Parent nameservers not updating Woman random cam
dig @ns1.dig @ns2.Since there is no ANSWER section or IP address both the nameservers does not constitute open dns server.
If you happen to run bind8 or later, all you have to do is set 'recursion no' within options to disable dns server answering recursive queries.
When changing nameserver records, first ensure that your new nameserver(s) define the same records as your old nameservers.
That is to say, your new nameservers must be in a ready-to-use state.
DNS (Domain name system) may not be known to most people who use the Internet but it is the real invisible force driving the Internet without which everyone would be seeing numbers and IPs. Use the DOT in the end, whenever you specify a domain name in the DNS zone file.
The whole meaning of domain names exists today just because of DNS. This DOT is so important and if you forget this you will have nightmares with your dns configuration. simply because it tells to start query from root servers (denoted by dot) 5.
Running the dns server 'open' is a big security risk since it answers recursive queries both from inside and outside your network.
For A records, MX records, PTR records and the like there is a nice way to update a record while still not having inconsistent data.If you just changed the record now, DNS resolvers all over the world who don't have the old data cached would instantly see the new IP address (184.108.40.206).But DNS resolvers who do have this record cached (e.g.If for example, there was some webserver behind those IPs, some browsers would now be accessing your old webserver (on the old IP) and some would request data from your new webserver (on the new IP). So we'd have had to wait 1 hour in our last example after reducing the TTL to 30 because the old TTL was 1 hour. Or you can now even further reduce the TTL to 5 seconds.The easy solution to this inconsistent state is as follows: First reduce the TTL of the record that you want to change to a minimal value, e.g. Then wait 30 seconds, and then do the actual update to the record.