YouTube was blocked again on the evening of 23 March 2009, and this time with the highest level of blockade, including: IP block, "URL keywords censors" and domain name hijack, among them the most powerful one is domain hijack which cause OpenDNS to fail.
What makes YouTube being treated in this way again and again? Perhaps we can have a brief idea about the reason behind from here. But more or less one thing is clear, that is, the river crab has determined to exterminate the grass-mud horse. Will the grass-mud horse survive in the end? I'm not sure, but I'm afraid it's the most hopeless.
I tried to nslookup www.youtube.com, unexpectedly found 8 fake IP: 4.36.66.178 202.106.1.2 216.234.179.13 209.145.54.50 203.161.230.171 211.94.66.147 64.33.88.161 and 202.181.7.85
After investigation, YouTube has 5 usually used IPs: 208.117.236.70 208.117.236.71 208.117.236.75 208.117.236.76 and 208.65.153.238, among them two of most frequently used 208.117.236.71 and 208.65.153.238 is not accessable.
From the route tracing photo below, we can see the real IPs are blocked. Everytime I Ping/nslookup youtube.com will show out fake IPs, only after repeating for several times will find the real ones.
Now, the other reserved IPs (such as http://208.117.236.76) are still accessable, but once you want to watch any videos, it will always shows an error: We're sorry this video is no longer available. This is one the fuctions of the "URL Keyword censors" mentioned above.
Last time YouTube being blcoked was on 3 March this year, it last for 3 days.
