How can you resolve DNS resolution issues in VPC?
The following step by step will resolve
1. Verify VPC DNS Settings
2. Verify DNS Server Configuration
3. Test DNS Resolution
4. Check Route 53 Hosted Zones
5. Check VPC Peering DNS Settings
6. Check Security Groups and NACLs
7. Verify Route 53 Resolver Rules
8. Check DHCP Option Sets
9. Flush DNS Cache
10. Use Route 53 Resolver Query Logs