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

• https://en.wikipedia.org/wiki/Network_Time_Protocol

• https://en.wikipedia.org/wiki/Network_File_System

• https://linux.die.net/man/8/ntpdate

• https://linux.die.net/man/8/ntptrace

• https://linux.die.net/man/8/showmount