Internet geolocation

摘要: Internet geolocation technology aims to determine the physical (geographic) location of users and devices. It is currently proposed or in use for a wide variety purposes, including targeted marketing, restricting digital content sales authorized jurisdictions, security applications such as reducing credit card fraud. This raises questions about veracity claims accurate reliable geolocation. We provide survey technologies with an emphasis on adversarial contexts; that is, we consider how this performs against knowledgeable adversary whose goal evade do so by examining first limitations existing techniques, then, from base, determining best techniques. also two further techniques which may be even targets: (1) extraction client IP addresses using functionality introduced 1.5 Java API, (2) collection round-trip times HTTP refreshes. These illustrate seemingly straightforward technique evading relaying traffic through proxy server (or network servers) not many end-users might expect. give demonstration popular Tor anonymizing network.