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simple DNS test

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This commit is contained in:
rootzoll
2020-01-20 19:33:24 +01:00
parent 02d844f864
commit e101e3aa6e
1 changed files with 18 additions and 23 deletions
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41
home.admin/config.scripts/internet.dns.sh
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@@ -22,62 +22,57 @@ if [ "${DNSSERVER}" = "test" ]; then
dnsworking=$(host w3c.org | grep -c "w3c.org has address") dnsworking=$(host w3c.org | grep -c "w3c.org has address")
# when no dialog just return result of test and exit # when no dialog just return result of test and exit
if [ "${NODIALOG}" = "nodialog" ]; then if [ "${NODIALOG}" = "nodialog" ] || [ ${dnsworking} -eq 1 ]; then
echo "dnsworking=${dnsworking}" echo "dnsworking=${dnsworking}"
exit 0 exit 0
fi fi
# when dns not working ask in dialog to set a preset DNS # dns is 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
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 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 " 10 64
if [ $? -eq 0 ]; then if [ $? -eq 0 ]; then
echo "SETTING 1.1.1.1" echo "# SETTING 1.1.1.1"
DNSSERVER="1.1.1.1" DNSSERVER="1.1.1.1"
autoreboot=1 autoreboot=1
else
echo "Ignoring DNS-Test fail"
fi
else else
echo "DNS TEST --> OK" echo "# Ignoring DNS-Test fail"
fi fi
exit 1
fi fi
echo "The DNS server you want to set is: ${DNSSERVER}" echo "The DNS server you want to set is: ${DNSSERVER}"
# checking parameter # 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 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 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 else
echo "FAIL - not an IPv4 or IPv6 address" echo "error='not an IPv4 or IPv6 address'"
exit 1 exit 1
fi fi
echo "" echo ""
# setting DNS address # 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=${DNSSERVER}/g" /etc/dhcpcd.conf sudo sed -i "s/^static domain_name_servers=.*/static domain_name_servers=${DNSSERVER}/g" /etc/dhcpcd.conf
echo "OK" echo "# OK"
echo "" echo ""
# make sure entry in raspiblitz.conf exists # make sure entry in raspiblitz.conf exists
source /mnt/hdd/raspiblitz.conf source /mnt/hdd/raspiblitz.conf
if [ ${#dnsServer} -eq 0 ]; then 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 echo "dnsServer=${DNSSERVER}" >> /mnt/hdd/raspiblitz.conf
else else
echo "Updating value in /mnt/hdd/raspiblitz.conf" echo "# Updating value in /mnt/hdd/raspiblitz.conf"
sudo sed -i "s/^dnsServer=.*/dnsServer=${DNSSERVER}/g" /mnt/hdd/raspiblitz.conf sudo sed -i "s/^dnsServer=.*/dnsServer=${DNSSERVER}/g" /mnt/hdd/raspiblitz.conf
fi fi
echo "OK" echo "# OK"
echo "" echo ""
echo "DNS Server is set - reboot needed before active" echo "# DNS Server is set - reboot needed before active"
if [ ${autoreboot} -eq 1 ]; then if [ ${autoreboot} -eq 1 ]; then
sudo shutdown -r now sudo shutdown -r now
fi fi