You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.9 KiB
43 lines
1.9 KiB
#!/bin/bash
|
|
|
|
# command info
|
|
if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then
|
|
echo "config script to set a the DNS server that should be used"
|
|
echo "internet.dns.sh [DNS-SERVER]"
|
|
exit 1
|
|
fi
|
|
|
|
# 1. parameter
|
|
DNSSERVER="$1"
|
|
echo "The DNS server you want to set is: ${DNSSERVER}"
|
|
|
|
# checking for IP address
|
|
if [[ $DNSSERVER =~ ^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$ ]]; then
|
|
echo "OK IPv6"
|
|
elif [[ $DNSSERVER =~ ^([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])$ ]]; then
|
|
echo "OK IPv4"
|
|
else
|
|
echo "FAIL - not an IPv4 or IPv6 address"
|
|
exit 1
|
|
fi
|
|
echo ""
|
|
|
|
# setting DNS address
|
|
echo "Setting DNS server in /etc/dhcpcd.conf ..."
|
|
sudo sed -i "s/^static domain_name_servers=.*/static domain_name_servers=${DNSSERVER}/g" /etc/dhcpcd.conf
|
|
echo "OK"
|
|
echo ""
|
|
|
|
# make sure entry in raspiblitz.conf exists
|
|
source /mnt/hdd/raspiblitz.conf
|
|
if [ ${#dnsServer} -eq 0 ]; then
|
|
echo "Adding value to /mnt/hdd/raspiblitz.conf"
|
|
echo "dnsServer=${DNSSERVER}" >> /mnt/hdd/raspiblitz.conf
|
|
else
|
|
echo "Updating value in /mnt/hdd/raspiblitz.conf"
|
|
sudo sed -i "s/^dnsServer=.*/dnsServer=${DNSSERVER}/g" /mnt/hdd/raspiblitz.conf
|
|
fi
|
|
echo "OK"
|
|
echo ""
|
|
|
|
echo "DNS Server is set - reboot needed before active"
|