Score:-1

Can only ping external IPs

bt flag

I have a headless computer running Ubuntu 18.04. It has until recently been happily operating as a Pi-hole on my wifi (Nest Mesh).

After attempting to install some new bits and bobs on it (Home Assistant, etc.), I found out it does not have internet access. Strangely enough, I can ping my own router, but I cannot ping anything else on the network.

After a bit more fiddling around, I've removed Pi-hole and reverted as much of everything as I could to default. I can now ping 8.8.8.8, but cannot ping internal, and seem to struggle with some other sites.

see here

Pilot6 avatar
cn flag
There is no information at all. You installed something, then removed something and it looks like DNS doesn't work. We can't guess what is wrong.
DorkyP avatar
bt flag
I'm sorry, I'm not too sure how better to explain it. Things are crook, I guess! I can ping some things, and not other things, and I can install new packages, but can't connect to ubuntu.com, it's all a bit whacky, and I'm not too sure where to start.
DorkyP avatar
bt flag
Obvs, I've been duckduckgo'ing this issue, but I haven't found anything too useful, so super keen to hear if anyone has ideas.
Pilot6 avatar
cn flag
You need to look into your network settings.
uz flag
Jos
Before you removed Pi-hole, the system used that to resolve names. Now that you have removed Pi-hole, you need to tell the system to look at another name server, very probably your router. You probably have NetworkManager on your system: please restart that: `sudo systemctl restart NetworkManager`.
not2savvy avatar
vn flag
It's either the bits and bobs or the fiddling or something else. (SCNR)
Score:0
bt flag

For anyone that stumbles upon this in the future, the answer was simple: Pi-hole does not support Ubuntu 18.04 LTS, so when I finally established some internet access and attempted to update Pi-hole, it updated FTL, which broke a lot of configs. So, updating to 22.04 LTS and reinstalling Pi-hole has fixed everything. Just need to change some power settings to stop the nuc from going to sleep constantly.

I sit in a Tesla and translated this thread with Ai:

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