The only DNS resolution related things online I could find are for the dnspython library.
I seems that with this library I have to perform separate A,AAA and CName queries, then for the CName do the same again recursively.
Is there not a simpler way to get a list of IP address for a DNS name?
I am scraping the CentOS mirror web page to get a list of mirrors and turn that into a list of IP address I can use on my firewall to allow servers to update.
Canonical answer is socket.getaddrinfo, however the returned list of tuples/ip addresses returned might not be exhaustive.
What DNS servers are your machines using? Maybe you could look at the --ipset feature of dnsmasq… and use Python only to convert a set of mirrors to a dnsmasq config fragment.
I’m using my ISP’s DNS servers.
Ultimately it isn’t that big of a deal to use dnspython or pydig if I write a recursive function on CName types (just in case the CName points to another CName). I was just being lazy is all.