Can I copy existing DMARC and domainkey records to a new host?

Posted on By firstdns
Non classé

Hi DNS experts, I’m a fairly experienced developer who has configured a lot WWW domain records. I have a basic understanding of MX records, but I’ve just encountered something I’m not familiar with and would sincerely appreciate your help. I’m helping a client move a simple WordPress site to a new web host. Their current … Read More “Can I copy existing DMARC and domainkey records to a new host?” »

How to tell if a DNS record is in cache, by looking at the DNS response?

Posted on By firstdns
Non classé

Dunno if this subreddit is the right place. This question came about to be, from a networking assignment at college. Is it possible to tell whether the DNS response came from an actual DNS lookup or just returned from cache, by simply looking at the DNS response packet (in say Wireshark). I’m assuming the “authoritative … Read More “How to tell if a DNS record is in cache, by looking at the DNS response?” »

What is DNS used for? Many many people do not know, but you can also use DNS to block ads!

Posted on By firstdns
Non classé

Asked about how to block ads, but nobody knew. After having to ask everywhere for the 5-6th time, here’s the answers based on what 2-3 users have said on how to fully block ads on mobile: Best Helpful Answers You have to use both UBO + DNS ad blocking UBO is “a chrome extension that … Read More “What is DNS used for? Many many people do not know, but you can also use DNS to block ads!” »