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Snow Leopard™ Server
book

Snow Leopard™ Server

by Daniel Eran Dilger
November 2009
Intermediate to advanced content levelIntermediate to advanced
976 pages
22h 28m
English
Wiley
Content preview from Snow Leopard™ Server

Chapter 19. Other Network Services

In This Chapter

  • Introduction to other

  • network services

  • Managing and

  • monitoring other

  • network services

Snow Leopard Server runs a variety of other important core network services, some of which are required to properly run a Mac OS X Server environment. This chapter describes how these additional core services work, what's involved in planning them, how the services are configured, and how to maintain and monitor them.

Introduction to Other Network Services

Snow Leopard Server has other network services that are vital to properly running Mac OS X Server. These services include:

  • Network Time Protocol (NTP) for syncing network time services

  • Simple Network Management Protocol (SNMP) for event logging

  • Secure Shell (SSH) for remote login

  • Virtual Network Computing (VNC) for remote screen sharing

  • Remote Management for use with Apple Remote Desktop

Network Time Protocol

NTP synchronizes network clocks using UTC (Coordinated Universal Time), a global standard for tracking the mean solar time maintained by the Royal Observatory in Greenwich. UTC compensates for the slowing of Earth's rotation by adding leap seconds at irregular intervals to the time calculated by atomic clocks in order to reflect the time maintained as Greenwich Mean Time (GMT).

Authoritative NTP servers, referred to as Stratum 1 servers, maintain the current UTC time. Secondary servers, known as Stratum 2 and 3 servers, regularly request the time from Stratum 1 servers and estimate the delay in sending ...

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Publisher Resources

ISBN: 9780470521311Purchase book