this post was submitted on 24 May 2026
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How to tell if my network's faulty? (programming.dev)
submitted 3 days ago* (last edited 3 days ago) by staircase@programming.dev to c/linux@programming.dev
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I have a number of hints that my internet connection doesn't work right. I see things like can't connect to addresses from docker, pages will be slow in my browser. Before I used ethernet to my router, I would sometimes disconnect from the internet. Aside from disconnecting, none of it was a clear sign something is unusually broken. Is there some linux (Ubuntu) tool I can use to assess the long-term health of my connection?

A nice to have: the tool would tell me whether a fault is in my drivers, settings, adapter, router, connection to the house, or my provider.

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[–] redlemace@lemmy.world 4 points 3 days ago (1 children)

Basically this. You could start easy and basic with gatus. Monitor at least your gateway, the isp gateway and dns resolving.

[–] staircase@programming.dev 1 points 3 days ago (1 children)

do you know if there's a free version of gatus? I could only see a 7 day trial

[–] redlemace@lemmy.world 1 points 3 days ago* (last edited 3 days ago)

Tried it a few months ago, self hosted was free https://github.com/TwiN/gatus

(Otherwise uptimekuma or something, there are plenty of tools out there. If you wanna do it right 1st time for free : checkmk and or librenms, but it might be overkill for you just yet)