Firewall Rules
The purpose of a network firewall is to protect computer and IT resources from malicious sources while allowing internal network users to access the Internet. For this purpose it uses an Access Control List (ACL). More ...
What's the Difference Between Sniffing, Snooping, and Spoofing?
Network sniffing and snooping involve tapping into network traffic for the purpose extracting usernames, passwords, account numbers, and other information. Spoofing is when a hacker creates an email or a website that appears to genuine but is designed for the purpose extracting usernames, passwords, account numbers. 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 ...
How to Secure Your Wireless Network
If you use a wireless network, chances are good it is not secure. If you don't make some important configuration changes on your wireless router after installing it, your wireless network is wide open to hackers, curious neighbors and people who would rather use your broadband internet service instead of buying their own. More ...
Network Security Across the Enterprise
Today's business networks consist of numerous remote access connections from employees and outsourcing firms. Often, the security risks from connections outside the network are overlooked. The proper security solution for your organization will neutralize virtually all of these threats to your network. More ...
What Roles Do Firewalls and Proxy Servers Play in Network Security?
A firewall can detect specific application protocol content and filter out any applications that exhibits certain characteristics. A proxy server sits between hosts and server that filters requests by checking IP Addresses, Protocol and application content. 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 ...
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 ...
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 ...
Man in the Middle Attack
In a Man in the Middle (MIM) attack the hacker places eavesdropping equipment between the sending device and the receiving device. He intercepts the data, records it and possibly modifies it, then sends it on to the intended receiving device. More ...
The Use of HoneyPots and HoneyNets to Trick Hackers
A HoneyPot is a storage area on a network that has fake confidential and valuable data used to trick hackers. More ...
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 ...
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 ...
