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Diagnosing SSL, DNS, and Email Issues by Layer
SSL, DNS, and email failures often appear together after a domain migration, but they are separate systems. A layered checklist avoids changing unrelated records while trying to fix one symptom.For DNS, verify authoritative nameservers and query the relevant A, AAAA, CNAME, MX, and TXT records. For SSL, inspect the certificate actually served by the public endpoint, including hostname coverage and...
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WHM Administration: Build a Repeatable Account Troubleshooting Checklist
When a cPanel account reports a website failure, gather evidence before changing global server settings. Start with the domain's document root, account status, DNS resolution, and the exact HTTP response.Check the account's resource usage, PHP version, PHP-FPM pool, error logs, and disk or inode limits. A 500 error may come from application code, permissions, exhausted resources, or a missing PHP...
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