Today I learned… When you have a DNS zone (example.com) and create a wildcard like *.example.com with a CNAME to example.com every subdomain is resolved to your A/AAAA entry for example.com If you run dig (domain information groper) you can see it in your shell: How to break it Today I learned, that if you add […]

Back in the days, when we migrated websites from one machine to another it was easy, get HTML and CSS, move it to another machine, change the DNS record and bam. Done. Today it is not that easy, because we have a lot of services involved: CDN, DNS, ERP and many other three-letter acronyms. One […]