Re: 11.2 sometimes wrong /etc/resolv.conf
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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, March 10, 2022 9:22 AM, Christian Groessler <chris@groessler.org> wrote:
> Hi,
>
> when I boot my laptop with Debian 11.2 and LAN cable connected, I'm
> sometimes getting a wrong /etc/resolv.conf.
>
> The resolv.conf is not in fact wrong, but it's the one from the Wifi
> network. But when booting with network cable connected I want to have
> the resolv.conf of the cabled network.
>
> Can I somehow force this? That the "cabled-network-nameserver" is used
> when the cable is connected?
How about:
Create a resolv.com file with the cable network info (with a different name; I use /etc/resolv.com.qw).
Create a shell script that gets the current IP (hostname -I), checks for the desired nameserver IP, and copies your resolv.com.qw to /etc/resolv.com if necessary. Or maybe always copy the file (one-liner in .bashrc) if you always want the same nameserver and want to save a couple ms.
Put the script at the bottom of the .bashrc (or equiv) in everybody's login dir.
The script will run when anybody logs in -- long after the network has been configured.
--
Glenn English
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