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Both hardware and software firewalls perform the same function of computer protection but the good thing is that you can have both of them. Firewalls come in different types but the selection will depend on an individual's needs. The bottom line is that the firewall you choose should be able to give maximum protection for your computer. Most firewalls installed into the computer update themselves from time to time which gives it an upper hand in being able to detect malicious programs. You can always find free firewalls in the market anytime or the ones for trial versions. If you have never used them before, you may have difficulties choosing one. If you can find the one on free trial, you can see how it performs before you purchase it. Otherwise you can ask your friends if they have an idea of which could be the best firewall for your computer or find expert advice from professionals. In a network environment, server firewalls come in handy. The server is a likely target because of the nature of its functions. With firewalls in place, you can detect anything suspicious before damage is done, otherwise your server may break down and once the server is down, the client computers may not perform too. After installing your software firewall, you can change the settings to suit you. Depending on the firewall you have chosen you can set your firewall to prevent certain content from being sent to the internet or downloaded from the internet. In essence, firewalls are meant to keep your private information stored in the computer secure. Spending some little money for your computer protection is worthwhile in the long run.