Geo-block là gì

Disclosure statement

Karl Schaffarczyk does not work for, consult, own shares in or receive sầu funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

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University of Canberra provides funding as a thành viên of The Conversation AU.

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So you sit down in front of your computer to lớn catch the latest episode of Doctor Who directly from BBC’s iPlayer, và you are greeted by an error message informing you that the program will play only in the UK.

So why are you blocked? How does the BBC website know you are not in the UK?

Geoblocking is the system used to limit your access to the internet, based on your geographic location.

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Geoblocks are used lớn limit or change content depending on the end-user’s geographic location. BBC

How does it work?

Each computer on the mạng internet has a unique numerical identifier (e.g. 172.30.0.254), known as an IPhường (internet protocol) address. Each time your computer makes a request lớn a server for content, its IPhường. address is sent with that request, so the hệ thống knows where lớn sover the requested nội dung.


IP addresses are allocated in blocks khổng lồ mạng internet service providers (ISPs) who in turn allocate them lớn customers. Typically the IP address of your computer has no special significance. But an IPhường address can be used khổng lồ determine a computer’s geographical location with reasonable accuracy.

Many databases exist that maps IP addresses to lớn countries. These databases then khung the basis of block-lists, more commonly known as “geoblocks”.

How is it used?

Most people are familiar with technological protection measures (TPM) in the size of region coding on DVDs. Those particular TPMs try to prevent the disc being copied và try to lớn prevent playbaông xã in a place other than the market in which the disc was sold.

Region coding allows Hollywood khổng lồ segment global markets, releasing movies to lớn one market at a time, maximising the effect of promotional campaigns.

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…storrao…

Geoblocks are the extension of this concept online - website administrators, such as those who manage video-streaming sites such as BBC’s iPlayer, Netflix & ABC iView use geoblocks to limit their audiences to the UK, USA, and Australia respectively. These providers all cite rights licensing limitations as the reason for which they are geoblocking.

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Online businesses such as gambling services may use these geoblocks to lớn deny availability of their site lớn countries in which they cannot legally operate.

Controversially, many online retailers use geoblocks to lớn charge people in one country one price, and people in another country a higher price. This has been the subject of Parliament’s inquiry inlớn IT Pricing in nước Australia, although the practice is not limited only lớn IT-based goods.

How to lớn get around geoblocks

Due lớn the legal grey area occupied by those who bypass geoblocks, consumer advocate Choice is campaigning for greater legal clarity on behalf of Australian internet users who bypass geoblocking.

Because most geoblocking is based on the IPhường address of your computer, it can be defeated by any method that alters or hides your IP address in favour for an IP address recorded as belonging to another country.

The most comtháng way to lớn vì chưng this is to use a Virtual Private Network (VPN). Using a VPN will in most cases route all of your mạng internet traffic via a remote location, & the technology is proven, secure & reliable.

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Oliver Hine

Proxy servers are also useful to lớn get around geoblocking. Rather than change the IP address of your computer, they act as an intermediary and obtain content on your behalf, và then pass it to lớn you. The site providing the nội dung only sees the requests originating from the proxy VPS, and they don’t see you.

The Onion Router project (TOR) is a high-security encrypted VPN solution. Originally developed by the US Naval Research Laboratory, it is designed for use in situations where personal freedoms might be threatened by surveillance. If you are located in a liberal western democracy, TOR is probably overkill for accessing geoblocked movies.

Novel methods of bypassing geoblocks are now emerging. Canadian business unblock-us.com uses a carefully configured array of proxy servers which are accessed through alternative sầu DNS configurations. This arrangement simplifies configuration of proxy servers for the trang chính user, và allows most traffic lớn flow directly to lớn và from the internet without using the proxy.

Other apps and services such as the browser plug-in Hola! have also arrived. Available for không lấy phí, Hola! is deliciously simple khổng lồ install, configure và use. It utilises a more robust peer-to-peer network khổng lồ allow the end user access to lớn the Đài truyền hình BBC and other websites.

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As mentioned already, bypassing geoblocks from Australia is a grey area legally. But technological advances have sầu made it easy khổng lồ smash through old location-based business models & access all that the world has to lớn offer.