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@clarencetw
Created July 27, 2019 15:10
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use-dig-command-to-understand-the-characteristics-of-aws-vpc-in-dns
dig +nocmd +noall +answer +ttlid a google.com
clarence@ip-10-0-0-0:~$ dig +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 60 IN A 104.31.80.250
blog.clarence.tw. 60 IN A 104.31.81.250
clarence@ip-10-0-0-0:~$ dig @8.8.8.8 +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 299 IN A 104.31.80.250
blog.clarence.tw. 299 IN A 104.31.81.250
clarence@ip-10-0-0-0:~$ dig +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 60 IN A 104.31.80.250
blog.clarence.tw. 60 IN A 104.31.81.250
clarence@ip-10-0-0-0:~$ dig +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 60 IN A 104.31.80.250
blog.clarence.tw. 60 IN A 104.31.81.250
clarence@ip-10-0-0-0:~$ dig @8.8.8.8 +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 300 IN A 104.31.80.250
blog.clarence.tw. 300 IN A 104.31.81.250
clarence@ip-10-0-0-0:~$ dig @8.8.8.8 +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 300 IN A 104.31.80.250
blog.clarence.tw. 300 IN A 104.31.81.250
clarence@ip-10-0-0-0:~$ dig @8.8.8.8 +nocmd +noall +answer +ttlid blog.clarence.tw
blog.clarence.tw. 300 IN A 104.31.80.250
blog.clarence.tw. 300 IN A 104.31.81.250
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