today's leftovers
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The OpenSSL security update story – how can you tell what needs fixing?
Fortunately, the latest update, once it came out, brought just one piece of mildly worrying news, along with three reasons to feel relieved.
Although what was originally reported as one bug turned out to be two (the second hole was found while researching the first, given that bugs of a similar type often clump together), their impact wasn’t as dramatic as first thought, because: [...]
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I finally found an use case for my Raspberry Pi Model B+
Due to the very limited performance, the use cases for a Raspberry Pi 1 are quite limited in 2022. Use cases that don’t require much computational power are often better solved by other platforms. Use cases that are actually useful to me and solve a problem I have are too much for the Pi 1. At the same time, I absolutely hate it when I have computing equipment sitting around on a shelf doing nothing. I can’t even sell this Pi, because it is not worth much any more and it has some sentimental value for me.
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Stick PC available with Gemini Lake or Jasper Lake CPUs
The MeLE PCG02 Pro is a fanless PC compatible with the Celeron J4125 or the Celeron N5105 Intel processors. The device is as big as an iPhone 14 pro, but it packs flexible peripherals such as dual ... HDMI ports, one GbE RJ45, dual UBS 3.2 ports, etc.
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Embedded platform integrates Xilinx Artix-7 FPGA and i.MX Mini processor
The MYC-JX8MMA7 CPU Module from Myirtech, is an embedded platform powered by a Xilinx XC7A25T Artix-7 FPGA and a i.MX 8M Mini quad-core processor. The company is also offering a compatible dev board which provides access to one GbE, one HDMI port and several other peripherals.
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A few of my favourite things about the OpenBSD Packet Filter tools
The OpenBSD packet filter (PF) was introduced a little more than 20 years ago as part of OpenBSD 3.0. In a series of two posts, I invite you to take a short tour of PF features and tools that I have enjoyed using.
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Comparing TCP and QUIC
There is a common view out there that the QUIC transport protocol (RFC 9000) is just another refinement to the original TCP transport protocol [1] [2]. I find it hard to agree with this sentiment, and for me QUIC represents a significant shift in the set of transport capabilities available to applications in terms of communication privacy, session control integrity and flexibility. QUIC embodies a different communications model that makes intrinsically useful to many more forms of application behaviours. Oh, yes. It’s also faster than TCP! In my opinion It’s likely that over time QUIC will replace TCP in the public Internet. So, for me QUIC is a lot more than just a few tweaks to TCP. Here we will describe both TCP and QUIC and look at the changes that QUIC has bought to the transport table.
However, we should first do a brief recap of TCP.