this post was submitted on 15 Jun 2023
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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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[–] [email protected] 2 points 1 year ago (1 children)

I am able to access the Linux shell locally or on the local area network. From within I can ping the gateway, but nothing beyond that.

Is there a tracert equivalent for Ubuntu?

I will say I get this error when trying to ping www.google.com:

ping: unknown host

[–] [email protected] 2 points 1 year ago (1 children)

The tracert equivalent that I use would be traceroute or mtr. If you can get a response from the gateway and access the server locally, it would indicate an IP routing issue as local subnet traffic is working.

Instead of pinging a domain name, what happens if you ping a public IP like Google DNS (8.8.8.8)? The error you're seeing could be related to a DNS resolution issue although that should not affect access to your server.

[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

Ill try that next time it hiccups. I was thinking I should have pinged an IP address after I was pasting the unknown host error 🙃.

In further hindsight I shouldn't have restarted the server so I could try the things during our conversation. 🙁