AsiaBSDCon 2019 Keynote.
OpenSSH 8.0 release notes.
a free tool for creating Zen Geometry
Millions of users, cool brands and charismatic bosses are not enough
The challenges to humanity posed by the digital future, the first detailed examination of the unprecedented form of power called "surveillance capitalism," and the quest by powerful corporations to predict and control our behavior.
As adoption of Internet of Things devices increases, so does the number of insecure IoT devices on the network. These devices represent an ever-increasing pool of computing and communications capacity open to misuse.
MCAS relied on only one of two sensors that measured the plane’s angle of attack.
50 years ago today, on 7 April 1969, the very first “Request for Comments” (RFC) document was published. Titled simply “Host Software”, RFC 1 was written by Steve Crocker to document how packets would be sent from computer to computer in what was then the very early ARPANET.
Today, Unix and its derivatives make up the majority of operating systems currently in use and its popularity continues to spread as the popularity of open-source software grows. All thanks to Kenneth Thompson, Dennis Ritchie, and their fellow rebellious Bell Labs colleagues, who—by refusing to watch their beloved Multics die—ensured that their Unix operating system would go on to run the world.
Today’s software systems are arguably robust at logging and recovering from fail-stop hardware – there is a clear,binary signal that is fairly easy to recognize a and interpret. We believe fail-slow hardware is a fundamentally harder problem to solve. It is very hard to distinguish such cases from ones that are caused by software performance issues. It is also evident that many modern,advanced deployed systems do not anticipate this failure mode. We hope that our study can influence vendors, operators, and systems designers to treat fail-slow hardware as a separate class of failures and start addressing them more robustly in future systems.
Well-structured introduction to Systems thinking.
This post explains Transparent Hugepages (THP) in a nutshell, describes techniques that can be used to measure the performance impact, shows the effect on a real-world application.
First, Understand the Problem.
The growth of global Internet traffic has driven a drastic expansion of the submarine cable network, both in terms of the sheer number of links and its total capacity. Today, a complex mesh of hundreds of cables, stretching over one million kilometres, connects nearly every corner of the earth and is instrumental in closing the remaining connectivity gaps. Despite the scale and critical role of the submarine network for both business and society at large, our community has mostly ignored it, treating it as a black box in most Internet studies, from connectivity to inter-domain traffic and reliability.
HTTPSWatch tracks the HTTPS support of prominent websites.
Yevgeniy Brikman shares key lessons from the “Infrastructure Cookbook” they developed at Gruntwork while creating and maintaining a library of over 300,000 lines of infrastructure code used in production by hundreds of companies. Topics include how to design infrastructure APIs, automated tests for infrastructure code, patterns for reuse and composition, refactoring, namespacing, and more.
New attack vector opens backdoor inside enterprise disk storage arrays and people's NAS devices.
Key events H2 2018:
- APT attack by the Leafminer group
- New GreyEnergy malware
- The Sharpshooter campaign
- MuddyWater
- Cloud Hopper
- Shamoon v.3
- Ransomware and Phishing attacks
Simple, reliable messaging. It takes a lot to support this statement. For 10 years WhatsApp demonstrated unprecedented reliability and availability, serving over 1.5B users. There is absolutely no way to reproduce interactions between all of them, within the cluster spanning over 10,000 nodes and multiple data centers. Investigations must be done on a live system without disturbing connected users. If there are repairs needed, it has to be done on the fly.
Try to avoid “technological aging”. Unlike biological aging, it is reversible.