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Computer Network Security

Understanding the Dangers Your Systems Face
It's one thing to know generally that your systems are under fire from hackers around the world and malicious users around the office; it's another to understand specific attacks against your systems. This section discusses some well-known attacks but is by no means a comprehensive listing. 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 ...

Cyber Security Tips for Small and Medium Business (SMB)
When it comes to small or medium enterprise the impact of security threat is even more severe. Cyber criminals love to target small business largely due to the fact that SMBs cannot afford to implement strong security protocols. More ...

How to Stop Hackers from Invading Your Network
Large corporations, banks, financial institutions, security establishments are particularly favorite targets for hackers. However, this menace can be prevented to a great extent if proper security measures are taken. 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 ...

Intrusion Detection System (IDS) and Intrusion Prevention System (IPS)
"Most organizations use both IDS and an IPS. The IPS automatically blocks attacks where it is accurate, while the IDS logs and notifies network administrators of suspicious activity so they can use their judgment as to what countermeasures to take. 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 ...

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 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 ...

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 ...

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 ...

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 ...

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 ...


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