Comments on: Google 提供 Public DNS Resolver http://blog.gslin.org/archives/2009/12/04/2176/google-%e6%8f%90%e4%be%9b-public-dns-resolver/ 幹壞事是進步最大的原動力 Wed, 23 May 2012 00:45:00 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Gea-Suan Linhttp://blog.gslin.org/archives/2009/12/04/2176/google-%e6%8f%90%e4%be%9b-public-dns-resolver/comment-page-1/#comment-305235 Gea-Suan Lin Sun, 06 Dec 2009 18:29:07 +0000 http://blog.gslin.org/?p=2176#comment-305235 不太對，主要是 Akamai/EdgeCast 資料庫的資料不夠正確吧？多實驗幾次可以發現台灣 DNS resolver 對外 query 的 IP address 是 72.14.202.94 (或是鄰近的 IP address)，而這些 IP address 資訊還沒有被更新。 不太對，主要是 Akamai/EdgeCast 資料庫的資料不夠正確吧？多實驗幾次可以發現台灣 DNS resolver 對外 query 的 IP address 是 72.14.202.94 (或是鄰近的 IP address)，而這些 IP address 資訊還沒有被更新。

]]> By: Royhttp://blog.gslin.org/archives/2009/12/04/2176/google-%e6%8f%90%e4%be%9b-public-dns-resolver/comment-page-1/#comment-305226 Roy Fri, 04 Dec 2009 14:29:43 +0000 http://blog.gslin.org/?p=2176#comment-305226 TTL LFT trace to google-public-dns-a.google.com (8.8.8.8):53/tcp 2 [9269] [CTIHK] 061244085xxx.ctinets.com (61.244.85.xxx) 2.3/2.0/1.9ms 3 [9269] [CTIHK] 061244055145.static.ctinets.com (61.244.55.145) 1.6/2.5/2.5ms 4 [9269] [CTIHK] 061238169053.ctinets.com (61.238.169.53) 2.7/2.5/2.7ms 5 [9269] [CTIHK] 061238225149.ctinets.com (61.238.225.149) 2.6/2.4/2.4ms 6 [9269] [CTIHK] 061244232217.static.ctinets.com (61.244.232.217) 2.5/2.8/2.7ms 7 [9269] [CTIHK] 061244232237.static.ctinets.com (61.244.232.237) 2.5/3.7/3.1ms 8 [15169] [GOOGLE] 72.14.216.173 3.6/4.2/4.1ms 9 [15169] [GOOGLE] 64.233.175.207 5.7/5.2/6.7ms 10 [15169] [GOOGLE] 209.85.241.58 4.9/5.2/4.8ms 11 [15169] [GOOGLE] 209.85.250.120 26.8/27.5/25.6ms 12 [15169] [GOOGLE] 209.85.243.23 25.5/25.1/33.2ms 13 [15169] [GOOGLE] 209.85.241.166 32.9/28.1/27.1ms 14 [15169] [LVLT-GOOGL-1-8-8-8] [target open] google-public-dns-a.google.com (8.8.8.8):53 27.0/26.0/27.4ms TTL LFT trace to google-public-dns-b.google.com (8.8.4.4):53/tcp 2 [9269] [CTIHK] 061244085xxx.ctinets.com (61.244.85.xxx) 3.1/2.0/1.9ms 3 [9269] [CTIHK] 061244055145.static.ctinets.com (61.244.55.145) 1.6/1.6/1.7ms 4 [9269] [CTIHK] 061238169053.ctinets.com (61.238.169.53) 2.4/2.9/2.7ms 5 [9269] [CTIHK] 061238225149.ctinets.com (61.238.225.149) 2.4/2.5/2.4ms 6 [9269] [CTIHK] 061244232217.static.ctinets.com (61.244.232.217) 2.6/2.7/2.7ms 7 [9269] [CTIHK] 061244232237.static.ctinets.com (61.244.232.237) 2.7/4.3/3.4ms 8 [15169] [GOOGLE] 72.14.196.149 5.6/4.0/4.1ms 9 [15169] [GOOGLE] 64.233.175.207 4.3/4.7/4.4ms 10 [15169] [GOOGLE] 209.85.241.56 5.2/4.2/4.2ms 11 [15169] [GOOGLE] 209.85.250.122 22.6/22.7/24.6ms 12 [15169] [GOOGLE] 209.85.250.101 24.7/25.7/25.4ms 13 [15169] [GOOGLE] 209.85.241.154 35.4/24.9/27.1ms 14 [15169] [LVLT-ORG-8-8] [target open] google-public-dns-b.google.com (8.8.4.4):53 25.7/25.7/25.8ms 我這邊trace過去都是去Google/Level3…原因是這個吧。 TTL LFT trace to google-public-dns-a.google.com (8.8.8.8):53/tcp
2 [9269] [CTIHK] 061244085xxx.ctinets.com (61.244.85.xxx) 2.3/2.0/1.9ms
3 [9269] [CTIHK] 061244055145.static.ctinets.com (61.244.55.145) 1.6/2.5/2.5ms
4 [9269] [CTIHK] 061238169053.ctinets.com (61.238.169.53) 2.7/2.5/2.7ms
5 [9269] [CTIHK] 061238225149.ctinets.com (61.238.225.149) 2.6/2.4/2.4ms
6 [9269] [CTIHK] 061244232217.static.ctinets.com (61.244.232.217) 2.5/2.8/2.7ms
7 [9269] [CTIHK] 061244232237.static.ctinets.com (61.244.232.237) 2.5/3.7/3.1ms
8 [15169] [GOOGLE] 72.14.216.173 3.6/4.2/4.1ms
9 [15169] [GOOGLE] 64.233.175.207 5.7/5.2/6.7ms
10 [15169] [GOOGLE] 209.85.241.58 4.9/5.2/4.8ms
11 [15169] [GOOGLE] 209.85.250.120 26.8/27.5/25.6ms
12 [15169] [GOOGLE] 209.85.243.23 25.5/25.1/33.2ms
13 [15169] [GOOGLE] 209.85.241.166 32.9/28.1/27.1ms
14 [15169] [LVLT-GOOGL-1-8-8-8] [target open] google-public-dns-a.google.com (8.8.8.8):53 27.0/26.0/27.4ms
TTL LFT trace to google-public-dns-b.google.com (8.8.4.4):53/tcp
2 [9269] [CTIHK] 061244085xxx.ctinets.com (61.244.85.xxx) 3.1/2.0/1.9ms
3 [9269] [CTIHK] 061244055145.static.ctinets.com (61.244.55.145) 1.6/1.6/1.7ms
4 [9269] [CTIHK] 061238169053.ctinets.com (61.238.169.53) 2.4/2.9/2.7ms
5 [9269] [CTIHK] 061238225149.ctinets.com (61.238.225.149) 2.4/2.5/2.4ms
6 [9269] [CTIHK] 061244232217.static.ctinets.com (61.244.232.217) 2.6/2.7/2.7ms
7 [9269] [CTIHK] 061244232237.static.ctinets.com (61.244.232.237) 2.7/4.3/3.4ms
8 [15169] [GOOGLE] 72.14.196.149 5.6/4.0/4.1ms
9 [15169] [GOOGLE] 64.233.175.207 4.3/4.7/4.4ms
10 [15169] [GOOGLE] 209.85.241.56 5.2/4.2/4.2ms
11 [15169] [GOOGLE] 209.85.250.122 22.6/22.7/24.6ms
12 [15169] [GOOGLE] 209.85.250.101 24.7/25.7/25.4ms
13 [15169] [GOOGLE] 209.85.241.154 35.4/24.9/27.1ms
14 [15169] [LVLT-ORG-8-8] [target open] google-public-dns-b.google.com (8.8.4.4):53 25.7/25.7/25.8ms
我這邊trace過去都是去Google/Level3…原因是這個吧。

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