Network Access Control

The book I read to research this post was Network Access Control for Dummies by Jay Kelley et al which is a very good book which I bought from amazon. One thing a lot of companies don't appreciate is if someone has too many permissions on a computer network they can potentially do a lot more harm than someone who doesn't have enough permissions. They can delete & view & maybe copy important material. From a network administrators everything should be locked down with unique passwords & no one should have access to the network through anything like mobile devices or instant messaging. The users point of view however is the complete opposite & they need to come to a compromise whilst still keeping the network secure. On its simplest level assigning permissions is as simple as right clicking a program & assigning permissions to it which are then password protected. At a more advanced level it's using GPMC or Group Policy Management Console which comes as standard with windows server 2008 or if you have windows vista, 7 or 8 can be downloaded free from the microsoft web site. The network administrator needs to have a pretty good idea how the users access the system & if they use mobile devices may need to use anti virus software specifically for that product.