bash/dns-ecs-debug.bash: initial commit

bash/dns-ecs-debug.bash

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+# This script just digs domains that return information the authoritative
+# nameserver receives which is resolver's IP and ECS if the server in
+# question sends that.
+# $@ takes all parameters so another DNS server can be specified
+# e.g. ./dns-ecs-debug.bash @9.9.9.11
+
+echo "Google $@"
+dig +short TXT o-o.myaddr.l.google.com. "$@"
+echo ""
+
+echo "Akamai dualstack $@"
+dig +short TXT whoami.ds.akahelp.net. "$@"
+echo ""
+
+echo "Akamai IPv6 $@"
+dig +short TXT whoami.ipv6.akahelp.net. "$@"
+echo ""
+
+echo "Akamai IPv4 $@"
+dig +short TXT whoami.ipv4.akahelp.net. "$@"
+echo ""