mirror of
https://gitea.blesmrt.net/mikaela/shell-things.git
synced 2024-12-01 15:59:22 +01:00
39 lines
1022 B
Bash
39 lines
1022 B
Bash
|
#!/usr/bin/env bash
|
||
|
|
set -x
|
||
|
|
|
||
|
|
# I just had a feeling I should also have a quick script to quickly restore
|
||
|
|
# systemd-resolved handling of the file.
|
||
|
|
|
||
|
|
# I know there are old versions that used something else, but I don't remember
|
||
|
|
# that name and they are ancient.
|
||
|
|
if ! hash resolvectl 2>/dev/null; then
|
||
|
|
echo "You don't seem to have systemd-resolved (or resolvectl) installed." 1>&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Require root or exit
|
||
|
|
if [ "$(id -u)" != "0" ]; then
|
||
|
|
echo "This script requires root." 1>&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# It's pointless to make a dead symlink as it must be running
|
||
|
|
systemctl enable --now systemd-resolved.service
|
||
|
|
|
||
|
|
# In case I am behind the /etc/resolv.conf, it's immutable and read-only,
|
||
|
|
# which won't allow it to be rewritten.
|
||
|
|
chattr -V -i /etc/resolv.conf
|
||
|
|
chmod -v +w /etc/resolv.conf
|
||
|
|
|
||
|
|
# It must be removed if it's not a symlink
|
||
|
|
rm -v /etc/resolv.conf
|
||
|
|
|
||
|
|
# and finally making the symlink
|
||
|
|
ln -sfv /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
|
||
|
|
|
||
|
|
# Let's just see it's ok
|
||
|
|
ls -l /etc/resolv.conf
|
||
|
|
cat /etc/resolv.conf
|
||
|
|
|
||
|
|
set +x
|