2022-09-14 22:09:19 +00:00
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#!/bin/bash
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# Run this script with "(sudo) bash <filename> <args>".
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# Exit on error.
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set -e
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[[ ! "$1" == "yes" ]] && (
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printf "
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This script modifies networking and will reboot your system!
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Please ensure you have backup access.
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DO NOT USE THIS IF YOU HAVE NO DHCP OR NEED STATIC IP ADDRESSING!!
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To confirm, please re-run this script with \"yes\"
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\"%s yes\".\n" "$0"
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exit 1;
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)
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2022-09-30 11:04:32 +00:00
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cat << EOF > /etc/systemd/network/dhcp.network
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2022-09-14 22:09:19 +00:00
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[Match]
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Name=*
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[Network]
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DHCP=yes
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DNSOverTLS=opportunistic
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2023-05-08 19:58:37 +00:00
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DNS=9.9.9.9
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2022-09-14 22:09:19 +00:00
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2023-05-08 19:58:37 +00:00
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DNS=149.112.112.112
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2022-09-14 22:09:19 +00:00
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# Link discovery causes some issues so disable it.
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LLDP=no
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EOF
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# Before rebooting ensure old networking isn't started on boot.
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systemctl disable networking
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systemctl enable systemd-networkd
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2023-05-22 23:22:51 +00:00
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# Only enable systemd if it's installed.
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(apt install systemd-resolved && \
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# Enable systemd-resolved & link stub-resolv.conf.
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systemctl enable --now systemd-resolved && \
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ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf) || \
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# Note that systemd-resolved is not available.
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printf 'systemd-resolved not available! OK, skipping it...\n';
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2022-09-14 22:09:19 +00:00
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# Final warning.
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printf 'Rebooting in 30 seconds, hit ctrl+c to cancel.\n'
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sleep 30;
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halt --reboot
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