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: What is firewalls ? Explain types of firewall

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: What is firewalls ? Explain types of firewall.   Defn:           To protect private networks and individual machines from the dangers of the greater Internet, a firewall can be employed to filter incoming or outgoing traffic based on a predefined set of rules called firewall policies. OR   Acting as a barrier between a trusted network and other untrusted networks -- such as the Internet -- or less-trusted networks -- such as a retail merchant's network outside of a cardholder data environment -- a firewall controls access to the resources of a network through a positive control model. This means that the only traffic allowed onto the network defined in the firewall policy is; all other traffic is denied. ***   Types of Firewalls ***       *  Packet Filtering Firewall    : On the Internet, packet filtering is the process of passing or blocking packe...
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GUIDELINES FOR SOFTWARE INSTALLATION

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Installation of Operating System Get proper Licensed Operating System and read License agreement carefully before installing the OS. Switch on your personal computer and go to BIOS Settings and change your first boot drive to CD Drive. Insert your CD/DVD into the CD drive and restart your system using Ctrl+Alt+Delete. After restart, the system boots from the CD/DVD. Follow the installation steps as specified by the vendor document. Use the CD provided by the Vendor to install your Motherboard drivers Monitor drivers Audio & Video drivers Network drivers
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GUIDELINES FOR SECURING BROADBAND INTERNET ACCESS

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GUIDELINES FOR SECURING BROADBAND INTERNET ACCESS (DONT'S) Dont ’ s: Don ’ t enable the option for remote administration (via Internet), as it is not required for a home user. Don ’ t enable the option “ Restore Factory Default Setting ” in broadband modem. Don ’ t use connection without a filter for each broadband Internet line. Don ’ t tap the line before the splitter (a small dvice that separates phone line from data / PC port). Don ’ t use USB broadband modem with insecure computer/laptop. Do not Enable SSID Broadcast:In Wi-Fi networking, wireless access point or router typically broadcasts the network name (SSID) over the air at regular intervals.This feature was designed for businesses as well as to access public hotspots. For a home user this feature is unnecessary and can be an entry point to break into the network. Do not Enable  Auto-Connect to Open Wi-Fi Networks:In case if Auto-Connect setting is enabled, computer with Wi-Fi interface ca...
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