lemur/dns_providers/util.py [47:67]:
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    n = dns.name.from_text(domain)

    depth = 2
    default = dns.resolver.get_default_resolver()
    nameserver = default.nameservers[0]

    last = False
    while not last:
        s = n.split(depth)

        last = s[0].to_unicode() == u"@"
        sub = s[1]

        query = dns.message.make_query(sub, dns.rdatatype.NS)
        response = dns.query.udp(query, nameserver)

        rcode = response.rcode()
        if rcode != dns.rcode.NOERROR:
            function = sys._getframe().f_code.co_name
            metrics.send(f"{function}.error", "counter", 1)
            if rcode == dns.rcode.NXDOMAIN:
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lemur/plugins/lemur_acme/ultradns.py [404:424]:
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    n = dns.name.from_text(domain)

    depth = 2
    default = dns.resolver.get_default_resolver()
    nameserver = default.nameservers[0]

    last = False
    while not last:
        s = n.split(depth)

        last = s[0].to_unicode() == u"@"
        sub = s[1]

        query = dns.message.make_query(sub, dns.rdatatype.NS)
        response = dns.query.udp(query, nameserver)

        rcode = response.rcode()
        if rcode != dns.rcode.NOERROR:
            function = sys._getframe().f_code.co_name
            metrics.send(f"{function}.error", "counter", 1)
            if rcode == dns.rcode.NXDOMAIN:
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