104 䡲 Cyber Forensics Field Manual, Second Edition
of the network. ese routers are typically at the edge of your network and connect directly to
the Internet.
Lets look at an example. We will detail the necessary steps to specify an NTP server for two
Cisco routers and update their software clocks.
After you have found a time source that’s in your geographical area, log in to the routers with
administrative privileges. en, issue the following commands:
Router# Confi g terminal
Router(confi g)# ntp server TimeServerOne prefer
Router(confi g)# ntp server TimeServerTwo
Router(confi g)# ntp update-calendar
ese commands set TimeServerOne (which you would replace with the IP address of the
selected time server) as the primary time server. And, of ...