Networks

Call for Participation - DNSSEC Workshop at ICANN 54 in Dublin, Ireland

Would you like to present an idea you have related to DNSSEC or DANE to a gathering of people within the DNSSEC community? Do you have an idea for a new tool or service? Have you recently implemented DNSSEC or DANE and want to share your story? The deadline is Monday, August 17, so please send your proposal soon! We are open to proposals on a wide range of topics... more

Cybersecurity Considerations in the Work-From-Home Era

Verisign is deeply committed to protecting our critical internet infrastructure from potential cybersecurity threats, and to keeping up to date on the changing cyber landscape. Over the years, cybercriminals have grown more sophisticated, adapting to changing business practices and diversifying their approaches in non-traditional ways. We have seen security threats continue to evolve in 2020, as many businesses have shifted to a work from home posture due to the COVID-19 pandemic. more

Iranian Protesters Urged Not to DDoS Gov Sites, Could Backfire as Country’s Networks Are Centralized

In the midst of heavy demonstrations in the street of Iran against current regime and controversial election results, online activist have began organizing online attacks against government websites. Activists are asking supporters to use tools currently being spread via Twitter, Facebook, and other social networking sites to participate in the attack. However as one blogger writes, the attack might in fact back fire in a country like Iran where network infrastructure is relatively centralized... more

Big Internet Outages - There Is No Such Thing as a Routine Software Upgrade

Last year I wrote about big disruptive outages on the T-Mobile and the CenturyLink networks. Those outages demonstrate how a single circuit failure on a transport route or a single software error in a data center can spread quickly and cause big outages. I join a lot of the industry in blaming the spread of these outages on the concentration and centralization of networks where the nationwide routing of big networks is now controlled by only a handful of technicians in a few locations. In early October, we saw the granddaddy of all network outages... more

China’s QUESS and Quantum Communications

In mid-August China launched "QUESS" (Quantum Experiments at Space Scale), a new type of satellite that it hopes will be capable of "quantum communications" which is supposed to be hack-proof, through the use of "quantum entanglement". This allows the operator to ensure that no one else is listening to your communications by reliably distributing keys that are then used for encryption in order to be absolutely sure that there is no one in the middle intercepting that information. more

The Evolution of 5G

Technology always evolves, and I've been reading about where scientists envision the evolution of 5G. The first generation of 5G, which will be rolled out over the next 3-5 years, is mostly aimed at increasing the throughput of cellular networks. According to Cisco, North American cellular data volumes are growing at a torrid 36% per year, and even faster than that in some urban markets where the volumes of data are doubling every two years. The main goal of the first-generation 5G is to increase network capacity to handle that growth. more

Global Spam Levels Drop Following Certain Events

If you haven't noticed lately, spam levels around the world have started dropping especially in October after a couple of events occurred. The first is a Russian crackdown on alleged spam king Igor Gusev, thought to be involved in the operations of SpamIt.com. SpamIt mysteriously shut down in late September, perhaps because Gusev caught wind of law enforcement starting to take notice of him. more

Enabling Privacy Is Not Harmful

The argument for end-to-end encryption is apparently heating up with the work moving forward on TLSv1.3 currently in progress in the IETF. The naysayers, however, are also out in force, arguing that end-to-end encryption is a net negative... The idea of end-to-end encryption is recast as a form of extremism, a radical idea that should not be supported by the network engineering community. Is end-to-end encryption really extremist? Is it really a threat to the social order? more

How Do We Get More Network Operator Feedback Into IETF Standards? Please Take This Survey

How do we get more feedback from the operators of networks back into the standards process of the Internet Engineering Task Force (IETF)? How do we help know whether the open standards being developed within the IETF reflect the operational realities of the networks into which those standards will be deployed? If we could get more network operators participating in the IETF standards process, would that result in better standards that are deployed faster? more

Internet Root Servers Hit with Unusual DNS Amplification Attack

On Nov. 30 and Dec. 1, several of the Internet Domain Name System's root name servers received high rate of suspicious queries, reaching as high as 5 million queries per second, according to a report released by the Root Server System Advisory Council. The incident has been categorized as a unique type of DNS amplification attack. more

U.S. Outgunned in Hacker War

The Wall Street Journal has an interview with the outgoing head of the FBI's cyber crime investigation Shawn Henry. In it, he has a blunt assessment of the US's capabilities when it comes to combatting online crime, especially data theft and hacking... The more I read around the Internet, the more clear it's becoming at how cyber security is becoming a central focus. This has pretty big implications for the cloud. more

The Big Bad Internet

I often think there are only two types of stories about the Internet. One is a continuing story of prodigious technology that continues to shrink in physical size and at the same time continue to dazzle and amaze us... The other is a darker evolving story of the associated vulnerabilities of this technology where we've seen "hacking" turn into organised crime and from there into a scale of sophistication that is sometimes termed "cyber warfare". And in this same darker theme one could add the current set of stories about various forms of state sponsored surveillance and espionage on the net. more

Getting on with Digital Transformation: Three Steps to Making Strategic Technology Choices

In a recently published Uptime Institute Survey, Uptime Institute found that organizations operating data centers are finding it increasingly difficult to recruit professionals skilled in security, networking, and hybrid technologies. This realization comes at an interesting time, as the monolithic business infrastructure built over the last two decades is now entering a period of transformation. more

IPv6 Security Considerations

When rolling out a new protocol such as IPv6, it is useful to consider the changes to security posture, particularly the network's attack surface. While protocol security discussions are widely available, there is often not "one place" where you can go to get information about potential attacks, references to research about those attacks, potential counters, and operational challenges. more

Cisco: Africa in 2017 to Have More Internet Users Than U.S.

Carlos Slim of Telmex tells me the world is about to change. "Two billion more people will connect to the Internet when smartphones cost $50. The phone makers are promising me a $50 phone in 2014." If Spreadtrum and Firefox deliver a $25 smartphone, as promised, that could accelerate takeover. ~310,000,000 Africans will be connected to the Internet in 2017, Arielle Sumits of Cisco predicts... It's inevitable that the U.S. will be dwarfed by the rest of the world. more