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2. VPN blocking - Wikipedia

   en.wikipedia.org/wiki/VPN_blocking

   VPN blocking is a technique used to block the encrypted protocol tunneling communications methods used by virtual private network (VPN) systems. Often used by large organizations such as national governments or corporations, it can act as a tool for computer security or Internet censorship by preventing the use of VPNs to bypass network ...

3. Internet censorship circumvention - Wikipedia

   en.wikipedia.org/wiki/Internet_censorship...

   free: Turns a computer into a personal, encrypted proxy server capable of retrieving and displaying web pages to users of the server. CGIProxy is the engine used by many other circumvention systems. Flash proxy [46] HTTP proxy: Stanford University: free: Uses ephemeral browser-based proxy relays to connect to the Tor network. Freegate [47] HTTP ...

4. Web filtering in schools - Wikipedia

   en.wikipedia.org/wiki/Web_filtering_in_schools

   Web filtering in schools blocks students from inappropriate and distracting content across the web, while allowing sites that are selected by school administrators. [1] Rather than simply blocking off large portions of the Internet, many schools utilize customizable web filtering systems that provide them with greater control over which sites are allowed and which are blocked.

5. PeerBlock - Wikipedia

   en.wikipedia.org/wiki/PeerBlock

   PeerBlock is the Windows successor to the software PeerGuardian (which is currently maintained only for Linux). [3] It blocks incoming and outgoing connections to IP addresses that are included on blacklists (made available on the Internet), and to addresses specified by the user. [3] PeerBlock mainly uses blacklists provided by iblocklist.com. [4]

6. Virtual private network - Wikipedia

   en.wikipedia.org/wiki/Virtual_private_network

   Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).

7. Block (Internet) - Wikipedia

   en.wikipedia.org/wiki/Block_(Internet)

   A notice informing a user of their block on the English Wikipedia A Telegram user is blocked. On the Internet, a block or ban is a technical measure intended to restrict access to information or resources. Blocking and its inverse, unblocking, may be implemented by the owners of computers using software.