Set dnsmasq interface listening by default to local (#4509)

Signed-off-by: Christian König <ckoenig@posteo.de>

automated install/basic-install.sh

@@ -1731,7 +1731,7 @@ finalExports() {
     # If the setup variable file exists,
     if [[ -e "${setupVars}" ]]; then
         # update the variables in the file
-        sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1\b/d;/PIHOLE_DNS_2\b/d;/QUERY_LOGGING/d;/INSTALL_WEB_SERVER/d;/INSTALL_WEB_INTERFACE/d;/LIGHTTPD_ENABLED/d;/CACHE_SIZE/d;/DNS_FQDN_REQUIRED/d;/DNS_BOGUS_PRIV/d;' "${setupVars}"
+        sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1\b/d;/PIHOLE_DNS_2\b/d;/QUERY_LOGGING/d;/INSTALL_WEB_SERVER/d;/INSTALL_WEB_INTERFACE/d;/LIGHTTPD_ENABLED/d;/CACHE_SIZE/d;/DNS_FQDN_REQUIRED/d;/DNS_BOGUS_PRIV/d;/DNSMASQ_LISTENING/d;' "${setupVars}"
     fi
     # echo the information to the user
     {
@@ -1747,6 +1747,7 @@ finalExports() {
         echo "CACHE_SIZE=${CACHE_SIZE}"
         echo "DNS_FQDN_REQUIRED=${DNS_FQDN_REQUIRED:-true}"
         echo "DNS_BOGUS_PRIV=${DNS_BOGUS_PRIV:-true}"
+        echo "DNSMASQ_LISTENING=${DNSMASQ_LISTENING:-local}"
     }>> "${setupVars}"
     chmod 644 "${setupVars}"