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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 in Iran - Wikipedia

    en.wikipedia.org/wiki/Internet_censorship_in_Iran

    The government's censorship techniques has led to internet in Iran being among the worst worldwide, according to a report by the Tehran Electronic Commerce Association (TECA). The report noted the effect of new filtering equipment within the domestic network, which causes functional disruptions and processor saturation.

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large. [24] 451 Unavailable For Legal Reasons (RFC 7725) A server operator has received a legal demand to deny access to a resource or to a set of resources that includes the requested resource. [25]

  5. Tor (network) - Wikipedia

    en.wikipedia.org/wiki/Tor_(network)

    This is an accepted version of this page This is the latest accepted revision, reviewed on 30 September 2024. Free and open-source anonymity network based on onion routing This article is about the software and anonymity network. For the software's organization, see The Tor Project. For the magazine, see Tor.com. Tor The Tor Project logo Developer(s) The Tor Project Initial release September ...

  6. Stuxnet - Wikipedia

    en.wikipedia.org/wiki/Stuxnet

    Stuxnet is a malicious computer worm first uncovered in 2010 and thought to have been in development since at least 2005. Stuxnet targets supervisory control and data acquisition (SCADA) systems and is believed to be responsible for causing substantial damage to the nuclear program of Iran. [ 2 ]

  7. Censorship of YouTube - Wikipedia

    en.wikipedia.org/wiki/Censorship_of_YouTube

    The block was later lifted and then reinstated after Iran's 2009 presidential election. [15] In 2012, Iran reblocked access, along with access to Google, after the controversial film Innocence of Muslims trailer was released on YouTube. [16] Some startups, television shows, celebrities, and reformist politicians such as Khatami use this website.

  8. HTTP 404 - Wikipedia

    en.wikipedia.org/wiki/HTTP_404

    If the proxy server is unable to satisfy a request for a page because of a problem with the remote host (such as hostname resolution failures or refused TCP connections), this should be described as a 5xx Internal Server Error, but might deliver a 404 instead.

  9. About error message 'We can't sign you in right now. Please ...

    help.aol.com/articles/error-message-we-cant-sign...

    Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more.