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k0nsl/keep-resolvers.sh

Created July 28, 2020 09:09
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A sort of "set and forget" type of operation in order to not have your resolv.conf overwritten; uses two Danish resolvers (unicast and anycast respectively). Can be run once or placed in "/etc/cron.hourly" as "keep-resolvconf" -- remember to make it executable too. That is all.
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keep-resolvers.sh
#!/bin/sh
## this file can live in /etc/cron.hourly as "keep-resolvers".
sudo chattr -i /etc/resolv.conf
sudo chattr -e /etc/resolv.conf
sudo rm -f /etc/resolv.conf
sudo touch /etc/resolv.conf.tmp
sudo echo "nameserver 91.239.100.100" >> /etc/resolv.conf.tmp
sudo echo "nameserver 89.233.43.71" >> /etc/resolv.conf.tmp
sudo cp /etc/resolv.conf.tmp /etc/resolv.conf
sudo chattr +i /etc/resolv.conf
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