I was thinking of doing this to my CentOs system a while ago, before doing
it I read the install script. I saw that it was going to make changes to
DNS, so i decided not to install it. You could read the script to see what
changes it did and try undoing them.
On Mon, Sep 14, 2020, 6:01 AM Aaron Jones via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:
> You can severely break your computer doing this. You might need to
> reinstall your OS. Seriously. I’m warning you. Have back ups. Make sure you
> are wired to the internet. Have back ups and be ready for that OS to be
> replaced. Don’t do it on WiFi.
>
> sudo apt-get remove --purge network-manager
> sudo dhclient eth0
> sudo apt-get install network-manager
>
> That might work. It might not. It might make your system completely not
> functional and unable to reach the internet.
>
> You can also read and then possibly try this
>
> https://askubuntu.com/a/728388
>
> Good luck.
>
> On Sep 13, 2020, at 11:49 PM, Jim via PLUG-discuss <
> plug-discuss@lists.phxlinux.org> wrote:
>
> I made the mistake of installing pihole on this machine which is running
> kubuntu 20.04. When it finished, DNS didn't work anymore. I uninstalled
> piehole. Somehow I messed up network manager. It doesn't show that I have
> a network connection. I could ping IP addresses such as 8.8.8.8 but DNS
> still didn't work. I edited /etc/systemd/resolved.conf where I added
> DNS=8.8.8.8 and FallbackDNS=8.8.4.4. I rebooted and DNS is working again.
> Still, Network Manager is messed up. I click on it and it doesn't show any
> available networks. I can right click on the network manager icon, then
> click Configure network connections, and the ethernet connection is there.
> The option in Network manager to stop or start the network isn't there.
>
> Please somebody tell me how to fix this.
>
> Thanks.
>
>
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