Souped-up VPNs play 'cat and mouse' game with Iran censors

AFP asked Adam Fisk, head of US-based nonprofit Lantern, which offers an advanced VPN, how his technology and similar apps can get around such heavy-handed blocking. Question: How does Iran's internet blocking work? Answer: In general, censoring countries block traffic using DNS (Domain Name System, which translates between human- and machine-readable names for websites and other resources), SNI (server name identification), IP-based blocking (of specific internet addresses) and other forms of...