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https://github.com/getumbrel/umbrel-apps.git
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33 lines
1.0 KiB
Bash
Executable File
33 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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RESOLVED_SERVICE_NAME="systemd-resolved"
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RESOLVED_CONF_FILE="/etc/systemd/resolved.conf"
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# Check if the 'systemd-resolved' service is running
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if ! systemctl is-active --quiet "${RESOLVED_SERVICE_NAME}.service"; then
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echo "Service '${RESOLVED_SERVICE_NAME}' is not running"
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exit
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fi
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# Check if the DNS Stub Listener is running
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if cat "${RESOLVED_CONF_FILE}" | grep --quiet "^DNSStubListener=no$"; then
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echo "DNSStubListener already turned off"
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exit
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fi
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echo "Turning off the DNS Stub Listener"
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# Turn off DNSStubListener within config file
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sed -r -i.orig 's/#?DNSStubListener=yes/DNSStubListener=no/g' "${RESOLVED_CONF_FILE}"
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# Remove active resolv.conf which would have
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# localhost (systemd-resolved's DNS listener) as the DNS resolver
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rm -f /etc/resolv.conf
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# Create a symlink between systemd-resolved's upstream resolv.conf
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# and the OS's resolv.conf
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ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
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echo "Restart service '${RESOLVED_SERVICE_NAME}'"
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systemctl restart "${RESOLVED_SERVICE_NAME}" |