dtc-xen_domUconf_standard VPS_PATH VPSHOSTNAME NODE_DOMAIN_NAME KERNELNAME IPADDR
When doing it's VPS install, dtc_reinstall_os will call a script to do the setup of the standard things like hostname, /etc/hosts, etc. dtc-xen_domUconf_standard does the job when the VPS type is more or less standard, this can be overridden whenever needed for other types of OS.
This does NOT include the setup of the network address(es) or the bootstrap of the operating system. Such tasks are performed elsewhere.
See http://www.gplhost.com/software-dtc-xen.html for updates.