How can I mitigate a DDoS attack using tools available or configurable through Kali Linux?

Kali Linux doesn't directly *mitigate* attacks, but it can help configure mitigation tools. You can use Kali to set up and test firewall rules (iptables, nftables) to block malicious traffic based on IP addresses or patterns. You can also configure rate limiting and traffic shaping. However, robust DDoS mitigation typically requires specialized services like Cloudflare or Akamai.