2006-06-12 02:51:52 · 7 answers · asked by Madhavan k 1 in Computers & Internet ➔ Security
A firewall is a piece of hardware and/or software which functions in a networked environment to prevent some communications forbidden by the security policy. It is like a Border Protection Device.
A firewall has the basic task of controlling traffic between different zones of trust. Typical zones of trust include the Internet (a zone with no trust) and an internal network (a zone with high trust).
The ultimate goal is to provide controlled connectivity between zones of differing trust levels through the enforcement of a security policy and connectivity model based on the least privilege principle.
2006-06-12 07:17:16 · answer #1 · answered by sifar 2 · 0⤊ 0⤋
Basically, a firewall, working closely with a router program, examines each network packet to determine whether to forward it toward its destination. A firewall also includes or works with a proxy server that makes network requests on behalf of workstation users. A firewall is often installed in a specially designated computer separate from the rest of the network so that no incoming request can get directly at private network resources.
2006-06-12 10:54:24 · answer #2 · answered by Harry 2 · 0⤊ 0⤋
firewall is a sofware where u can restrict other users to intrude into ur system Especialy when u use lan or wan..
it monitors all the incoming ang outgoing packets
2006-06-12 10:04:36 · answer #3 · answered by uma s 2 · 0⤊ 0⤋
In easy to understand words....
If your PC is your House, the a Firewall is your Locked Front Door...
You only open it up when you want too....keeps the bad guys from getting in...
2006-06-12 09:57:12 · answer #4 · answered by MUff1N 6 · 0⤊ 0⤋
a firewall keeps intruders from accessing or hacking into your computer. it also helps to keep viruses out. but it can also prevent you from downloading software if your settings aren't correct! check out www.tech1repair.com
2006-06-12 09:55:04 · answer #5 · answered by Ronin 2 · 0⤊ 0⤋
It is a piece of software or hardware that controls all the network traffic through your computer's ports.
2006-06-12 09:55:08 · answer #6 · answered by master_akhkharu 3 · 0⤊ 0⤋
a firwall is hardware or software,which stops unautorised access to ur terminal,it comes in windows xp also.go to control panel,u'll find it...but firwall slowdowns ur computer speed...it also doesn't let u log in to the sites which r unsecured...
2006-06-15 08:23:35 · answer #7 · answered by Anonymous · 0⤊ 0⤋