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profquailon CISA, NSA, FBI Release Advisory Warning of BlackTech, PRC-Linked Cyber Activity

Another option is to build your own. You could buy a small ARM board like a NanoPi R6S (<$100) with 2.5GbE ports and run pfSense on it.

profquailon Simple PowerShell things allowing you to dig a bit deeper than usual

Are you using Windows’ built-in Powershell? If so, are you allowed to install the newer Powershell Core (based on .NET Core)? The latter has a lot of fixes and improvements compared to the built-in Powershell.

profquailon Mountpoint – file client for S3 written in Rust, from AWS

WinFsp (FUSE for Windows) has an NFS driver: https://github.com/winfsp/nfs-win

profquailon Computing Adler32 Checksums at 41 GB/s

zlib-ng also has adler32 implementations optimized for various architectures: https://github.com/zlib-ng/zlib-ng

Might be interesting to benchmark their implementation too to see how it compares.

profquailon Concise Encoding: A secure data format for a modern world

The complicated number encoding scheme you mentioned is a hexfloat: C has them too.

Hexfloat can be really useful when you need precise/exact floating-point constants for numerical methods. Without them, you end up having to do more-complicated hacks to preserve exact constant values when code gets compiled, or you have to live with compilers (sometimes) subtly altering constants.

I wish more languages supported hexfloats.

profquailon Open DNS resolvers, from bad to worse

Your idea for the secret to prevent spoofing is interesting and reminiscent of the verification secret in the SCTP packet header: https://en.m.wikipedia.org/wiki/SCTP_packet_structure

profquailon Vectorization in OLAP Databases

I think it’s more like Gandiva or DataFusion (both from the Apache Arrow project).

profquailon Ask HN: What's the most stable form of digital storage?

M-DISC: https://en.m.wikipedia.org/wiki/M-DISC

They’re special DVD and Blu-ray discs designed for long-term storage. DVD and Blu-ray are so widely used, it seems likely you’d be able to find some equipment in 30 years that could still read them.

profquailon DIY Split Flap Display

There’s also a company here in Philadelphia that makes custom split-flap displays: https://www.oatfoundry.com/

profquailon Failing to reach DDR4 bandwidth

If you want to do set thread-core affinity in a cross-platform way, hwloc is a good approach: https://www.open-mpi.org/projects/hwloc/doc/v2.7.0/a00166.ph...

profquailon Quantum theory based on real numbers can be experimentally falsified

https://en.wikipedia.org/wiki/Fermat's_Last_Theorem

profquailon Improving GitHub Code Search

Hoogle is pretty neat — you can search by type signature and it’ll find matching APIs from hackage packages: https://hoogle.haskell.org/

Source: https://github.com/ndmitchell/hoogle

profquailon A viable solution for Python concurrency

Now could be a good time to make this change, in coordination with HPy: https://github.com/hpyproject/hpy

I agree though — it’s tempting to keep extending and stretching the language to be something it was never designed for; but at some point it’s been stretched so far it loses the properties that made it attractive to start with. I like Python, but some of the things people are using it for now, they should really consider another language instead, and write a Python wrapper on top of that if they must use it from Python.

profquailon Opal Camera

The Opal webcam ($300) looks fairly similar in specification to the new(ish) Dell UltraSharp webcam ($200): https://www.dell.com/en-us/shop/dell-ultrasharp-webcam/apd/3...

What is Opal offering over the Dell webcam for the extra $100?

profquailon C# for Systems Programming

Lisp machines had hardware/OS-based garbage collection ~40 years ago: https://en.m.wikipedia.org/wiki/Lisp_machine

profquailon Open-sourcing a more precise time appliance

This was standardized as the L1 Sync feature of IEEE1588:2019, as described here: https://blog.meinbergglobal.com/2020/09/17/whats-new-in-ieee...

profquailon Kats: One stop shop for time series analysis in Python

Kats looks like a useful library, but I’m a bit surprised to see they’re not enabling parallel execution for the numba kernels. Surely FB must have time-series data large-enough they’d see some performance benefits from parallelism in these functions?

profquailon Preparing Rustls for Wider Adoption

The original code was written in F#, then re-written later in F7 then F* (FStar).

profquailon Preparing Rustls for Wider Adoption

MiTLS is written in FStar, not F#. FStar has some tools (like Kremlin [1]) for extracting C code from the verified FStar, so in theory it wouldn’t be too hard to also extract Rust code too.

[1] https://github.com/FStarLang/kremlin

profquailon MacBook and iPad production delayed as supply crunch hits Apple

Maybe more like: next time there’s a downturn, keep the orders if they can afford to. Having the chips on hand when the market picks up again could be a great investment, since they’ll be able to produce vehicles when their competitors can’t. Or they can sell some of the chips they’re holding to their competitors (at the going market rate).

profquailon OpenSSL will release a high-severity issue fix on 25th

Sure, it’s important for a library to have C source code for portability. That doesn’t exclude implementing the code in another language (such as F*/FStar or Dafny) that has stronger out-of-the-box safety guarantees, then compiling it to portable C source code for distribution.

profquailon Phrack Magazine

The 2600 Magazine community is still alive and well:

https://www.2600.com/

profquailon Best practices for REST API design (2020)

You can also use SQL:2011 "System-Version Tables" (a.k.a. temporal databases) supported in most of the major RDBMSs now. You'd just need to keep track of a timestamp when you started querying/paginating and include it as part of the SQL query, which'll give clients a consistent view even if the database is being concurrently modified.

profquailon Dual-port 100GbE PCI-E 4.0 network cards are now under $1300

You could use something based on DPDK, like pktgen-dpdk: https://git.dpdk.org/apps/pktgen-dpdk/

profquailon C-for-Metal: High Performance SIMD Programming on Intel GPUs

oneAPI uses DPC++ (Data-Parallel C++), which is pretty much just SYCL, which itself is a C++ library on top of OpenCL.

From my understanding, the Khronos group realized OpenCL 2.x was much too complicated so vendors just weren’t implementing it, or only implementing parts of it, so they came up with OpenCL 3.0 which is slimmed-down and much more modular. It’s hard to say how much adoption it’ll get, but with Intel focused on DPC++ and oneAPI now, there will definitely be more numerical software coming out in the next few years that compiles down to and runs on OpenCL.

For example, Intel engineers are building a numpy clone on top of DPC++, so unlike regular numpy it’ll take advantage of multiple CPU cores: https://github.com/IntelPython/dpnp

profquailon API pagination design

Another approach to solving this issue is with a temporal database (standardized in SQL:2011); supporting a “valid time” in your query gives your user a consistent view of the database tables even if others are modifying it concurrently. It’s also handy if you want to keep audit records of the database (e.g. so users can see who/when/what changes were made).

https://en.wikipedia.org/wiki/SQL:2011