Welcome:
Login
|
Sign Up
|
About CircleID
Follow:
|
|
|
The emergence and proliferation of Internet of Things (IoT) devices on industrial, enterprise, and home networks brings with it unprecedented risk. The potential magnitude of this risk was made concrete in October 2016, when insecure Internet-connected cameras launched a distributed denial of service (DDoS) attack on Dyn, a provider of DNS service for many large online service providers (e.g., Twitter, Reddit). Although this incident caused large-scale disruption, it is noteworthy that the attack involved only a few hundred thousand endpoints... more
The first part of this series explained how Amendment 35 to the NTIA-Verisign cooperative agreement is highly offensive to the public interest. But the reasons for saving the Internet are more fundamental to Western interests than a bad deal made under highly questionable circumstances. One of the world's foremost experts on conducting censorship at scale, the Chinese Communist Party's experience with the Great Firewall... more
The internet bus continues to accelerate straight into the IPv4 address depletion wall with spirited discussions continuing on how to divvy up the remnants of the address space. Obviously all five Regional Internet Registries (RIR's) want to make sure they get their fair share from IANA but what is a fair share remains the subject of interpretation. In the mean time, scenarios of a speculative land rush and auctions of ever smaller address blocks abound with unattractive consequences such as an explosion of the size of the routing table and a stunted growth of the global internet economy... In the meantime, the airline industry completed a rather significant migration of their own... more
A report "Securing Cyberspace for the 44th Presidency" has just been released. While I don't agree with everything it says (and in fact I strongly disagree with some parts of it), I regard it as required reading for anyone interested in cybersecurity and public policy. The analysis of the threat environment is, in my opinion, superb; I don't think I've seen it explicated better. Briefly, the US is facing threats at all levels, from individual cybercriminals to actions perpetrated by nation-states. The report pulls no punches... more
Unlike consultant-led penetration testing, periodic or continual vulnerability scanning programs have to operate harmoniously with a corporation's perimeter defenses. Firewalls, intrusion prevention systems, web proxies, dynamic malware analysis systems, and even content delivery networks, are deployed to protect against the continuous probes and exploit attempts of remote adversaries -- yet they need to ignore (or at least not escalate) similar probes and tests being launched by the managed security service providers an organization has employed to identify and alert upon any new vulnerabilities within the infrastructure or applications that are to be protected. more
OARC held its fall meeting in Belgrade on October 22 and 23. Here are my impressions of some of the presentations from that meeting... UI, UX, and the Registry/Registrar Landscape - One of the major reforms introduced by ICANN in the world of DNS name management was the separation of registry and registrar functions. The intent was to introduce competition into the landscape by allowing multiple registries to enter names into a common registry. more
Last month, the Obama administration sponsored one of the first high-level government workshops on IPv6. At the meeting, the administration's Chief Information Officer, Vivek Kundra, announced a remarkable 2012 deadline for federal agencies to support IPv6. So with a high-level US government mandate and a recent spade of vendor and carrier IPv6 announcements (e.g. VeriSign, Hurricane Electric), is the 15 year old IPv6 migration effort finally gaining momentum? more
I recently read an interesting post on LinkedIn Engineering's blog entitled "TCP over IP Anycast -- Pipe dream or Reality?" The authors describe a project to optimize the performance of www.linkedin.com. The web site is served from multiple web server instances located in LinkedIn's POPs all over the world. Previously LinkedIn used DNS geomapping exclusively to route its users to the best web server instance, but the post describes how they tried using BGP routing instead. more
Communications will be one of the most critical areas during the London Olympic Games. The industry is working to establish shared access networks -- would it not be nice if they did this everywhere, all the time? They are also working very closely with British Olympic Association, London Transport, the broadcasters and content providers. Mobile coverage will be the biggest shared infrastructure in the world. more
This post follows an earlier post about DNS amplification attacks being observed around the world. DNS Amplification Attacks are occurring regularly and even though they aren't generating headlines targets have to deal with floods of traffic and ISP infrastructure is needlessly stressed -- load balancers fail, network links get saturated, and servers get overloaded. And far more intense attacks can be launched at any time. more
I recall from some years back, when we were debating in Australia some national Internet censorship proposal de jour, that if the Internet represented a new Global Village then Australia was trying very hard to position itself as the Global Village Idiot. And the current situation with Australia's new Data Retention laws may well support a case for reviving that sentiment. more
Not so long ago, the notion of introducing laws and other regulatory responses to address cyber security issues was regarded with significant hesitation by governments and policy makers. To some extent, this hesitation may well have stemmed from a general perception by those who do not work directly in the field that the world of cyber security is somewhat of a 'dark art'. More recently, however, there has been a substantial shift in this attitude, with proposals to regulate a range of cyber security related matters becoming increasingly numerous. more
The Internet was not originally designed as a single network that serviced much of the world's digital communications requirements. Its design was sufficiently flexible that it could be used in many contexts, including that of small network domains that were not connected to any other domain, through to large diverse systems with many tens of thousands of individual network elements. If that is indeed the case, then why is it that when networks wish to isolate themselves from the Internet, or when a natural calamity effectively isolates a network, the result is that the isolated network is often non-functional. more
In our last post on CircleID we showed encouraging growth in the number of IPv6-enabled networks. But announcing an IPv6 prefix is only one of the first steps a network operator should take when deploying IPv6. For a full IPv6 deployment, IPv6 needs to be enabled on network infrastructure and made available to end users. One key piece of infrastructure for which we can measure IPv6 capabilities are DNS resolvers. more
Telco front-man Scott Cleland, in a recent blog post, thumbs his nose at the Four Internet Freedoms and says that the FCC should too. Under current leadership, it probably will. Referring to the recent submissions to the FCC by Free Press and Public Knowledge and Vuze complaining about Comcast's use of reset packets to block applications that compete with Comcast's own proprietary video entertainment offering, Cleland says "Network management trumps net neutrality." There are lots of reasons for, ahem, managing. Cleland neglects to observe that controlling congestion the way Comcast does it is like scattering nails in the road for traffic control. more
A World-Renowned Source for Internet Developments. Serving Since 2002.