Moved from bitbucket.

dns_compare.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+import argparse
+import dns.query
+import re
+
+parser = argparse.ArgumentParser()
+parser.add_argument('--domain', help='Helps if all records to query are on the same domain.')
+parser.add_argument('--nameservers', nargs='+', help='IPv4 or IPv6 address of nameserver(s) to be queried.')
+parser.add_argument('--records', nargs='+', help='Hostname to query.')
+args = parser.parse_args()
+
+if args.domain:
+    for rec in args.records:
+        qname = dns.name.from_text(f'{rec}.{args.domain}')
+        q = dns.message.make_query(qname, dns.rdatatype.A)
+        for ns in args.nameservers: 
+            r = dns.query.udp(q, ns)
+            x = re.findall(fr'{str(rec)}.*', str(r))
+            print(x, ns)
+else:
+    for rec in args.records:
+        qname = dns.name.from_text(rec)
+        q = dns.message.make_query(qname, dns.rdatatype.A)
+        for ns in args.nameservers: 
+            r = dns.query.udp(q, ns)
+            x = re.findall(fr'{str(rec)}.*', str(r))
+            print(x, ns)