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Programming Leftovers

Submitted by Roy Schestowitz on Monday 11th of January 2021 08:30:28 AM Filed under
Development
  • But it works on my machine

    Nevertheless, I regularly notice that developers misunderstand and underestimate the responsibility they carry. Some think that having a code work on their machine is enough to consider a job to be done. That fixing and preventing issues in production is none of their business. Or that error handling, monitoring, and graceful degradation are some magical, extra efforts that only special “devops” people do. The others are simply unaware of the complexities of real world and of the differences between a production environment and their local setup.

    This post is mostly for and about the latter. From the viewpoint of a web/backend developer, we’ll review a few common things that can go wrong in production, which usually are overlooked in a local environment. The discussion will be broad and somewhat shallow, but there are references to a more in-depth content in each section. In no way this post is exhaustive, but still I would have been glad to get my hands on these notes at the beginning of my career.

  • The Platform Is The Enemy

    Popular platforms aren't just a danger economically because they control commerce. They're not just a danger politically because they selectively control and amplify political discourse. They're an extinction-level, existential danger to humans because they prevent people from seriously considering what kinds of categories are important in each of their lives. They resist their own analysis and over time make people dumber. Right now we're skating through the danger because we're harvesting people from less-advanced countries to do our hard-thinking for us. That window is quickly drawing to a close.

  • POWER10 Adds New Instructions For Helping Fend Off ROP Exploits - Phoronix

    The POWER10 architecture is adding several new instructions to help prevent return-oriented programming exploits.

    Hitting the GNU Assembler code this past week was support for new return-oriented programming instructions with POWER10. There are several new POWER instructions intended to help safeguard against this common security exploit means. It's also the first time we've seen these new instructions mentioned.

    As it's just the assembler bits being added, it doesn't provide much context to these new ROP instructions but they include: HASHSTP, HASHCHKP, HASHST, and HASHCHK. Presumably based on the instruction names, a means of hashing the stack pointer and hashing/checking the call stack.

  • RcppArmadillo 0.10.1.2.2: Minor update

    Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed and ease of use with a syntax deliberately close to a Matlab. RcppArmadillo integrates this library with the R environment and language–and is widely used by (currently) 802 other packages on CRAN.

    This release was needed because we use the Matrix package for some (optional) tests related to sparse matrices, and a small and subtle change and refinement in the recent 1.3.0 release of Matrix required us to make an update for the testing. Nothing has changed in how we set up, or operate on, sparse matrices. My thanks to Binxiang and Martin Maechler for feedback and suggestion on the initial fix both Binxiang and I set up independently. At the same time we upgrade some package internals related to continuous integration (for that, also see my blog post and video from earlier this week). Lastly Conrad sent in a one-line upstream fix for dealing with NaN in sign().

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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  • How To Install MongoDB on AlmaLinux 9 - idroot

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