The last Strategic Defence and Security Review, published three years ago, identified four main areas of threat, including the evolution of extremist terrorism, the resurgence of state-based threats, the rapid advance of technology on all fronts and the erosion of the rules-based international order.The sixth edition of the Global Strategic Trends report recognises the danger of those threats, but also sets out how they are continuing to speed up and intersect to create new and unparalleled risks.It outlines how regional powers could develop nuclear capabilities with global reach, internationally accepted rules on chemical weapons are ignored, and non-state actors could acquire sophisticated missile technology. It also describes how the interaction between climate change, demand for resources and over-population drives competition, that could lead to conflict.UK Defence has always been at the forefront of global military capabilities and has risen to meet threats ranging from global conflicts, insurgent warfare, disinformation campaigns and offensive cyber. This has ensured the UK maintains a military edge over adversaries.The MOD’s thinktank, the Development Concepts and Doctrine Centre, worked on this comprehensive report for two years. They drew on a range of analysis across academia, business, government departments and nations from across the globe. The findings support those who formulate Defence policy, strategy and capability development, and includes a range of innovations. This has been evident in the development of the MOD’s Arctic Strategy, Space Strategy and approach to future autonomous systems.The MOD’s research teams used a suite of research methods to provide insight into alternate, plausible futures, watchpoints and discontinuities. Through this analysis UK Defence has identified key areas that have the potential to profoundly change humanity over the coming years.The sixth edition of the Global Strategic Trends report can be read here. This report makes clear that we are living in a world becoming rapidly more dangerous, with intensifying challenges from state aggressors who flout the rules, terrorists who want to harm our way of life and the technological race with our adversaries. Identifying these threats means we can continue to build an Armed Forces that can stay ahead of them. The ‘Future Starts Today’ report indicates that the world has reached a critical point in the need to tackle the evolution of threats faced in the current climate.Welcoming the report, Defence Secretary Gavin Williamson said:
text / Gu Xiaobo
the afternoon of January 21st nationwide the emergence of Internet access failure, a large number of domain names including Baidu, Tencent, Sina, was hijacked, the accident lasted a few hours, became a nationwide Internet disaster.
is similar to the scale of the accident is not common, why the scope of such a wide range of reasons why can not be restored in a short time? Why the Chinese Internet easily hijacked?
after multi consultation, NetEase technology trying to use plain language to restore the event.
DNS why so fragile?
The full name of DNS
Domain Name System (domain name system), user input domain name through DNS analysis to the corresponding IP address, domain name will be the first local DNS server to resolve, if not to return analysis, the upper server until the query to the root server to query the most advanced, the local server will be the IP cache again, the user access to the domain name will return to the cached IP.
this is the root of the DNS server, referring to a total of 13 sets of the world’s root DNS server, is responsible for recording the corresponding suffix of the top-level domain name server.
in the case of DNS contamination, the domain name can be resolved to the non site corresponding to the IP, so hijacked to the 126.96.36.199.
It is understood that
DNS, the last update specification in 1987, after almost no change, that is to say, the current DNS standard is 27 years ago, although the root server is the highest level of protection, but still possible because of political differences, domain name management causes large fault, so without paralysis the end.
since read from the local DNS, why would be hijacked?
as mentioned above, when the user access to a domain name, the operator’s recursive DNS will deal with it, thereby easing the pressure on the root DNS.
recursive DNS refers to a domain name to IP address cache, and the default that this relationship will not change over a period of time, but it will have a buffer time, usually one hour, every hour will be superior to the recursive DNS DNS to request a IP, so the final effect DNS attack will spread to the recursive DNS, which affects every user.
when the user on the computer to the network connection DNS set to 188.8.131.52 (foreign DNS), visit the site will not be resolved from the recursive DNS, so you can avoid the pollution problem.
who is the culprit?
, a security industry source said, hackers want to turn off the recursive DNS server is almost impossible