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Malicious hackers cause mayhem and embarrassment by breaking into corporate network environment, which can cause significant impact to business operations. With the growth of mobile and remote systems as a component of networks, where desktops and remote devices exchange information directly, organizations need to lock down and secure their networks.
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A firewall is a hardware device or a software that secure access control at the gateway and desktops. The actual means by which this is accomplished varies widely, but in principle, the firewall can be thought of as a pair of mechanisms: one which exists to block traffic, and the other to permit traffic. Firewalls performing packet filtering, stateful packet filtering, having proxy services and NATing features help to secure your network environment at the gateway.
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Firewall at the desktop level inspects inbound and outbound traffic on your computers, and then allows or blocks connections based on policies for addresses, ports, protocols and applications. These policies can be set by a user or locked down by an administrator. Desktop Firewall protects desktops from attacks inside or outside the corporate network, and even stops malicious code attacks. Malicious code can silently invade desktops from any web site visit or by clicking an email attachment, and then attack others in the network at the later stage, causing serious network disruptions.
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