How to track the progress of changing resource records on different DNS?

Question

Computer networks

Different DNS servers with different "speeds" pull up information about changing resource records. I'd love to hear your ideas on how to nslookup a whole series of DNS servers in order to compare their responses.

Answer 1

Any service that checks the availability of the site. Among other things, you will see the address given by the local DNS server. For example, ping-admin.ru .
But in general, this is an idea of ​​dubious usefulness, especially considering that the given record may vary depending on the geographic location of the client. If you want a faster change of entries - set a low TTL, the vast majority of normal servers count with this parameter.

Answer 2

DNS servers don't pull anything up. When you change the zone, the changes from the master authoritative DNS are pushed to the slave, and that's it. The rest of the DNS servers turn to these two, and ONLY WHEN one of their clients asks to sober up your zone. If your zone has changed, the client will receive new data. If it hasn't changed, they will get the old ones accordingly.
The only point is if a certain DNS server has already requested names from your zone before, and then the data can be stored in its cache. Cache storage time = TTL specified in your zone settings. Usually it is 3600 seconds.