v.20.5Improvement

Automatically Update DNS Cache for User Connection Validation

Official CH changelog text
Automatically update DNS cache, which is used to check if user is allowed to connect from an address. #11487 (tavplubix).
Automatically updates the DNS cache used to verify if a user is allowed to connect from a specific address.

Why it matters

This feature ensures that the DNS cache is kept up-to-date automatically, preventing stale DNS entries from causing authorization issues when connecting from dynamic or frequently changing IP addresses. It improves security and reliability in user access controls based on DNS.

How to use it

The DNS cache update runs automatically without requiring manual intervention. Users benefit from the updated DNS resolution for connection permission checks transparently.

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