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40 lines
1.0 KiB
Bash
40 lines
1.0 KiB
Bash
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#!/usr/bin/env bash
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set -x
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# I learned that not only systemd-resolved does this, but NetworkManager as
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# well. I think it's even less likely I use this than the systemd-resolved
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# one, but anyway
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# I know there are old versions that used something else, but I don't remember
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# that name and they are ancient.
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if ! hash nmcli 2>/dev/null; then
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echo "You don't seem to have NetworkManager (or nmcli) installed." 1>&2
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exit 1
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fi
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# Require root or exit
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if [ "$(id -u)" != "0" ]; then
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echo "This script requires root." 1>&2
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exit 1
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fi
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# It's pointless to make a dead symlink as it must be running
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systemctl enable --now NetworkManager.service
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# In case I am behind the /etc/resolv.conf, it's immutable and read-only,
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# which won't allow it to be rewritten.
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chattr -V -i /etc/resolv.conf
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chmod -v +w /etc/resolv.conf
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# It must be removed if it's not a symlink
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rm -v /etc/resolv.conf
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# and finally making the symlink
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ln -sfv /var/run/NetworkManager/resolv.conf /etc/resolv.conf
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# Let's just see it's ok
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ls -l /etc/resolv.conf
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cat /etc/resolv.conf
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set +x
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