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Computer Network Security

Prevent Hacking with Password-Cracking Countermeasures
Taking some general countermeasures can prevent hacking of your important passwords. Many people use the same passwords on every system they use. For this reason, you might instructg users to create different passwords especially on the systems that protect information that's more sensitive. 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 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 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 ...

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 ...

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 a Firewall Provides Network Security
A firewall provides security by controlling access between a network and an untrusted network. A firewall can be a hardware device, software, or combination of hardware and software. More ...

How to Tell if Someone is Lurking on Your Wireless Network
Have you ever wondered if someone else is on your wireless network, with out your knowledge, watching every site you visit or stealing account information? More ...

Elementary Information Security
This book is certified to comply fully with the NSTISSI 4011 federal training standard for information security professionals. The text emphasizes both the technical and non-technical aspects of information security and uses practical examples and real-world assessment tools. 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 ...

Are You Meeting ISO 27000 Standards for Information Security Management?
The ISO 27000 standard developed by The (IEC) and (ISO) is an internationally accepted industry standard for Information Security Management (ISM). 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 ...

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 ...


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