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 ...
Denial of Service Attack (DoS) Detection and Mitigation
A Denial of Service Attack is when a hacker attempts to consume such a large amount of a server's resources that it's services will be unavailable to its intended users. For example a DoS attack against a web server attempts to prevent it from serving web pages to
legitimate Internet clients. 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 ...
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 ...
Network Security
Network security starts with physical security. Network components such as servers, hubs, and routers should be located in a secure equipment room. Part of physical security is protecting your cable plant from damage and electronic eavesdropping. 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 ...
Data Encryption
There are two kinds of key encryption: private key and public key. In private key encryption a single key is used. Public key encryption uses two keys. One key, called the private key can only be used to decrypt a document. The other key, called the public key, can only encrypt a document. More ...
Difference Between Rule and Role Based Access Control
Access control is the method used to block or allow access to a network or network resources. Two types of access control are rule-based and role-based. The difference between rule-based and role-based access control is explained here. More ...
How to Become a Professional Ethical Hacker
As a Professional Ethical Hacker you need to understand the various kind of hacking, which can be classified into White Hat, Grey Hat and non-ethical hacking. Only a deep knowledge can help in combating any sort of breach or unauthorised access in the information system. More ...
Multi-Layered Approach to Cyber Security
A multi-layered approach can be tailored to different levels of security. Not every asset needs to be completely secure; instead, only the most business critical assets, such as proprietary and confidential information, need be protected by the most restricted settings. 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 ...
Types of Computer Security Threats
No book nor any checklist or method can show you all the kinds of harm that can happen to computer assets. There are too many ways to interfere with your use of these assets. Two information sources are of value however. The CVE list and the CVSS measurement system. More ...
Avoid Hacks by Rogue Wireless Devices
Watch out for hacking from unauthorized routers and wireless clients that are attached to your network. By using NetStumbler or your client manager software, you can test for access points (APs) and ad-hoc devices that don't belong on your network. More ...
