Cisco Access-lists (ACL’s – Access Control Lists)

Posted Leave a commentPosted in Access-Lists, CCNA (ICND2), Networking 101, Security

Access-lists are the cornerstone of security in networking. They are used on Routers, Switches and Firewalls and are often a challenge to understand when first starting your career in networking. Before we dive into the configuration of access-lists, or otherwise known as ACL’s (Access Control Lists), it’s important to get an understanding of the concepts, […]

What is Binary?

Posted 1 CommentPosted in CCENT (ICND1), Networking 101

Bit’s, crumbs, nibbles, bytes, megabytes ??? Ever wondered why when you buy a 250 Gigabyte hard drive and you format it, you never actually get 250 Gigabytes??? Well it’s all in the exact wording used, and how the information is reported to you. If we understand the terms of binary, and the difference between a […]