simple DNS test

This commit is contained in:
rootzoll
2020-01-20 19:33:24 +01:00
parent 02d844f864
commit e101e3aa6e

View File

@@ -22,62 +22,57 @@ if [ "${DNSSERVER}" = "test" ]; then
dnsworking=$(host w3c.org | grep -c "w3c.org has address")
# when no dialog just return result of test and exit
if [ "${NODIALOG}" = "nodialog" ]; then
if [ "${NODIALOG}" = "nodialog" ] || [ ${dnsworking} -eq 1 ]; then
echo "dnsworking=${dnsworking}"
exit 0
fi
# when dns not working ask in dialog to set a preset DNS
if [ ${dnsworking} -eq 0 ]; then
whiptail --title ' DNS Test Failed ' --yes-button='Set DNS 1.1.1.1' --no-button='Ignore' --yesno "It looks like your DNS within local network is not working.\n
# dns is not working --> ask in dialog to set a preset DNS
whiptail --title ' DNS Test Failed ' --yes-button='Set DNS 1.1.1.1' --no-button='Ignore' --yesno "It looks like your DNS within local network is not working.\n
Do you want to set the fixed DNS 1.1.1.1 by cloudfare (they claim they provide privacy) for your RaspiBlitz and reboot?\n
" 10 64
if [ $? -eq 0 ]; then
echo "SETTING 1.1.1.1"
DNSSERVER="1.1.1.1"
autoreboot=1
else
echo "Ignoring DNS-Test fail"
fi
if [ $? -eq 0 ]; then
echo "# SETTING 1.1.1.1"
DNSSERVER="1.1.1.1"
autoreboot=1
else
echo "DNS TEST --> OK"
echo "# Ignoring DNS-Test fail"
fi
exit 1
fi
echo "The DNS server you want to set is: ${DNSSERVER}"
# checking parameter
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"
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"
echo "# OK IPv4"
else
echo "FAIL - not an IPv4 or IPv6 address"
echo "error='not an IPv4 or IPv6 address'"
exit 1
fi
echo ""
# setting DNS address
echo "Setting DNS server in /etc/dhcpcd.conf ..."
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 "# OK"
echo ""
# make sure entry in raspiblitz.conf exists
source /mnt/hdd/raspiblitz.conf
if [ ${#dnsServer} -eq 0 ]; then
echo "Adding value to /mnt/hdd/raspiblitz.conf"
echo "# Adding value to /mnt/hdd/raspiblitz.conf"
echo "dnsServer=${DNSSERVER}" >> /mnt/hdd/raspiblitz.conf
else
echo "Updating value in /mnt/hdd/raspiblitz.conf"
echo "# Updating value in /mnt/hdd/raspiblitz.conf"
sudo sed -i "s/^dnsServer=.*/dnsServer=${DNSSERVER}/g" /mnt/hdd/raspiblitz.conf
fi
echo "OK"
echo "# OK"
echo ""
echo "DNS Server is set - reboot needed before active"
echo "# DNS Server is set - reboot needed before active"
if [ ${autoreboot} -eq 1 ]; then
sudo shutdown -r now
fi