情境
A user's website resolves to the wrong IP address, and the flowchart guides troubleshooting from local DNS cache to ISP-level issues.
這張圖裡有什麼
看懂背後的決策。
01
Check whether the wrong IP is from local DNS cache
02
Compare ISP DNS answer with a public resolver
03
Switch to public DNS as a temporary workaround
Use when diagnosing DNS resolution errors caused by stale or poisoned caches at the local or ISP level.