learning and teaching (37)

https://wodewangzhishime.blogspot.com/2022/01/one-day-leopold-holding-bottle-of.html

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Ref:https://wodewangzhishime.blogspot.com/2022/06/httpswodewangzhishime.html

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1) Jian@police_hk.org (server_ip, 133.133.133) <--- server_ip 133.133.133 belong to the government of

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2) Jian@police_hk.org (server_ip, 235.235.235) <---- Mr. Gao hack the dominan name server and then temporarily bind jian@police_hk.org to 235.235.235 which belong to Mr. Gao.

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John: server_ip 133.133.133 belong to the police force of Hong Kong. However, server_ip 235.235.235 belong to Mr. Gao.

Me: Ok.

John: One day of 2015, I went to the police station. I said I'm being "surveillanced". Mr. Jian is the police who saw me. Guess what happen ?

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Mr. Gao (a Kelvin's deputy in China) : Yesterday, John came to the police station. He said, he is being surveillanced. You're better tell John, "I'm not interested in your case".

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Mr. Jian (a police): How do I tell him, "I'm not interested in your case."?

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Mr. Gao (a Kelvin's deputy in China)  : You send him an email.

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Mr. Jian: Jian@police_hk.org belong to police force of Hong Kong. So,. Every email must leave a record in the server of the government.

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Mr. Gao (a Kelvin's deputy in China) : You are childish. I hack the server of domain name and I rebind Jian@police_hk.org to my server. No record of email is left in the server of the government.

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Mr. Jian: You are genius.

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