18.8 An Unlikely Server: A Local Clock Impersonator
18.9 An NTP Polling Client
18.10 An NTP Broadcast Client
18.11 Other Points Relating to NTP
Most servers these days participate in some form of resource sharing, be it files, printers, or application data. Part of that process is some form of monitoring or logging of transactions. It is a good idea if all machines on the network have the same notion of what the current time is so that the timestamp associated with transactions is consistent across the network. That is where the Network Time Protocol (NTP) comes in. Whether the time that machines use is accurate is a separate issue. At this stage, all we want to ensure is that all machines use the same time. The NTP software has been part of HP-UX since HP-UX version 10. A machine can take various roles in an NTP configuration from a server to a broadcast client. This chapter discusses those roles, as well as configures both NTP servers and clients .
