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https://github.com/pi-hole/pi-hole
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Merge pull request #327 from pi-hole/slamanna212-development
Additional upstream DNS choices, plus ability to add custom upstream DNS
This commit is contained in:
Adam Warner
commit
3ec9b3b021
@ -117,18 +117,20 @@ welcomeDialogs() {
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verifyFreeDiskSpace() {
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# 25MB is the minimum space needed (20MB install + 5MB one day of logs.)
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requiredFreeBytes=25600
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# 25MB is the minimum space needed (20MB install + 5MB one day of logs.)
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requiredFreeBytes=25600
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existingFreeBytes=`df -lk / 2>&1 | awk '{print $4}' | head -2 | tail -1`
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if ! [[ "$existingFreeBytes" =~ ^[0-9]\+$ ]]; then
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existingFreeBytes=`df -lk /dev 2>&1 | awk '{print $4}' | head -2 | tail -1`
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fi
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existingFreeBytes=`df -lk / 2>&1 | awk '{print $4}' | head -2 | tail -1`
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if ! [[ "$existingFreeBytes" =~ ^([0-9])+$ ]]; then
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existingFreeBytes=`df -lk /dev 2>&1 | awk '{print $4}' | head -2 | tail -1`
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fi
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if [[ $existingFreeBytes -lt $requiredFreeBytes ]]; then
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whiptail --msgbox --backtitle "Insufficient Disk Space" --title "Insufficient Disk Space" "\nYour system appears to be low on disk space. pi-hole recomends a minimum of $requiredFreeBytes Bytes.\nYou only have $existingFreeBytes Free.\n\nIf this is a new install you may need to expand your disk.\n\nTry running:\n 'sudo raspi-config'\nChoose the 'expand file system option'\n\nAfter rebooting, run this installation again.\n\ncurl -L install.pi-hole.net | bash\n" $r $c
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exit 1
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fi
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if [[ $existingFreeBytes -lt $requiredFreeBytes ]]; then
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whiptail --msgbox --backtitle "Insufficient Disk Space" --title "Insufficient Disk Space" "\nYour system appears to be low on disk space. pi-hole recomends a minimum of $requiredFreeBytes Bytes.\nYou only have $existingFreeBytes Free.\n\nIf this is a new install you may need to expand your disk.\n\nTry running:\n 'sudo raspi-config'\nChoose the 'expand file system option'\n\nAfter rebooting, run this installation again.\n\ncurl -L install.pi-hole.net | bash\n" $r $c
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echo "$existingFreeBytes is less than $requiredFreeBytes"
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echo "Insufficient free space, exiting..."
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exit 1
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fi
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}
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@ -302,10 +304,31 @@ setStaticIPv4() {
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fi
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}
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function valid_ip()
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{
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local ip=$1
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local stat=1
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if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
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OIFS=$IFS
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IFS='.'
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ip=($ip)
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IFS=$OIFS
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[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
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&& ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
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stat=$?
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fi
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return $stat
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}
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setDNS(){
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DNSChoseCmd=(whiptail --separate-output --radiolist "Select Upstream DNS Provider" $r $c 2)
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DNSChoseCmd=(whiptail --separate-output --radiolist "Select Upstream DNS Provider. To use your own, select Custom." $r $c 6)
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DNSChooseOptions=(Google "" on
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OpenDNS "" off)
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OpenDNS "" off
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Level3 "" off
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Norton "" off
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Comodo "" off
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Custom "" off)
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DNSchoices=$("${DNSChoseCmd[@]}" "${DNSChooseOptions[@]}" 2>&1 >/dev/tty)
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if [[ $? = 0 ]];then
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case $DNSchoices in
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@ -319,6 +342,79 @@ setDNS(){
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piholeDNS1="208.67.222.222"
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piholeDNS2="208.67.220.220"
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;;
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Level3)
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echo "::: Using Level3 servers."
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piholeDNS1="4.2.2.1"
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piholeDNS2="4.2.2.2"
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;;
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Norton)
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echo "::: Using Norton ConnectSafe servers."
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piholeDNS1="199.85.126.10"
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piholeDNS2="199.85.127.10"
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;;
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Comodo)
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echo "::: Using Comodo Secure servers."
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piholeDNS1="8.26.56.26"
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piholeDNS2="8.20.247.20"
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;;
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Custom)
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until [[ $DNSSettingsCorrect = True ]]
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do
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strInvalid="Invalid"
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if [ ! $piholeDNS1 ]; then
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if [ ! $piholeDNS2 ]; then
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prePopulate=""
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else
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prePopulate=", $piholeDNS2"
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fi
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elif [ $piholeDNS1 ] && [ ! $piholeDNS2 ]; then
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prePopulate="$piholeDNS1"
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elif [ $piholeDNS1 ] && [ $piholeDNS2 ]; then
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prePopulate="$piholeDNS1, $piholeDNS2"
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fi
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piholeDNS=$(whiptail --backtitle "Specify Upstream DNS Provider(s)" --inputbox "Enter your desired upstream DNS provider(s), seperated by a comma.\n\nFor example '8.8.8.8, 8.8.4.4'" $r $c "$prePopulate" 3>&1 1>&2 2>&3)
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if [[ $? = 0 ]];then
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piholeDNS1=$(echo $piholeDNS | sed 's/[, \t]\+/,/g' | awk -F, '{print$1}')
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piholeDNS2=$(echo $piholeDNS | sed 's/[, \t]\+/,/g' | awk -F, '{print$2}')
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if ! valid_ip $piholeDNS1 || [ ! $piholeDNS1 ]; then
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piholeDNS1=$strInvalid
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fi
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if ! valid_ip $piholeDNS2 && [ $piholeDNS2 ]; then
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piholeDNS2=$strInvalid
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fi
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else
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echo "::: Cancel selected, exiting...."
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exit 1
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fi
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if [[ $piholeDNS1 == $strInvalid ]] || [[ $piholeDNS2 == $strInvalid ]]; then
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whiptail --msgbox --backtitle "Invalid IP" --title "Invalid IP" "One or both entered IP addresses were invalid. Please try again.\n\n DNS Server 1: $piholeDNS1\n DNS Server 2: $piholeDNS2" $r $c
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if [[ $piholeDNS1 == $strInvalid ]]; then
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piholeDNS1=""
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fi
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if [[ $piholeDNS2 == $strInvalid ]]; then
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piholeDNS2=""
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fi
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DNSSettingsCorrect=False
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else
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if (whiptail --backtitle "Specify Upstream DNS Provider(s)" --title "Upstream DNS Provider(s)" --yesno "Are these settings correct?\n DNS Server 1: $piholeDNS1\n DNS Server 2: $piholeDNS2" $r $c) then
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DNSSettingsCorrect=True
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else
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# If the settings are wrong, the loop continues
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DNSSettingsCorrect=False
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fi
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fi
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done
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;;
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esac
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else
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echo "::: Cancel selected. Exiting..."
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@ -359,8 +455,16 @@ versionCheckDNSmasq(){
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$SUDO cp $newFileToInstall $newFileFinalLocation
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echo " done."
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$SUDO sed -i "s/@INT@/$piholeInterface/" $newFileFinalLocation
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$SUDO sed -i "s/@DNS1@/$piholeDNS1/" $newFileFinalLocation
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$SUDO sed -i "s/@DNS2@/$piholeDNS2/" $newFileFinalLocation
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if [[ "$piholeDNS1" != "" ]]; then
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$SUDO sed -i "s/@DNS1@/$piholeDNS1/" $newFileFinalLocation
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else
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$SUDO sed -i '/^server=@DNS1@/d' $newFileFinalLocation
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fi
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if [[ "$piholeDNS2" != "" ]]; then
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$SUDO sed -i "s/@DNS2@/$piholeDNS2/" $newFileFinalLocation
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else
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$SUDO sed -i '/^server=@DNS2@/d' $newFileFinalLocation
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fi
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}
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installScripts() {
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