Configure and verify NTP as a client
Configure and verify NTP as a client
“Time is inherently important to the function of routers and networks. It provides the only frame
of reference between all devices on the network. This makes synchronized time extremely
important. Without synchronized time, accurately correlating information between devices
becomes difficult, if not impossible. When it comes to security, if you cannot successfully
compare logs between each of your routers and all your network servers, you will find it very
155
hard to develop a reliable picture of an incident. Finally, even if you are able to put the pieces
together, unsynchronized times, especially between log files, may give an attacker with a good
attorney enough wiggle room to escape prosecution.” –Thomas Akin, in Hardening Cisco
Routers.