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Computer Network Security

What is a Password Hash and Salt?
Never store a user's password as plain-text. A Hashing algorithm is similar to encryption. To increase the security of a hashed password, a random value called salt is added to the hash. More ...

Difference Between Network Firewall and Web Application Firewall
A Network Firewall acts as a security barrier between a trusted network, such as the local network (LAN), and an untrusted network, such as the Internet. A >Web Application Firewall (WAF) monitors and allows or blocks data packets as they travel to and from a Web application. More ...

What Is Penetration Testing?
Penetration testing is one of the hottest up and coming skills any IT professional needs to have. Companies are actively looking for penetration testers and professionals with a background in IT security and the ability to do penetration testing. More ...

How Snort's Stealth TCP Port Scanning Works
Snort is an open source network intrusion detection system, capable of performing real-time traffic analysis and packet logging on IP networks. It can perform protocol analysis, content searching and matching, and can be used to detect a variety of attacks and probes. 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 ...

What is Cross Site Scripting?
Cross-site scripting attacks are used to steal information from your browser when you visit websites such as ecommerce stores, forums, and even your email accounts. More ...

The Role of Security Penetration Testers
An ethical hacker is a person who performs most of the same activities a hacker does but with the owner or company's permission. Ethical hackers are usually contracted to perform penetration tests or security tests. 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 ...

How to Protect Your Business From a Cyber Attack
Hackers can be crippling for small businesses who, many times, never recover from the theft. Here are some precautions you can take to help keep your business protected against hackers. More ...

Use of Taps and Span Ports in Cyber Intelligence Applications
SPAN stands for Switched Port Analyzer, a dedicated port on a switch that takes a mirrored copy of network traffic from within the switch and sends it to, typically, a monitoring device, or other tool for troubleshooting or traffic analysis. More ...

Methods to Combat Distributed Denial of Service (DDoS) Attacks
DDOS attacks are costly in terms of lost revenue and added costs. DDoS attack protection plays a fundamental role in keeping businesses online. Here are some strategies that can be used to protect against a DDoS attack. More ...

Understanding the Different Classes of Firewalls
A firewall is able to achieve its functions through the capabilities it is able to provide. These are the capabilities determine the type of firewall to needed to meet a certain and specific set of security needs. More ...

How to Secure Your Small Business Network
Automated scanning techniques and botnets don't care whether your company is big or small, they're only looking for holes in your network security to exploit. Here are 10 of the most critical steps you can take to keep your data secure, and none of them take much time or effort to accomplish. More ...


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