<?xml version="1.0" encoding="utf-8"?> <service> <short>TFTP</short> <description>The Trivial File Transfer Protocol (TFTP) is a protocol used to transfer files to and from a remote machine in s simple way. It is normally used only for booting diskless workstations and also to transfer data in the Preboot eXecution Environment (PXE).</description> <port protocol="udp" port="69"/> <module name="nf_conntrack_tftp"/> </service>