Network User Authentication
Some switches require users to authenticate themselves before gaining access to the rest of the network. Network Access Control (NAC) checks the characteristics of the device seeking admission to the network. More ...
What is a Botnet Attack and How to Identify It?
Attacks against networks are increasing because attackers find many networks are not properly patched and secured behind a firewall. Once attackers have compromised a machine, they simply install a bot on it to establish communication. The botnet is then controlled by the attacker. More ...
Wireless Network Security - The Basics of Securing a Wireless LAN
This article discusses how to secure your home and business wireless network. The process of a client associating and authenticating to an access point is standard. The security requirements vary from a home network, small business network and government departments requiring
stringent network security. More ...
Public Key Infrastructure
PKI (Public Key Infrastructure) uses a public and private key pair obtained and shared through a trusted authority. Public and private keys are used to lock (encrypt) and unlock (decrypt) data. Certificates are the cornerstones of the PKI. More ...
Network Security by Filtering
Filtering allows network administrators to control which packets are permitted or denied in or out of a network. It can be used to control how much bandwidth can be used by parts of a network, but is more often used to provide security for a network. More ...
What is Network AAA (Authentication, Authorization, and Accounting)?
The acronym AAA stands for three network procedures and processes that help to make a network more secure and reliable. The A's stand for Authentication, Authorization, and Accounting. The difference between authentication, authorization, and accounting is described here. More ...
Top Ways to Prevent Data Loss
Data loss is crippling for any business, especially in the age of big data where companies rely on digital information to refine their marketing, contact prospects, and process transactions. The first goal should be to prevent data loss from occurring in the first place. More ...
The Basics of Network Security
As technology and computer networks grow sophisticated over time, so do the intrusion techniques that scammers use in order to infiltrate them. If you're serious about protecting your company's private information , you need to do a lot more than have a router and firewall in place. More ...
Types of DoS (Denial of Service) Attacks
The methods used to launch a DoS (Denial of Service) attack can be divided into three essential categories: Flood attacks, Logic attacks, and Distributed Denial-of-Service (DDoS) attacks. Attackers may use each method to compromise or completely shut down an Internet server. More ...
Implementing a Secure Password Policy
If your network is compromised, identity thefts could use your company's customers credit card numbers and social security numbers to destroy their lives. And it's not only your company's customers who are going to suffer. When the source of the security breach is traced to your company, the result will be a negligence lawsuit. More ...
Wireless Network Security
Before the IEEE completed the 802.11i standard the Wi-Fi Alliance released WPA. After the release of the IEEE 802.11i standard, the Wi-Fi Alliance released WPA2 which is compatible with both the 802.11i standard and WPA. More ...
Firewall Perimeter Network (DMZ)
A DMZ (Demilitarized Zone) or Perimeter Network is the area between the firewall that protects the network from untrusted external networks (the Internet) and the firewall that protects the internal network. More ...
What is Penetration Testing?
This book serves as an introduction to the steps required to complete a penetration test or perform an ethical hack. You learn how to properly utilize and interpret the results of modern day hacking tools; which are required to complete a penetration test. More ...
