I’m using the following code: import socket ip_list = [] ais = socket.getaddrinfo(“www.yahoo.com”,0,0,0,0) for result in ais: ip_list.append(result[-1][0]) ip_list = list(set(ip_list)) Or using a comprehension as: ip_list = list({addr[-1][0] for addr in socket.getaddrinfo(name, 0, 0, 0, 0)})
You can get a full list of entries in a zone with a zone transfer; you’d need to allow this for authorized systems in your DNS server. Once that’s done, you can run the transfer and grep the result: dig axfr localdomain.com | grep -i miller
Nslookup will try to resolve the name for the ip address of the DNS server configured as the primary DNS server on the client by performing a reverse lookup of the ip address. If you don’t have a rDNS zone set up for your network/subnet you’ll get the “server unknown” message as nslookup will be … Read more
I believe nslookup is used to test a DNS server itself, as opposed to utilizing your HOSTS file. http://support.microsoft.com/kb/200525 seems to indicate as much. Try just a simple ping. Does ping myMachine.MyDnsSuffix resolve to the loopback address you have specified in your HOSTS file?
I want to know what exact server in the end had the answer. Is that possible? This is not achievable. You will not find the specific authoritative server that was consulted named anywhere in the payload of a DNS reply. There are CHAOS queries that exist for the purpose of identifying the specific recursive server … Read more
We see from your output that IP address was changed from 12.43.168.248 to 12.43.168.105. This is not a big problem if you use DHCP. But this is very uncommon behavior if you use DHCP on Windows Server – it keeps leasing info by default, so you have a big chance that your DHCP pool is … Read more
You actually almost had it. On both window (at least my Win7 box I have here) and Ubuntu you would do nslookup -type=SRV _ldap._tcp.mydomain.com (notice the single dash)
RFC 1035 says: MNAME The <domain-name> of the name server that was the original or primary source of data for this zone. although in practise this MNAME field in the SOA is mostly unused these days. However if you’re using DNS dynamic updates then it must refer to the name of the DNS server which … Read more
Sadly, the answer here is “it depends”. The factors it depends on will vary with the domain and how the owning servers are set up as well as how your own local DNS is set up. First, for example, regarding the NS records returned: it is perfectly allowed to randomise the order in which those … Read more
Not really, no. This is all about the difference between forward and reverse DNS lookups. A forward lookup is the standard name->IP lookup. So, you would have to know all the names in advance. What you want is to do an IP->name lookup, but somehow get all the names you’ve applied in your Apache config … Read more