Security Articles

Understanding ASA5520 Cisco ASA5520 series in a single platform to provide a variety of market, a powerful combination of proven technology, which from an operational point of view and economic point of view, can be deployed to more locations and comprehensive security services. It is a multi-functional ...

What is Spyware ? A spyware is a malware that monitors the activities on the computer which are illegally installed in computer without the user's knowledge. The information is sent back to its creator. Examples , Collection or passwords and credit card numbers. Some spyware programs are designed to monitor the user's ...

10 tips to protect the security of an organisation Even in the economic development of the best of times, computers also need to update the rotation, and we also need to decide how to deal with them reasonably. In the era of economic crisis, people have laid ...

Demilitarized Zone (DMZ) In computer networks, a DMZ or Demilitarized Zone is a physical or logical subnetwork that contains an organization's external services, largely to untrusted network, such as Internet.  It prevents outside users from getting direct access to a server that has company data. In other words "demilitarised ...

Port Security The Port security feature restricts the number of MAC addresses used on a switch or restricts the use of a port to a specific group of users.  The number of devices on a secured port can range from one to 132.  The MAC addresses are assigned either ...

Which VPN Solution should we choose ?  Before choosing correct VPN solution for our network, we need to ask below question to us. What do I need to protect? What kind of protection is required? How much protection is needed? First need to determine what is to ...

Categories in VPN or Virtual Private Network There are three basic VPN categories that describe where a VPN is used Intranet Extranet Internet Intranet  -  A VPN connection between same companies.  Transport mode connections within a company's infrastructure, such as VPN between two devices (a router sending traffic to a sys log server, a PIX appliance ...

CHAT & INSTANT MESSENGING programs allow users on the Internet to communicate with each other by typing in real time. They are sometimes included as a feature of a Web site, where users can log into the "chat room" to exchange comments and information about the topics addressed on the ...

Why PC Crash Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications." You have just been struck by ...

Advantages Reduce cost implementation (We don’t need to use lease line/ ISDN/ FR, mobile only need to dial local ISP to connect to branch office) Security (VPN provide strong security mechanism through encryption, authentication etc) Lower cost (Bring down cost of Wan equipment) More Flexible Simple Management Tunnel topology Interoperability of devices from multiple vendors Centralized VPN management Easy ...