--dhcp-hostsfile=<path>

Read DHCP host information from the specified file. If a directory is given, then read all the files contained in that directory in alphabetical order. The file contains information about one host per line. The format of a line is the same as text to the right of '=' in --dhcp-host. The advantage of storing DHCP host information in this file is that it can be changed without re-starting dnsmasq: the file will be re-read when dnsmasq receives SIGHUP.