FluxDHCP vs Open DHCP Server

FluxDHCP is a free, self-hosted DHCPv4 server managed through a web interface. It supports the DHCPv4 message types listed for RFC 2131, from discovery and address requests to acknowledgments, releases and other listed operations. Administrators can define address pools with subnet ranges, gateways, DNS servers, netmasks and lease times, choose sequential or random allocation, and check for overlapping pools. Static MAC-to-IP reservations and per-device DHCP option overrides are supported. Lease records track offered, bound, released and expired states, with automatic cleanup for expired entries. A packet logger records transaction details, direction, raw options, client information and millisecond timestamps. Webhooks can send DHCP events to external services by HTTP POST or GET, with template variables and custom headers. Configuration can be imported or exported as JSON, and imported changes are hot-reloaded. The project is AGPL-3.0 licensed and supports English and Chinese, dark mode and a responsive mobile-friendly interface. It requires Node.js 20 or later; Docker Compose is recommended, and binding UDP port 67 requires root or administrator privileges.

Open DHCP Server is free, open-source software that provides Dynamic Host Configuration Protocol service on Linux and self-hosted, on-premises deployments. It assigns addresses through static hosts and dynamic DHCP ranges, supporting up to 125 ranges on one server. Multiple zones can run on a single server, with BOOTP and relay-agent support. DHCP options may be set globally, for a range, or for an individual client, using string, IP, hexadecimal-string, or byte-array values without defining option types. Ranges can be filtered by MAC ranges, vendor options, and user options. Replicated fail-safe operation supports continuity, while lease status appears on an auto-refreshing HTML page. The project describes low CPU use, small executable size, and very low memory requirements. It is released under the GNU General Public License, with a GPL-2.0 repository license. The project says it suits experts and small or home deployments, including people without DHCP protocol knowledge.