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resolv.conf parsing optimizations

This commit is contained in:
Nyr 2020-05-29 14:16:29 +02:00 committed by Aleksandar Spasojevic
parent 7aff38d8d1
commit 3bd0936b35

View file

@ -283,13 +283,13 @@ server 10.8.0.0 255.255.255.0" > /etc/openvpn/server/server.conf
1|"")
# Locate the proper resolv.conf
# Needed for systems running systemd-resolved
if grep -q "127.0.0.53" "/etc/resolv.conf"; then
if grep -q '^nameserver 127.0.0.53' "/etc/resolv.conf"; then
resolv_conf="/run/systemd/resolve/resolv.conf"
else
resolv_conf="/etc/resolv.conf"
fi
# Obtain the resolvers from resolv.conf and use them for OpenVPN
grep -v '#' "$resolv_conf" | grep nameserver | grep -E -o '[0-9]{1,3}(\.[0-9]{1,3}){3}' | while read line; do
grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | while read line; do
echo "push \"dhcp-option DNS $line\"" >> /etc/openvpn/server/server.conf
done
;;