External IP lookup

src/freedombone-utils-network

 # OpenDNS ipv6 DNS  2620:0:ccc::2
 IPV4_ADDRESS_TEST_DESTINATION='85.214.73.63'
 IPV6_ADDRESS_TEST_DESTINATION='2620:0:ccc::2'
-EXTERNAL_IP_LOOKUP_URL='ifcfg.me'
 
 # The static IP address of the system within the local network
 # By default the IP address is dynamic within your LAN
 }
 
 function get_external_ipv4_address {
-    nslookup . $EXTERNAL_IP_LOOKUP_URL | grep Address | tail -n 1 | awk -F ' ' '{print $2}'
+    curl ipinfo.io/ip
 }
 
 function get_ipv4_address {
     ip_update_script=/usr/bin/externalipupdate
     { echo '#!/bin/bash';
       echo "existing_ip=\$(cat $CONFIGURATION_FILE | grep \"EXTERNAL_IPV4_ADDRESS=\" | head -n 1 | awk -F '=' '{print \$2}')'";
-      echo "curr_ip=\$(nslookup . $EXTERNAL_IP_LOOKUP_URL | grep Address | tail -n 1 | awk -F ' ' '{print \$2}')";
+      echo "curr_ip=\$(curl ipinfo.io/ip)";
       echo "if [[ \"\$curr_ip\" != \"\$existing_ip\" ]]; then";
       echo "  sed -i \"s|EXTERNAL_IPV4_ADDRESS=.*|EXTERNAL_IPV4_ADDRESS=\${curr_ip}|g\" $CONFIGURATION_FILE";
       echo "  echo \"\$(date)\" >> ~/${PROJECT_NAME}-external-ip-changes.txt";