this post was submitted on 23 Oct 2025
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A single DNS race condition brought AWS to its knees (go.theregister.com)
submitted 7 months ago by mhzawadi@lemmy.horwood.cloud to c/selfhosted@lemmy.world
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[–] ubergeek@lemmy.today 27 points 7 months ago (2 children)

A huge problem are developers who lack a fundamental understanding of how the internet even works. I've had to explain how short, unqualified names resolve vs how fqdns resolve. Or why even you may not be able to reach another node in your proverbial cluster, because they are on different subnets. Or, why using GUIDs as hostnames is a generally bad idea, and will cause things to fail in unpredictable ways, especially with deeply nested subdomains.

[–] GreenKnight23@lemmy.world 13 points 7 months ago (1 children)

I have worked with too many devs that didn't even know what the 7 layers/OSI are or why they exist.

they didn't know what a network port was used for and why it's important to not expose 3306 to the internet.

they couldn't understand that fragmentation of a message bus occurs when you don't dedupe the contents.

you know, morons.

[–] metaStatic@kbin.earth 14 points 7 months ago

Ah, the common clay of the new Web

[–] Appoxo@lemmy.dbzer0.com 5 points 7 months ago (1 children)

GUIDs?
Could you expand on that topic? :)

[–] ubergeek@lemmy.today 2 points 7 months ago (2 children)

guids like these: https://guidgenerator.com/

[–] aesthelete@lemmy.world 3 points 7 months ago* (last edited 7 months ago) (1 children)

Why the fuck would anyone use a guid as a hostname?

My favorite I've seen in the category was when they had hostnames that were basically the IP address decorated with some bullshit. Like yeeeeeeeeah, that totally makes fucking sense. 😆

[–] Appoxo@lemmy.dbzer0.com 2 points 7 months ago* (last edited 7 months ago)

I've seen those with public routing servers.
Example: IP-127.0.0.1.dtag.de

Makes sense there or for webservers.
But anywhere else? Lol not really

[–] Appoxo@lemmy.dbzer0.com 2 points 7 months ago

Why would someone want that as their hostname???
I'd understand mountpoint but that?