How does Iran implement internet censorship?

Iran employs methods like DNS blocking, SNI, IP-based blocking, and Deep Packet Inspection, often aggressively targeting VPN service providers and initiating nationwide internet shutdowns during crises.

What tools do people in Iran use to bypass internet blocks?

Tools like Lantern and Psiphon use VPN technology to mask circumvention traffic within common internet protocols, making it difficult to detect and block.

How is Lantern funded?

Lantern is funded through subscriptions from Lantern Pro users, grants from organizations like the Open Technology Fund, and donations from private philanthropists.

Home / Technology / Iran's Digital Fight: VPNs Defy Censorship

Iran's Digital Fight: VPNs Defy Censorship

21 Mar

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Summary

Iranians use VPNs like Lantern to access the internet despite censorship.
Iran employs aggressive blocking and frequent national internet shutdowns.
Lantern is a US-based nonprofit funded by users and grants.

Iran's Digital Fight: VPNs Defy Censorship

Iranians are finding ways to access the internet amidst severe censorship and widespread blackouts, highlighting the critical role of Virtual Private Networks (VPNs). Tools such as Lantern, a US-based nonprofit, employ sophisticated methods to circumvent Iran's stringent blocking techniques, which include DNS, SNI, and IP-based restrictions. Iran is noted for its aggressive approach, often cutting off international connectivity entirely during crises and limiting access to its domestic network.

Lantern and similar applications, like Psiphon, work by masking circumvention traffic within common internet protocols such as TLS. This makes it difficult for authorities to distinguish legitimate web traffic from VPN data. This ongoing digital struggle involves constant innovation from both technology providers and censors. Obtaining these tools can be challenging during shutdowns, with users relying on existing software or alternative distribution methods like satellite services.