# Section 05: NTP and NFS Enumeration ## NTP and NFS NTP (Network Time Protocol) > The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. In operation since before 1985, NTP is one of the oldest Internet protocols in current use. NFS > Network File System (NFS) is a distributed file system protocol originally developed by Sun Microsystems (Sun) in 1984, allowing a user on a client computer to access files over a computer network much like local storage is accessed. ntpdate > ntpdate is a computer program used to quickly synchronize and set computers' date and time by querying a Network Time Protocol server. ntptrace > ntptrace determines where a given Network Time Protocol (NTP) server gets its time from, and follows the chain of NTP servers back to their master time source. showmount > showmount queries the mount daemon on a remote host for information about the state of the NFS server on that machine. Links * * * * *