Computers should use firewall protection that checks information coming from the Internet or other computers. The hardware or software firewall blocks or allows the communication according to firewall settings.
By enabling the firewall, malicious software and hackers can be prevented from gaining access to your computer or sending malware to other computers. Most operating systems have a built-in firewall program and this should enabled by default. A more robust method to protecting the network and PCs is to use a third-party firewall application that includes Intrusion Prevention system.
You will find in this guide several tips and tutorial articles in using firewalls, in addition to firewall protection software reviews and comparisons.
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