How to update local dns cache on Mac

Today, I add one of my domains to Cloudflare, but after I added a new record, I can’t access the web on my Mac, when I try to ping the host, it reports Unknown host, but on some servers, it can be accessed.

So I think it’s the problem of the local dns, and I find the solution from this article How to Flush your DNS Cache on Mac, the solution is run the following command on the Terminal.

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder