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May 04

Protecting Your Home Network or Business Network

I have tried to identify the top defenses for the internet today. This is by no means an exhaustive list, and it’s not a complete list by any means, but it is a rough assessment of the top technologies currently protecting your home network or business network. I am aware that there are plenty of other solutions that can do this, but I’ve thought of most of these as being highly suitable for a small, relatively inexpensive computer
DNS Caching
T he first defense for the internet is a tactic I refer to as “domain name resolution.” DNS (Domain Name System) is a series of instructions as to which computer in a network is able to resolve the name of a domain, and which computer in the network can retrieve that information. DNS is a highly cost-effective way to provide security, because it cuts out the need to attempt to run and complete dynamic updates on every computer on the network. If your computer’s system is properly configured, it will then see only names of name servers that it knows. These name servers can be provisioned, as are the basic hardware or software components required to query the name servers and obtain this information, all using the DNS functions of your router.
You should also consider firewall or network security software like OpenDNS or you can simply configure your own DNS server or client computer to perform this function (visit Fortinet for more information). It is a much more reliable method than attempting to run and update dynamic updates on every computer on your network. OpenDNS works out-of-the-box for any given device, whereas dynamic updates require you to run the setup files on every computer in your network.

According to the latest research, you can make your router appear as the authoritative name server on the internet by configuring it to do so. Once you’re finished installing the OpenDNS software, you will need to register the domain names in your DNS server so that other computers on your network can get a list of the domain names available to them in your router’s list of registered domains. Make sure you ensure the DNS settings are set up properly, and that you are able to access the DNS servers that your router is set up to use (using the router’s Web interface, or using a command line), so that if anything happens that causes your computer to register a new domain name, it can get the right list of the available domain names.

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