def run(db, reporter):
"""
Check that all A-records have a corresponding PTR record.
Decide which domains to check depending on available SOA records.
"""
checked_zones = set(generate_soa_domains(db))
all_ok = True
for rr in generate_records(db, 'A'):
if not domain_in(rr.resolved_label, checked_zones):
continue
lookup = reversed_address(rr.address)
if db.query(lookup, record=['PTR', 'CNAME']):
continue
all_ok = False
reporter.error(
"Missing reverse [PTR, CNAME]: {0} ({1})".format(
lookup, repr(rr)))
return all_ok
def run(db, reporter):
"""
Check all CNAMEs within the database that they actually point to something.
Decide which domains to check depending on available SOA records.
"""
all_ok = True
checked_zones = set(generate_soa_domains(db))
for rr in generate_records(db, 'CNAME'):
if not domain_in(rr.resolved_target, checked_zones):
continue
lookup = rr.resolved_target
if db.query(lookup, record=['A', 'NS', 'CNAME', 'PTR']):
continue
all_ok = False
reporter.error(
"Missing target [A, NS, CNAME, PTR]: {0} ({1})".format(
lookup, repr(rr)))
return all_ok
