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Dec 21, 2010

FireWalls

INTRODUCTION.
Firewalls are computer security system that protects ur office/home PCs or ur Network from Intruders, Hackers and Other Malicious Code.Firewalls Protects u from offensive Softwares that may come to reside  on ur systems or from prying hackers.In a day and age when online security concearnsare the top priority of the computer users.Firewalls provide you with the necessary safety and protection.

What Exactly are Firewalls
Firewalls are software program or hardware devices that filter the traffic that flows into ur pc or Network through a internet connection.They sift through the data flow or block that which they deem(based on how and & and for what u have turned the firewall) harmful to ur Network or computer system.
When connected to the internet even a stand alone pc or a Network of interconnected computers make easy targets for malicious softwares or Evil Hackers.Firewall offer the security that make u less vulnerable and also protect ur date from being compromized.

How Do They Work.
Firewalls are setup at every connection to internet.therefore Subjecting All data Flow to carefull monitoring.Firewalls can also be turned to follow rules.These Rules are Simply Security Rules, that can be setup by ur self or by the Network Administrator to allow traffic to their webservers,Ftp servers,Telnet servers there by giving the computer owner/administrator immense control over the traffic that flows in & and out of their Networks.
Rules will decide who can connect to internet,what kind of connections can be made,which or what kind of files can be transmitted in out.Basically all traffic in & out can be watched and controlled thus giving the Firewall Installer a high level of security or protection.
Firewall Logic.
Firewalls uses 3 types of filter machanisms.
Packet filtering or packet purity.
data flow consists of packets or firewall information analyze these packets to sniff out offensive and unwanted  on what you have defined as unwanted packets.
Proxy.
Firewall in this case assume the role of recipient and in turn sends it to the node that has requested the information and vice versa.
Inspection.
In this case Firewalls instead o sifting through all of the information in the packets,mark key features in all outgoing requests & check for the same mathching characteristics in the inflow to decide if it relevant information that is coming through.
Types Of Firewalls.
1.Software:
New Generation Operating systems are come with Built in Firewalls or u can buy a Firewall software for the computer that access the internet or act as a gateway to ur home Network.
2.Hardware:
Hardware Firewalls are usually Router with built in Ethernet card and hub.Your computer or computers on your Network connect to this Router & access the web.


IMPORTANT FIREWALL PRODUCTS:
Some important Products that you can check out are:
1.Mcafee Internet Security
2.Microsoft Windows Firewall
3.Norton personal Firewall
4.Trend Micro Pc.cillin
5.Zone alarm Security suite
6.Comodo Internet Security

Dec 20, 2010

Linux Operating System

Every body who uses Windows Also curious abt learning Linux,
Linux is a very well developed operating system and it is more powerfull and secure system than windows.
Linux is more secure from viruses where as windows is more vulnerable to viruses,
Windows need a proper security Software(Antivirus) for its protection,
Where  linux does,nt require and antivirus software for its protection.There a many benefits of linux that can not be briefly describe in this Post
People who thinking that which distribution is best for use then no worry there are surely many distribution of linux  for use but the best free and recommended distribution for use is (Linux Fedora and Linux Ubuntu).These are the two best of best Linux distribution for use there links are
http://fedoraproject.org/
http://www.ubuntu.com/
Many new People,students and New Bies Who want to be a linux user and do not have any idea how to start then no worry Just visit this website that has given below and educate ur self with linux based operating system.There are three Totally free Courses available in this website,
So if anybody wanna become a Professional Linux User then I the Owner of this Blog Strongly Recommend u to do this free courses and become a linux professional user
Our aim to Introduce those who did not know abt linux and does not have any idea  
how to use it,who just using Ms-windows.
If you like this post then feel free to comment on it
The website for linux course is
http://www.linux.org/

Best Free Secruity Tools

http://www.avast.com/index
http://www.avg.com/ww-en/homepage
http://www.avira.com/
http://www.comodo.com/

The Comodo is the free internet security package for every one any one can enjoy free and powerful  security software for their pc and servers