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How Stack Overflow plans to survive the next DNS attack
Let’s talk about DNS. After all, what could go wrong? It’s just cache invalidation and naming things .
DNS at Stack Overflow is… complex. We have hundreds of DNS domains and thousands of DNS records. We have gone from running our own BIND server to hosting DNS with multiple cloud providers , and we change things fairly often. Keeping everything up to date and synced at multiple DNS providers is difficult. We built…
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Let’s talk about DNS. After all, what could go wrong? It’s just cache invalidation and naming things .