Analysing Censorship Circumvention with VPNs Via DNS Cache Snooping

Farnan, Oliver; Wright, Joss; Darer, Alexander

doi:10.1109/spw.2019.00046

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…In 2019, Farnan, et al, [11] have applied DNS cache snooping to determine the domains people were accessing through VPNs. They explore 3 methods of DNS cache snooping and briefly discuss their strengths and limitations.…”

Section: Literature Reviewmentioning

confidence: 99%

New Approach to Study the Possibilities of VPN Blocking in ISPs

Jouma Ali AlMohamad

2023

JNACS

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The adoption of VPNs provides steady growth in the past decade because of its increased public awareness of privacy and threads. VPN analysis and blocking are critical in network security due to the urgent need by many companies and government organizations. This helps to secure the user's privacy or Government censorship. Several VPN providers perform streaming unblocking services. VPNs are used for online protection, however, many VPNs do not guarantee privacy and may even compromise user privacy through leakage of traffic flows, data collection and sharing, and so forth. In this paper, we have discussed the mechanism of VPN providers to facilitate access to geo-restrict content, copyrights, and school and work content. We proposed MikroTik Firewall for blocking and the mechanisms to achieve the desired goals, as well as the possibilities of bypassing this ban imposed on VPN networks. A step-by-step guide was provided to block websites such as Facebook. Finally, a practical approach to VPN blocking using MikroTik helped to completely block the network. To conclude, both objectives of this project were fully achieved and the scope of the study was followed thoroughly. Finally, a practical approach to VPN blocking using MikroTik helped to completely block the network.

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Section: Literature Reviewmentioning

confidence: 99%

New Approach to Study the Possibilities of VPN Blocking in ISPs

Jouma Ali AlMohamad

2023

JNACS

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“…Only the last category is relevant to this paper, and this seems to be the topic of only a few papers. Three of these focus on the use of specific tools or apps like TOR [19], an app for changing DNS resolver [10], and on the use of DNS servers owned by VPN providers [8]. Our focus is only on circumvention that involves the use of 3rd party resolvers, not on specific tools.…”

Section: Censorship and Circumvention Detectionmentioning

confidence: 99%

A Study on the Use of 3rd Party DNS Resolvers for Malware Filtering or Censorship Circumvention

Fejrskov¹,

Vasilomanolakis²,

Pedersen³

2022

ICT Systems Security and Privacy Protection

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DNS resolvers perform the essential role of translating domain names into IP addresses. The default DNS resolver offered by an Internet Service Provider (ISP) can be undesirable for a number of reasons such as censorship, lack of malware filtering options and low service quality. In this paper, we propose a novel method for estimating the amount of DNS traffic directed at non-ISP resolvers by using DNS and NetFlow data from an ISP. This method is extended to also estimate the amount of DNS traffic towards resolvers that offer malware filtering or parental control functionality. Finally, we propose a novel method for estimating the amount of DNS traffic at non-ISP resolvers that would have been censored by ISP resolvers. The results of applying these methods on an ISP dataset shows to which extent 3rd party resolvers are chosen by users for either malware filtering or censorship circumvention purposes.

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“…China is perhaps the most widely discussed, famously constructing her 'Great Firewall of China' to advance the country's comprehensive censorship system. 52 The manner in which China was able to vanquish Google and now appears to be able to defeat even complex anonymising software for browsing the web underlines the degree of control. Recent revelations of possible connections between Huawei and the Chinese Government are seen by some as the latest in a series of efforts to control and influence this so-called 'fluid' space.…”

Section: State Sovereignty and National Boundednessmentioning

confidence: 99%

Always in control? Sovereign states in cyberspace

Mainwaring

2020

Eur. j. of int. secur.

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For well over twenty years, we have witnessed an intriguing debate about the nature of cyberspace. Used for everything from communication to commerce, it has transformed the way individuals and societies live. But how has it impacted the sovereignty of states? An initial wave of scholars argued that it had dramatically diminished centralised control by states, helped by a tidal wave of globalisation and freedom. These libertarian claims were considerable. More recently, a new wave of writing has argued that states have begun to recover control in cyberspace, focusing on either the police work of authoritarian regimes or the revelations of Edward Snowden. Both claims were wide of the mark. By contrast, this article argues that we have often misunderstood the materiality of cyberspace and its consequences for control. It not only challenges the libertarian narrative of freedom, it suggests that the anarchic imaginary of the Internet as a ‘Wild West’ was deliberately promoted by states in order to distract from the reality. The Internet, like previous forms of electronic connectivity, consists mostly of a physical infrastructure located in specific geographies and jurisdictions. Rather than circumscribing sovereignty, it has offered centralised authority new ways of conducting statecraft. Indeed, the Internet, high-speed computing, and voice recognition were all the result of security research by a single information hegemon and therefore it has always been in control.

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Analysing Censorship Circumvention with VPNs Via DNS Cache Snooping

Cited by 7 publications

References 12 publications

New Approach to Study the Possibilities of VPN Blocking in ISPs

New Approach to Study the Possibilities of VPN Blocking in ISPs

A Study on the Use of 3rd Party DNS Resolvers for Malware Filtering or Censorship Circumvention

Always in control? Sovereign states in cyberspace

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