When configuring a DHCP server, several best practices enhance its efficiency and reliability. Firstly, ensure proper subnetting to organize and optimize IP address allocation. Set lease durations appropriately to avoid address conflicts and ensure dynamic allocation. Implement redundancy with multiple DHCP servers for fault tolerance. Carefully define and document DHCP scope options, including DNS servers and gateway information. Regularly monitor DHCP server logs for potential issues and maintain an updated inventory of leased IP addresses. Security measures, such as using DHCP snooping and implementing proper access controls, safeguard against unauthorized DHCP servers and address spoofing. Regularly update DHCP server software and follow security best practices to mitigate vulnerabilities. These practices collectively contribute to a well-managed, secure, and resilient DHCP infrastructure.