Configuration in DNS
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Published: Oct 22, 2012
Application deployments often suffer from an excess of environment-specific configuration settings, including the hostnames of dependent services. Configuration in DNS is a valuable technique to reduce this complexity by using standard hostnames like ‘mail’ or ‘db’ and have DNS resolve to the correct host for that environment. This can be achieved in multiple ways, including split-horizon DNS or configuring search subdomains. Collaboration between development teams and IT operations is essential to achieve this, but that is unfortunately still difficult in some organizations.