Simple Python script to do an AXFR against every name server in a domain.

axfr.py

#!/usr/bin/env python3

import sys
import dns.resolver
import dns.reversename
import dns.zone
import dns.exception

TIMEOUT = 15.0

def nameservers(fqdn):
    try:
        ans = dns.resolver.query(fqdn, 'NS')
        return [a.to_text() for a in ans]

    except dns.exception.DNSException:
        return []


def axfr(domain, nameserver):
    try:
        z = dns.zone.from_xfr(dns.query.xfr(ns, domain, lifetime=TIMEOUT))
        return [z[n].to_text(n) for n in z.nodes.keys()]

    except:
        return None


if __name__ == '__main__':
    domain = sys.argv[1]
    nservers = [n for n in nameservers(domain)]
    
    for ns in nservers:
        recs = axfr(domain, ns)
        if recs is not None:
            fn = '{0}_{1}axfr'.format(domain, ns)
            with open(fn, 'w') as f:
                f.write('\n'.join(recs))