Validating DNS Consistency

Difficulty: entry

Source: devops-interviews/devops-interview-questions by Alex Muradov

Answer

Scenario

Your monitoring alerts indicate that DNS resolution might be inconsistent across servers, and you need to confirm both IPv4 and IPv6 records for a given domain.

Task

Add IPv4 and IPv6 address entries for the domain example.local to /etc/hosts using the format <ip_address> <hostname> with each record on a separate line.

Example

198.51.100.42 example.local
2001:db8:85a3::8a2e:370:7334 example.local

📹 Video Solution