dhcpd man page — Describes how the DHCP daemon works.

dhcpd.conf man page — Explains how to configure the DHCP configuration file; includes some examples.

dhcpd.leases man page — Describes a persistent database of leases.

dhcp-options man page — Explains the syntax for declaring DHCP options in dhcpd.conf; includes some examples.

dhcrelay man page — Explains the DHCP Relay Agent and its configuration options.

/usr/share/doc/dhcp-<version>/ — Contains sample files, README files, and release notes for current versions of the DHCP service.