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Cake day: June 16th, 2023

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  • At work there’s a lot of rituals where processes demand that people write long internal documents that no one will read, but management will at least open it up, scroll and be happy to see such long documents with credible looking diagrams, but never read them, maybe looking at a sentence or two they don’t know, but nod sagely at.

    LLM can generate such documents just fine.

    Incidentally an email went out to salespeople. It told them they didn’t need to know how to code or even have technical skills, they code just use Gemini 3 to code up whatever a client wants and then sell it to them. I can’t imagine the mind that thinks that would be a viable business strategy, even if it worked that well.


  • An LLM can generate code like an intern getting ahead of their skis. If you let it generate enough code, it will do some gnarly stuff.

    Another facet is the nature of mistakes it makes. After years of reviewing human code, I have this tendency to take some things for granted, certain sorts of things a human would just obviously get right and I tend not to think about it. AI mistakes are frequently in areas my brain has learned to gloss over and take on faith that the developer probably didn’t screw that part up.

    AI generally generates the same sorts of code that I hate to encounter when humans write, and debugging it is a slog. Lots of repeated code, not well factored. You would assume of the same exact thing is fine in many places, you’d have a common function with common behavior, but no, AI repeated itself and didn’t always get consistent behavior out of identical requirements.

    His statement is perhaps an over simplification, but I get it. Fixing code like that is sometimes more trouble than just doing it yourself from the onset.

    Now I can see the value in generating code in digestible pieces, discarding when the LLM gets oddly verbose for simple function, or when it gets it wrong, or if you can tell by looking you’d hate to debug that code. But the code generation can just be a huge mess and if you did a large project exclusively through prompting, I could see the end result being just a hopeless mess.v frankly surprised he could even declare an initial “success”, but it was probably “tutorial ware” which would be ripe fodder for the code generators.




  • Hardware raid limits your flexibility, of any part fails, you probably have to closely match the part in replacement.

    Performance wise, there’s not much to recommend them. Once upon a time the xor calculations weighed on CPU enough to matter. But cpus far outpaced storage throughput and now it’s a rounding error. They continued some performance edge by battery backed ram, but now you can have nvme as a cache. In random access, it can actually be a lability as it collapses all the drive command queues into one.

    The biggest advantage is simplifying booting from such storage, but that can be handled in other ways that I wouldn’t care about that.


  • While sas is faster, the difference is moot if you have even a modest nvme cache.

    I don’t know if it’s especially that much more reliable, especially I would take new SATA over second hand sas any day.

    The hardware raid means everything is locked together, you lose a controller, you have to find a compatible controller. Lose a disk, you have to match pretty closely the previous disk. JBOD would be my strong recommendation for home usage where you need the flexibility in event of failure.


  • The RAM that has been sold will not be viable for desktop systems, but especially with manufacturing capacity build up, you’d have memory vendors a bit more desperate to find a target market for new product. Datacenter clients will still exist but they could actually subsist on the hypothetical leftovers of a failed buildout, so consumer space may be their best bet.




  • I remember this sort of stuff a long time ago. There were wifi drivers that were either linux, but closed source, or horror of horrors having to resort to ndiswrapper…

    Of course, the Ubuntu derivatives made this easy enough by just including it, but Fedora was much more purist about open source and so wouldn’t even tell you about rpm-fusion, let alone enable proprietary drivers for basic network access.

    Now Fedora has edged a bit more practical and proactively let’s users know about how to add proprietary stuff and the wifi industry takes Linux seriously, if not for desktop use then for all the embedded use cases they would be left out of without good Linux support. Fedora is still a bit far on the ‘purist’ side still (try to play a lot of media using dnf provided software, it will tend to break), but not as hard as it used to be)


  • the TLS-ALPN-01 challenge requires a https server that implements generating a self-signed certificate on demand in response to a specific request. So we have to shut down our usual traffic forwarder and let an ACME implementation control the port for a minute or so. It’s not a long downtime, but irritatingly awkward to do and can disrupt some traffic on our site that has clients from every timezone so there’s no universal ‘3 in the morning’ time, and even then our service is used as part of other clients ‘3 in the morning’ maintenance windows… Folks can generally take a blip in the provider but don’t like that we generate a blip in those logs if they connect at just the wrong minute in a month…

    As to why not support going straight to 443, don’t know why not. I know they did TLS-ALPN-01 to keep it purely as TLS extensions to stay out of the URL space of services which had value to some that liked being able to fully handle it in TLS termination which frequently is nothing but a reverse proxy and so in principle has no business messing with payload like HTTP-01 requires. However for nginx at least this is awkward as nginx doesn’t support it.



  • Frankly, another choice virtually forced by the broader IT.

    If the broader IT either provides or brokers a service, we are not allowed to independently spend money and must go through them.

    Fine, they will broker commercial certificates, so just do that, right? Well, to renew a certificate, we have to open a ticket and attach our csr as well as a “business justification” and our dept incurs a hundred dollar internal charge for opening that ticket at all. Then they will let it sit for a day or two until one of their techs can get to it. Then we are likely to get feedback about something like their policy changing to forbid EC keys and we must do RSA instead, or vice versa because someone changed their mind. They may email an unexpected manager for confirmation in accordance to some new review process they implemented. Then, eventually, their tech manually renews it with a provider and attaches the certificate to the ticket.

    It’s pretty much a loophole that we can use let’s encrypt because they don’t charge and technically the restrictions only come in when purchasing is involved. There was a security guy raising hell that some of our sites used that “insecure” let’s encrypt and demanding standards change to explicitly ban them, but the bearaucracy to do that was insurmountable so we continue.




  • Ours is automated, but we incur downtime on the renewal because our org forbids plain http so we have to do TLS-ALPN-01. It is a short downtime. I wish let’s encrypt would just allow http challenges over https while skipping the cert validation. It’s nuts that we have to meaningfully reply over 80…

    Though I also think it’s nuts that we aren’t allowed to even send a redirect over 80…


  • So on mine, I haven’t bothered to change from the ISP provided router, which is mostly adequate for my needs, except I need to do some DNS shenigans, and so I take over DHCP to specify my DNS server which is beyond the customization provided by the ISP router.

    Frankly been thinking of an upgrade because they don’t do NAT loopback and while I currently workaround with different DNS results for local queries, it’s a bit wonky to do that and I’m starting to get WiFi 7 devices and could use an excuse to upgrade to something more in my control.