DNS Censorship
DNS Injection is a DNS spoofing method used by Chinese ISPs to block access to foreign websites.
While performing Internet measurements to analyze the global visibility of DNS injection from outside of China, this also led to the discovery of globally visible DNS injection from Iranian ISPs. As the measurements coincided with the election of President Hassan Rouhani, the data showed some indecisiveness about the blocking of social media in Iran.
- External link: Measurement of Globally Visible DNS Injection