Struggling with pihole-FTL

DL6ER · January 1, 2020, 10:08pm

No, more details below.

They aren't. The web interface calls the CLI which edits /etc/dnsmasq.d/01-pihole.conf and restarts pihole-FTL afterwards.

You can find this here:

github.com/pi-hole/pi-hole

advanced/Scripts/webpage.sh

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          SetListeningMode() {
              source "${setupVars}"
          
              if [[ "$3" == "-h" ]] || [[ "$3" == "--help" ]]; then
                  echo "Usage: pihole -a -i [interface]
          Example: 'pihole -a -i local'
          Specify dnsmasq's network interface listening behavior
          
          Interfaces:
            local               Listen on all interfaces, but only allow queries from
                                devices that are at most one hop away (local devices)
            single              Listen only on ${PIHOLE_INTERFACE} interface
            all                 Listen on all interfaces, permit all origins"
                  exit 0
            fi
          
              if [[ "${args[2]}" == "all" ]]; then
                  echo -e "  ${INFO} Listening on all interfaces, permiting all origins. Please use a firewall!"
                  change_setting "DNSMASQ_LISTENING" "all"
              elif [[ "${args[2]}" == "local" ]]; then

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becoming effective here:

github.com/pi-hole/pi-hole

advanced/Scripts/webpage.sh

e41c4b5bb


      
          if [[ "${DNSMASQ_LISTENING}" == "all" ]]; then
              # Listen on all interfaces, permit all origins
              add_dnsmasq_setting "except-interface" "nonexisting"
          elif [[ "${DNSMASQ_LISTENING}" == "local" ]]; then
              # Listen only on all interfaces, but only local subnets
              add_dnsmasq_setting "local-service"
          else
              # Listen only on one interface
              # Use eth0 as fallback interface if interface is missing in setupVars.conf
              if [ -z "${PIHOLE_INTERFACE}" ]; then
                  PIHOLE_INTERFACE="eth0"
              fi
          
              add_dnsmasq_setting "interface" "${PIHOLE_INTERFACE}"
          fi

You can pass your options to the embedded dnsmasq using

pihole-FTL -- -v

If this tells you that the log file is not writable (because you invoke FTL as the wrong user), use either

sudo -u pihole pihole-FTL -- -v

or chown the file momentarily