OpenDNS provides an extra layer of safety to Internet browsing in addition to anti-virus software and firewalls. It keeps bad websites out with filtering and customized settings you control. The biggest draw to OpenDNS besides the extra security, is the price. OpenDNS is absolutely free! There is no software to download or install and setup takes about ten minutes if you have access to your home router or computer's TCP/IP settings.
OpenDNS replaces the DNS server of your current Internet Service Provider (ISP). According to the creators of OpenDNS, "industry-leading anti-phishing protects everyone on your network from fraudulent phishing scams, web content filtering to block up to 50 categories of content and detailed statistics to understand your network traffic and spot trends before they become problems." (http://www.opendns.com/solutions/overview) That's a lot of features for a free security product which claims it can do a better job of DNS resolution than your current ISP. To appreciate the benefits of OpenDNS, you must understand what DNS is.
DNS stands for Domain Name System. DNS provides an IP address for the domain name entered into a web browser. Every website you visit has a DNS server assigned to it. So when you hit enter after typing the name of your favorite website, your computer sends a request to find info about that domain name. The DNS server from your ISP will process the request and return the information back to your computer. Your computer will store this information then send it to your browser. Your browser will read the IP address and open a connection to display the website. All this usually happens in just a few seconds.
If you would like to get started with OpenDNS, check out the link below.
OpenDNS