In a scenario where a website's DNS records are incorrect, causing it to be unreachable, how would you troubleshoot and resolve this issue?

Updating DNS records with the correct information is crucial for resolving DNS-related issues that make a website unreachable. This involves accessing the domain registrar or DNS provider's control panel and ensuring that the DNS records (such as A records, CNAME records) are correctly configured to point to the website's hosting server. Checking the DNS configuration on the server helps identify any misconfigurations or discrepancies. Flushing the DNS cache on the client can resolve cached DNS issues but doesn't address incorrect DNS records directly. Testing connectivity using nslookup is a diagnostic step to verify DNS resolution, but it alone does not fix the incorrect records.