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How would you resolve this issue: Your server's internet randomly becomes inaccessible until reboot. (Ubuntu 22.04, Netplan) (forum.stellarcastle.net)

submitted 3 years ago* (last edited 3 years ago) by Dax87@forum.stellarcastle.net to c/selfhosted@lemmy.world

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I've been having this issue very sporadically (sometimes a couple times a week, sometimes once a month). I'm curious as to how the more veteran folk here would try and narrow down the cause of this issue.

I can provide more info if needed!

Edit: More Info:

Using a static IP (no DHCP) through Netplan.

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[–] fuser@quex.cc 1 points 3 years ago (1 children)

if ping fails with the name but works with 8.8.8.8 then you're losing DNS. set the nameservers locally on the server if you're using a static IP.

[–] Dax87@forum.stellarcastle.net 1 points 3 years ago (1 children)

I do have nameservers (8.8.8.8 being one of them) set in my Netplan config, if that counts.

[–] fuser@quex.cc 2 points 3 years ago (1 children)

it should - I think (I am not familiar with netplan) - but from what I can tell it it's a utility that simplifies the local config tasks, when you apply it, I think it should be putting the nameservers in /etc/resolv.conf - but before you go down this rabbit hole, check whether 8.8.8.8 or 1.1.1.1 respond to a ping when pings to named servers don't - if so, it's definitely name resolution (which would be my first guess).

[–] Dax87@forum.stellarcastle.net 1 points 3 years ago

Thank you, I'll follow this advice next time it decides to cut the internet off.