Chef is a systems integration framework, built to bring the benefits of configuration management to your entire infrastructure. With Chef, you can manage your servers by writing code, not by running commands (via Cookbooks), integrate tightly with your applications, databases, LDAP directories, and more (via Libraries), and easily configure applications that require knowledge about your entire infrastructure ("What systems are running my application?" "What is the current master database server?").
DHCPD Configuration Editor (DCE) is a Web service that allows you to update MAC addresses in the dhcpd.conf of an ISC DHCP server. It can load a dhcpd.conf file from a server, save a modified dhcpd.conf file to a server, import a dhcpd.conf file from the local filesystem, export a modified dhcpd.conf to the local filesystem, and change the MAC address of previously declared host entries. It can be used with the minimalist General Configuration Form Manager server, or with Apache and its PHP module.