Secure NTP template

The Network Time Protocol (NTP) is the de-facto means Internet hosts use to synchronize their clocks. A reliable and accurate notion of time is important for a number of services, including distributed applications, authentication services, multi-user databases and...

How to upgrade a Cisco stack

One of the task of a good Network engineer is update the Cisco IOS to avoid bugs and to have new features; but what is the correct procedure to upgrade a Cisco stack, for instance two 2960 switches in stack? There are two main methods to upgrade the IOS: TAR image BIN...

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