How well is your personal computer secure from the cyberspace and other computers on your localized network? Almost all of you may be having an anti-virus solution installed that you update regularly but most of the times even this guard runs out to fulfill the security. This is because an anti-virus observes an unusual file (an infected file or executable) on the PC only after it has got its way into the system folder or lodged its way into the Temporary Internet Files folder (that’s good enough to set off all the alerts).Advance user generally recognize what to search out for and how to prevent uninvited attacks upon their Personal computer either with the good software package or with bright browsing habits.
If you plan to host a internet site, play games on internet, link up to a local network then you should protect yourself against invasions prior to their try for get into your computer. This is the function of a firewall to monitor and alarm you of data coming in as well as departing the personal computer (called as incoming and outgoing). Even if you do not mean to do anything other than browsing the Net, checking mail and chatting, you must have some sort of defense against other computers trying to access your machine without your knowledge. Other than rogue machines or zombies (infected PC directing infection) getting at your machine’s ‘open ports’, there could be programs that associate to the Net to transmit information. Did you know even MS Word tries to connect online? A firewall will alarm you of any such action. Particular computer program* that periodically access the cyberspace can be controlled in more than one manner (it will become clearer as we carry on through the tutorial). Options available inside the firewall allow it to work alongside the anti-virus set uped on the system too. Occasionally even email security is merged into the software. A firewall also has the power to ‘hide’ the IP address of the system it is installed on, making it invisible to external (infected) computers or hackers.
There are some precautions you must take before installing a firewall. Even though they keep our PCs safe, some users might face problems when the application itself crashes or certain files get corrupted. Problems might arise from too many settings blocking the Internet traffic altogether. So the best thing to do is to create a System Restore point before an install and after you have configured the software firewall correctly (i.e. you have confirmed access to your network and the Internet). If there ever is a problem you will be able to revert back to earlier settings without giving yourself a headache.
This tutorial throws some light on the options available across three different software firewalls ZoneLabs - ZoneAlarm , Norton Personal Firewall and McAfee’s Personal Firewall Plus . ZoneAlarm is free and is ideal for a standalone PC or for a small home network. For larger networks or greater configurability, there are other versions of ZoneAlarm available (other than Norton and McAfee). If you’re always on the move then a software firewall should be installed since you will need to connect to different networks. Norton provides a simple “Location” feature that allows you to switch access restrictions based on your location (just like a profile). With the help of these …….. Continue Reading…