495 lines
11 KiB
Bash
Executable File
495 lines
11 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Pi-hole: A black hole for Internet advertisements
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# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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# Network-wide ad blocking via your own hardware.
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#
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# Web interface settings
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#
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# This file is copyright under the latest version of the EUPL.
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# Please see LICENSE file for your rights under this license.
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readonly setupVars="/etc/pihole/setupVars.conf"
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readonly dnsmasqconfig="/etc/dnsmasq.d/01-pihole.conf"
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readonly dhcpconfig="/etc/dnsmasq.d/02-pihole-dhcp.conf"
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# 03 -> wildcards
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readonly dhcpstaticconfig="/etc/dnsmasq.d/04-pihole-static-dhcp.conf"
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helpFunc() {
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cat << EOM
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::: Set admin options for the web interface of pihole
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:::
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::: Usage: pihole -a [options]
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:::
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::: Options:
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::: -p, password Set web interface password, an empty input will remove any previously set password
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::: -c, celsius Set Celsius temperature unit
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::: -f, fahrenheit Set Fahrenheit temperature unit
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::: -k, kelvin Set Kelvin temperature unit
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::: -h, --help Show this help dialog
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::: -i, interface Setup interface listening behavior of dnsmasq
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::: pihole -a -i local : Listen on all interfaces, but allow only queries from
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::: devices that are at most one hop away (local devices)
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::: pihole -a -i single : Listen only on one interface (see PIHOLE_INTERFACE)
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::: pihole -a -i all : Listen on all interfaces, permit all origins
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EOM
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exit 0
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}
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add_setting() {
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echo "${1}=${2}" >> "${setupVars}"
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}
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delete_setting() {
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sed -i "/${1}/d" "${setupVars}"
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}
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change_setting() {
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delete_setting "${1}"
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add_setting "${1}" "${2}"
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}
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add_dnsmasq_setting() {
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if [[ "${2}" != "" ]]; then
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echo "${1}=${2}" >> "${dnsmasqconfig}"
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else
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echo "${1}" >> "${dnsmasqconfig}"
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fi
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}
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delete_dnsmasq_setting() {
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sed -i "/${1}/d" "${dnsmasqconfig}"
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}
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SetTemperatureUnit(){
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change_setting "TEMPERATUREUNIT" "${unit}"
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}
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HashPassword(){
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# Compute password hash twice to avoid rainbow table vulnerability
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return=$(echo -n ${1} | sha256sum | sed 's/\s.*$//')
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return=$(echo -n ${return} | sha256sum | sed 's/\s.*$//')
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echo ${return}
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}
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SetWebPassword(){
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if [ "${SUDO_USER}" == "www-data" ]; then
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echo "Security measure: user www-data is not allowed to change webUI password!"
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echo "Exiting"
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exit 1
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fi
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if [ "${SUDO_USER}" == "lighttpd" ]; then
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echo "Security measure: user lighttpd is not allowed to change webUI password!"
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echo "Exiting"
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exit 1
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fi
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if (( ${#args[2]} > 0 )) ; then
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readonly PASSWORD="${args[2]}"
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readonly CONFIRM="${PASSWORD}"
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else
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read -s -p "Enter New Password (Blank for no password): " PASSWORD
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echo ""
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if [ "${PASSWORD}" == "" ]; then
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change_setting "WEBPASSWORD" ""
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echo "Password Removed"
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exit 0
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fi
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read -s -p "Confirm Password: " CONFIRM
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echo ""
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fi
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if [ "${PASSWORD}" == "${CONFIRM}" ] ; then
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hash=$(HashPassword ${PASSWORD})
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# Save hash to file
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change_setting "WEBPASSWORD" "${hash}"
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echo "New password set"
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else
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echo "Passwords don't match. Your password has not been changed"
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exit 1
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fi
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}
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ProcessDNSSettings() {
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source "${setupVars}"
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delete_dnsmasq_setting "server"
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COUNTER=1
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while [[ 1 ]]; do
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var=PIHOLE_DNS_${COUNTER}
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if [ -z "${!var}" ]; then
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break;
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fi
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add_dnsmasq_setting "server" "${!var}"
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let COUNTER=COUNTER+1
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done
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delete_dnsmasq_setting "domain-needed"
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if [[ "${DNS_FQDN_REQUIRED}" == true ]]; then
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add_dnsmasq_setting "domain-needed"
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fi
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delete_dnsmasq_setting "bogus-priv"
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if [[ "${DNS_BOGUS_PRIV}" == true ]]; then
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add_dnsmasq_setting "bogus-priv"
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fi
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delete_dnsmasq_setting "dnssec"
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delete_dnsmasq_setting "trust-anchor="
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if [[ "${DNSSEC}" == true ]]; then
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echo "dnssec
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trust-anchor=.,19036,8,2,49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5
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" >> "${dnsmasqconfig}"
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fi
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delete_dnsmasq_setting "host-record"
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if [ ! -z "${HOSTRECORD}" ]; then
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add_dnsmasq_setting "host-record" "${HOSTRECORD}"
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fi
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# Setup interface listening behavior of dnsmasq
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delete_dnsmasq_setting "interface"
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delete_dnsmasq_setting "local-service"
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if [[ "${DNSMASQ_LISTENING}" == "all" ]]; then
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# Listen on all interfaces, permit all origins
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add_dnsmasq_setting "except-interface" "nonexisting"
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elif [[ "${DNSMASQ_LISTENING}" == "local" ]]; then
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# Listen only on all interfaces, but only local subnets
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add_dnsmasq_setting "local-service"
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else
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# Listen only on one interface
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add_dnsmasq_setting "interface" "${PIHOLE_INTERFACE}"
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fi
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}
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SetDNSServers(){
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# Save setting to file
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delete_setting "PIHOLE_DNS"
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IFS=',' read -r -a array <<< "${args[2]}"
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for index in "${!array[@]}"
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do
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add_setting "PIHOLE_DNS_$((index+1))" "${array[index]}"
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done
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if [[ "${args[3]}" == "domain-needed" ]]; then
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change_setting "DNS_FQDN_REQUIRED" "true"
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else
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change_setting "DNS_FQDN_REQUIRED" "false"
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fi
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if [[ "${args[4]}" == "bogus-priv" ]]; then
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change_setting "DNS_BOGUS_PRIV" "true"
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else
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change_setting "DNS_BOGUS_PRIV" "false"
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fi
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if [[ "${args[5]}" == "dnssec" ]]; then
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change_setting "DNSSEC" "true"
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else
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change_setting "DNSSEC" "false"
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fi
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ProcessDNSSettings
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# Restart dnsmasq to load new configuration
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RestartDNS
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}
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SetExcludeDomains(){
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change_setting "API_EXCLUDE_DOMAINS" "${args[2]}"
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}
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SetExcludeClients(){
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change_setting "API_EXCLUDE_CLIENTS" "${args[2]}"
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}
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Reboot(){
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nohup bash -c "sleep 5; reboot" &> /dev/null </dev/null &
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}
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RestartDNS(){
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if [ -x "$(command -v systemctl)" ]; then
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systemctl restart dnsmasq &> /dev/null
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else
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service dnsmasq restart &> /dev/null
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fi
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}
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SetQueryLogOptions(){
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change_setting "API_QUERY_LOG_SHOW" "${args[2]}"
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}
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ProcessDHCPSettings() {
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source "${setupVars}"
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if [[ "${DHCP_ACTIVE}" == "true" ]]; then
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interface=$(grep 'PIHOLE_INTERFACE=' /etc/pihole/setupVars.conf | sed "s/.*=//")
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# Use eth0 as fallback interface
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if [ -z ${interface} ]; then
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interface="eth0"
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fi
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if [[ "${PIHOLE_DOMAIN}" == "" ]]; then
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PIHOLE_DOMAIN="local"
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change_setting "PIHOLE_DOMAIN" "${PIHOLE_DOMAIN}"
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fi
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if [[ "${DHCP_LEASETIME}" == "0" ]]; then
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leasetime="infinite"
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elif [[ "${DHCP_LEASETIME}" == "" ]]; then
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leasetime="24h"
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change_setting "DHCP_LEASETIME" "${leasetime}"
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else
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leasetime="${DHCP_LEASETIME}h"
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fi
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# Write settings to file
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echo "###############################################################################
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# DHCP SERVER CONFIG FILE AUTOMATICALLY POPULATED BY PI-HOLE WEB INTERFACE. #
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# ANY CHANGES MADE TO THIS FILE WILL BE LOST ON CHANGE #
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###############################################################################
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dhcp-authoritative
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dhcp-range=${DHCP_START},${DHCP_END},${leasetime}
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dhcp-option=option:router,${DHCP_ROUTER}
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dhcp-leasefile=/etc/pihole/dhcp.leases
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#quiet-dhcp
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" > "${dhcpconfig}"
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if [[ "${PIHOLE_DOMAIN}" != "none" ]]; then
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echo "domain=${PIHOLE_DOMAIN}" >> "${dhcpconfig}"
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fi
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if [[ "${DHCP_IPv6}" == "true" ]]; then
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echo "#quiet-dhcp6
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#enable-ra
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dhcp-option=option6:dns-server,[::]
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dhcp-range=::100,::1ff,constructor:${interface},ra-names,slaac,${leasetime}
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ra-param=*,0,0
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" >> "${dhcpconfig}"
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fi
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else
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rm "${dhcpconfig}" &> /dev/null
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fi
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}
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EnableDHCP(){
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change_setting "DHCP_ACTIVE" "true"
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change_setting "DHCP_START" "${args[2]}"
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change_setting "DHCP_END" "${args[3]}"
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change_setting "DHCP_ROUTER" "${args[4]}"
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change_setting "DHCP_LEASETIME" "${args[5]}"
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change_setting "PIHOLE_DOMAIN" "${args[6]}"
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change_setting "DHCP_IPv6" "${args[7]}"
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# Remove possible old setting from file
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delete_dnsmasq_setting "dhcp-"
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delete_dnsmasq_setting "quiet-dhcp"
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ProcessDHCPSettings
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RestartDNS
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}
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DisableDHCP(){
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change_setting "DHCP_ACTIVE" "false"
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# Remove possible old setting from file
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delete_dnsmasq_setting "dhcp-"
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delete_dnsmasq_setting "quiet-dhcp"
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ProcessDHCPSettings
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RestartDNS
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}
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SetWebUILayout(){
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change_setting "WEBUIBOXEDLAYOUT" "${args[2]}"
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}
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CustomizeAdLists() {
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list="/etc/pihole/adlists.list"
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if [[ "${args[2]}" == "enable" ]] ; then
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sed -i "\\@${args[3]}@s/^#http/http/g" "${list}"
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elif [[ "${args[2]}" == "disable" ]] ; then
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sed -i "\\@${args[3]}@s/^http/#http/g" "${list}"
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elif [[ "${args[2]}" == "add" ]] ; then
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echo "${args[3]}" >> ${list}
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elif [[ "${args[2]}" == "del" ]] ; then
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var=$(echo "${args[3]}" | sed 's/\//\\\//g')
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sed -i "/${var}/Id" "${list}"
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else
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echo "Not permitted"
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return 1
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fi
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}
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SetPrivacyMode(){
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if [[ "${args[2]}" == "true" ]] ; then
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change_setting "API_PRIVACY_MODE" "true"
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else
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change_setting "API_PRIVACY_MODE" "false"
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fi
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}
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ResolutionSettings() {
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typ="${args[2]}"
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state="${args[3]}"
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if [[ "${typ}" == "forward" ]]; then
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change_setting "API_GET_UPSTREAM_DNS_HOSTNAME" "${state}"
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elif [[ "${typ}" == "clients" ]]; then
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change_setting "API_GET_CLIENT_HOSTNAME" "${state}"
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fi
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}
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AddDHCPStaticAddress() {
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mac="${args[2]}"
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ip="${args[3]}"
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host="${args[4]}"
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if [[ "${ip}" == "noip" ]]; then
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# Static host name
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echo "dhcp-host=${mac},${host}" >> "${dhcpstaticconfig}"
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elif [[ "${host}" == "nohost" ]]; then
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# Static IP
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echo "dhcp-host=${mac},${ip}" >> "${dhcpstaticconfig}"
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else
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# Full info given
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echo "dhcp-host=${mac},${ip},${host}" >> "${dhcpstaticconfig}"
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fi
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}
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RemoveDHCPStaticAddress() {
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mac="${args[2]}"
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sed -i "/dhcp-host=${mac}.*/d" "${dhcpstaticconfig}"
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}
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SetHostRecord(){
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if [ -n "${args[3]}" ]; then
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change_setting "HOSTRECORD" "${args[2]},${args[3]}"
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echo "Setting host record for ${args[2]} -> ${args[3]}"
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else
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change_setting "HOSTRECORD" ""
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echo "Removing host record"
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fi
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ProcessDNSSettings
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# Restart dnsmasq to load new configuration
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RestartDNS
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}
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SetListeningMode(){
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source "${setupVars}"
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if [[ "${args[2]}" == "all" ]] ; then
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echo "Listening on all interfaces, permiting all origins, hope you have a firewall!"
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change_setting "DNSMASQ_LISTENING" "all"
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elif [[ "${args[2]}" == "local" ]] ; then
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echo "Listening on all interfaces, permitting only origins that are at most one hop away (local devices)"
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change_setting "DNSMASQ_LISTENING" "local"
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else
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echo "Listening only on interface ${PIHOLE_INTERFACE}"
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change_setting "DNSMASQ_LISTENING" "single"
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fi
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# Don't restart DNS server yet because other settings
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# will be applied afterwards if "-web" is set
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if [[ "${args[3]}" != "-web" ]]; then
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ProcessDNSSettings
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# Restart dnsmasq to load new configuration
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RestartDNS
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fi
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}
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Teleporter()
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{
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local datetimestamp=$(date "+%Y-%m-%d_%H-%M-%S")
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php /var/www/html/admin/scripts/pi-hole/php/teleporter.php > "pi-hole-teleporter_${datetimestamp}.zip"
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}
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main() {
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args=("$@")
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case "${args[1]}" in
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"-p" | "password" ) SetWebPassword;;
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"-c" | "celsius" ) unit="C"; SetTemperatureUnit;;
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"-f" | "fahrenheit" ) unit="F"; SetTemperatureUnit;;
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"-k" | "kelvin" ) unit="K"; SetTemperatureUnit;;
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"setdns" ) SetDNSServers;;
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"setexcludedomains" ) SetExcludeDomains;;
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"setexcludeclients" ) SetExcludeClients;;
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"reboot" ) Reboot;;
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"restartdns" ) RestartDNS;;
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"setquerylog" ) SetQueryLogOptions;;
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"enabledhcp" ) EnableDHCP;;
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"disabledhcp" ) DisableDHCP;;
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"layout" ) SetWebUILayout;;
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"-h" | "--help" ) helpFunc;;
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"privacymode" ) SetPrivacyMode;;
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"resolve" ) ResolutionSettings;;
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"addstaticdhcp" ) AddDHCPStaticAddress;;
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"removestaticdhcp" ) RemoveDHCPStaticAddress;;
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"hostrecord" ) SetHostRecord;;
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"-i" | "interface" ) SetListeningMode;;
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"-t" | "teleporter" ) Teleporter;;
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"adlist" ) CustomizeAdLists;;
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* ) helpFunc;;
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esac
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shift
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if [[ $# = 0 ]]; then
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helpFunc
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fi
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}
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