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Create check-dns.sh

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spiritLHLS 2023-04-04 19:45:04 +08:00 committed by GitHub
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#!/bin/bash
#from https://github.com/spiritLHLS/pve
DNS_SERVER="8.8.8.8"
RESOLV_CONF="/etc/resolv.conf"
grep -q "^nameserver ${DNS_SERVER}$" ${RESOLV_CONF}
if [ $? -eq 0 ]; then
echo "DNS server ${DNS_SERVER} already exists in ${RESOLV_CONF}."
else
echo "Adding DNS server ${DNS_SERVER} to ${RESOLV_CONF}..."
echo "nameserver ${DNS_SERVER}" >> ${RESOLV_CONF}
fi