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Showing posts from May, 2015

The Importance of Network Security

Network security affects many organisations, whether they are large, small, or government organisations. If network security is breached an intruder can do all sorts of harm. That is why people need to be aware of and to be educated about network security and how to secure their computer and network. Systems are required to be updated regularly as new security flaws are discovered. Without being up to date, it makes it easy for a hacker to gain unauthorized access to the system. Security Focus If you are in charge of network security in your organisation, there are a few areas of focus: Deter – To educate people and discourage people to break into systems for illegal and malicious reasons Prevent – To put in place measures to prevent unauthorised access. This can be authorising uses with special access, encrypting communication, and updating security systems Detect – To become aware of a security breaches. This could be setting up logs to record who has accessed ...

Different types of Network Security

Different types of Network Security Wi‑Fi Protected Access (WPA) WPA encrypts information, and checks to make sure that the network security key has not been modified. WPA also authenticates users to help ensure that only authorized people can access the network. There are two types of WPA authentication: WPA and WPA2 . WPA is designed to work with all wireless network adapters, but it might not work with older routers or access points. WPA2 is more secure than WPA, but it will not work with some older network adapters. WPA is designed to be used with an 802.1X authentication server, which distributes different keys to each user. This is referred to as WPA-Enterprise or WPA2-Enterprise. It can also be used in a pre-shared key ( PSK ) mode, where every user is given the same password. This is referred to as WPA-Personal or WPA2-Personal . Wired Equivalent Privacy (WEP) WEP is an older network security method that is still ava...