 3194 ms 2470 ms BVI-CAT.telecomplus.net [18.104.22.168]
4 3172 ms 3282 ms 3518 ms P-F-1-0-0.telecomplus.net [22.214.171.124]
5 1199 ms 1099 ms 808 ms S10-0-1.PASAR1.Pastourelle.opentransit.net [193.
6 1600 ms 900 ms 1048 ms P0-0.PASBB1.Pastourelle.opentransit.net [193.251
7 1096 ms 608 ms 901 ms P4-0.PASCR3.Pastourelle.opentransit.net [193.251
8 1041 ms 929 ms 507 ms So0-0-0.TELBB1.Telehouse.opentransit.net [193.25
9 350 ms 340 ms * Cw-Euro.GW.opentransit.net [126.96.36.199]
10 348 ms 340 ms 360 ms bcr1-so-2-0-0.Paris.cw.net [188.8.131.52]
11 420 ms 440 ms 431 ms dcr1-loopback.Washington.cw.net [184.108.40.206]
12 421 ms 439 ms 440 ms agr2-so-0-0-0.Washington.cw.net [220.127.116.11]
13 430 ms 430 ms 429 ms bar2-loopback.Washington.cw.net [18.104.22.168]
14 429 ms 430 ms 440 ms internap.Washington.cw.net [22.214.171.124]
15 440 ms 430 ms 438 ms border1.ge3-1-bbnet1.ext1.wdc.pnap.net [216.52.1
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
Okay, something strange is up. When I looked up www.passeoucasse.com earlier, I got the IP 126.96.36.199 (that is the redirector that points to ahmed.thinkhost.com. Your traceroute shows that it is 188.8.131.52, and just looking it up now, I'm getting 184.108.40.206. The TTL on the DNS for the name is 1800 seconds or 30 minutes. It appears to be changing frequently. I am also unable to traceroute all the way to www.passeoucasse.com. So it appears to be the redirector site that is screwed up. It could be that people outside your region were holding on to the old DNS entry which might still work.
Try putting ahmed.thinkhost.com in your browser. Web servers don't give banners, not having your connection time out or be refused means that you are connected to the web server there and it isn't blocked.