Meltdown/PTI Mitigation Impact On BSDs vs. Linux
Besides the fresh BSD/Linux disk performance tests, some other tests I ran on various BSDs and Linux distributions this week was looking at the performance impact of Intel Meltdown CPU vulnerability mitigation on each of them, namely the performance impact of using kernel page-table isolation.
On DragonFlyBSD 5.2, TrueOS 18.03, Ubuntu 16.04, Ubuntu 18.04, and Clear Linux I ran tests when the mitigation was enabled and then again when it was off for seeing the performance impact.
| Red Hat and Fedora Leftovers
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The next online DevNation Live Tech Talk is Thursday, April 19th at 12pm EDT. The topic is “Enterprise Node.js on Red Hat OpenShift” presented by Lance Ball, and hosted by Burr Sutter. The popularity of JavaScript on the front end and the JSON format for data has led to a “JavaScript Everywhere” movement with Node.js at the center. Node.js offers developers an event-driven, non-blocking I/O model that is perfect for high concurrency, low-latency applications that run across distributed devices. Its reactive architecture makes it an ideal technology for containerized microservices architectures you’ve been hearing so much about.
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ITWC President Fawn Annan gets to the point with Red Hat’s general manager for Canada. Villeneuve speaks about building the open source technology firm in the country, the unique differences when dealing with the Quebec market, and how he fosters a positive culture in the workplace. Plus, he dishes on how his experience in journey hockey taught him how to build a successful sales team.
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Open source software has long been seen as a movement towards collaborative development. In a conversation with BusinessLine, Chris Wright, Vice-President & CTO at RedHat, talks about some of the challenges the open source community is facing and why it is important to set expectations right when it comes to promoting open source software. Edited excerpts:
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Long time we did not had any meetup at Pune, Maharashtra, India, so we decided to get started again. Details about this meetup are available at Fedora Wiki page.
Planning for meetup started 1 month before. Initially Ompragash proposed to have meetup.com account for Fedora Pune to get more awareness. Later dropped this plan, since this is not only Fedora Pune level topic but applicable for all Fedora events.
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Used DNF to remove duplicate rpms, reinstalled the new kernel and libwbclient, and corrected GNOME’s right-click behaviour, and all is well.
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Security Leftovers
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Despite 22 recommendation created by the Department of Health and Social Care, NHS England and NHS Improvement to help the NHS improve its cyber defences, the PAC noted it was "alarmed" that these measures had not yet been implemented.
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The four bipartisan legislative proposals aim to elevate the Department of Energy’s efforts on cyber response and engagement and to create new programs to address grid and pipeline security.
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A business email compromise (BEC) scam is a highly targeted attack designed to convince finance departments or C-suite executives to sign off on fraudulent invoices.
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Several manufacturers make these types keys, and they all basically work the same way. They adhere to an industry standard called Universal 2nd Factor, or U2F. The standard weds hardware-based authentication with public key cryptography—a set of tools that’s extremely difficult to compromise. These U2F keys simplify the process of securely accessing online services like Google, Facebook, Dropbox, Windows, and Mac OS. They also support password managers like Lastpass, Dashlane and Keepass. U2F keys can even be used to unlock your Mac or Windows PC from the home screen.
| Devices Leftovers
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The resulting system is flexible and has the potential to integrate all household devices. This design is also capable of seamless integration into any home environment due to its open source software and modular design. However, there are still many areas of this solution that need to be evaluated, such as security, more connectivity options to made this solution more scalable, power management for the CE module, stability, and an adaptive user interface.
Updated: Oh why is Linux always so hard [Ed: Post updated to show the author himself has a preconceived misconception, should have blamed himself]-
We’ve sifted through the options to find the best Raspberry Pi kits on the market. Our top picks include something for everyone, whether you want to build a simple secondary PC or dive right into advanced maker-style projects.
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