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Network Security

Network security is the practice of preventing and protecting against unauthorized intrusion into corporate networks. As a philosophy, it complements endpoint security, which focuses on individual devices; network security instead focuses on how those devices interact, and on the connective tissue between them.

Approaches of Network Security

Organisations can choose from several approaches to network security. A particular approach, or paradigm, will influence all subsequent security decisions and set the tone for the entire...

Denial of Service Attacks

The first type of attack to examine is the denial of service (DoS). A denial of service attack is any attack that aims to deny legitimate users...

All about Proxy Servers

What's a Proxy Server? An intermediary worker goes about as a door among you and the web. It's a mediator worker isolating end clients...

Introduction to Network Security

Computer data often travels from one computer to another, leaving the safety of its protected physical surroundings. Once the data is out of hand, people with bad intention could...

Windows Firewalls

Windows first started shipping a primitive firewall, called Internet Connection Firewall (ICF), with Windows 2000. It was very simple. Each version of Windows since then has expanded...

Security Terminology

Security professionals have specific terminology. Individuals or system administrators having experience in network administration are probably already familiar with most of these terms. Although most hacking terminology...

Modern Encryption Methods

Modern methods of encryption are more secure than the historical methods discussed in the previous section. All the methods discussed in this section are in use today...

Basic Network Utilities

Ipconfig The first thing you want to do is get information about your own system. To accomplish this, you must get a command prompt....

Law and Network Security

An increasing number of legal issues affect how administrators approach network security. If your organisation is a publicly traded company, a government agency, or does business with...

Session Hijacking

Another form of attack is session hacking or hijacking. TCP session hijacking is a process where a hacker takes over a TCP session between two machines. Because...
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