Ubuntu: Set OpenDNS DNS Server

How DNS Blocking Works

Cisco announces its intent to acquire OpenDNS
The chances are that they are not doing anything seriously nefarious. Wrapping it all up Once I had everything configured and apparently working, the final step was to reboot OPNSense and test again. And, on a Mac nslookup www. Cisco completed its acquisition of OpenDNS. It will tell us how well connected they are, where their datacenters are located and how close someone's experience in that area will be.

Frequently Asked Questions

CentOS: Use OpenDNS To Resolve Hostnames

How about protecting your family from adult content such as pornography, and mature themed websites such as gambling and alcohol? Blocking adult content is often referred to as a porn blocker. There are popular pay options, but these free options probably work just as well, with some caveats.

But OpenDNS also provides phishing protection, as well as content filtering. This service categorizes and blocks known threats — such as phishing sites, sites hosting malware, etc. How does it work? When you click on a link in your email or web browser the friendly name of the server has to be resolved to a numeric IP address. Once complete, navigate to this test site. It should be blocked: See here for instructions on how to do this for popular router models.

If you are interested in this option, use these DNS servers. If you sign up for an OpenDNS account, you can have very fine grain control over what is blocked and some stats tracking. The OpenDNS pages will walk you through setting up an account. This is optional, but will give you access to the Dashboard where you can setup stats tracking, manage the categories of filtering applied, and see a history of URLs accessed. This requires providing your external IP address, and ensuring it stays up to date most home IPs are dynamic — meaning they can change regularly and unexpectedly.

OpenDNS relies on having a list of known bad guys. Sites are categorized into broad groups. And as you may suspect, there are millions of websites on the Internet, with more being added every hour.

Also, these protections can be circumvented relatively easily. It screwed up a few corporate customers who had some applications break.

It seems like using an ad or search-engine supported DNS service isn't any different than using any other ad-supported service. The important thing is whether the DNS service is trustworthy and open about its business model and routing of requests. I occasionally hunt for DNS servers with low latency and use those. Of course there's always fastcache or other local caching apps to speed up common requests.

Substantial price increase coming? New iPhone Costs [ Apple ] by planet Can XP still be activated? USB powered wall hanger [ Electronics ] by tschmidt I need a chainsaw, your recommendation. DNS Anon Dec 4: Just Bob Premium Member Dec 5: Kerodo to Just Bob Member Dec 6: Just Bob Premium Member Dec 6: It's hard to believe any server could be faster than Kerodo Member Dec 6: Right, and TreeWalk preserves the cache over a reboot. The key issue is really the response time of the server when busy.

Edit - corrected ping times. Just Bob Premium Member Dec 7: Just curious, how is this a security risk? The articles you cite seem to indicate that Google and Dell are the one redirecting to a listing with a lot of ads. Is correcting typos a security risk. I am curious, what is the actual security risk that opendns introduces.

I recommended I assume that is what the poster is talking about Treewalk, opendns and other OOL servers. If there really is a security problem with opendns I wish someone would spell it out and in the future I will not recommend it. If they redirect you to a site other than what you requested, then yes that is a potential security risk. The chances are that they are not doing anything seriously nefarious. It is up to you to decide whether you trust them. My preference is to run my own DNS server.

Certainly, but correct me if I am wrong, they only correct where there is no DNS results for what you have typed and it is a common error in spelling. So while they of course could in a few cases misread where you wanted to go, I would guess they could be pretty accurate. I am not sure what you are referring to here, if you are talking about where there is an error in spelling for a site or the google situation or something else. I would be happy to discuss either.

TheWiseGuy December 16th, Americans can think of it as a Social Security number for their computer. When two computers talk to each other on the Internet, they address each other using this number, which us nerds call an IP address. You can see the IP address of the computer you're reading this blog posting with by visiting www.

Technically an IP address is a 32 bit b inary dig it binary number. For example, when going to www. For simplicity sake, an IP address is written in decimal rather than binary. To make it especially simple, clumps of eight bits are converted to decimal and the four clumps are separated by periods.

Thus, the standard way of representing the above IP address is As proof, enter this IP address in the address bar of your Web browser as shown above. You will end up at cnet. Just as people have both names and phone numbers, computers on the Internet have both names www. DNS resolution can be thought of as a telephone book. It is the process of converting the name of a computer to its IP address.

DNS Domain Name System is a huge distributed system that functions amazing well, especially considering the initial design predates the Internet as we now know it by many years. When your computer goes to www. The translation technically DNS resolution happens so quickly and transparently you are not aware of it. When you first connect to the Internet, you are assigned a pair of DNS servers.

Should one fail, your computer automatically tries to use the other one. Sample XP output from this command is shown below. OpenDNS provides excellent instructions for doing this.

Static IP Configuration

Leave a Reply

August — Cisco completed its acquisition of OpenDNS. You can learn more about this exciting announcement on this page. Please find an FAQ below, and links to Cisco’s press release, a letter from our CEO, and other important resources. Our geographically distributed data centers enforce security policies for business users; parental controls for home users; and provide the fastest, most reliable DNS resolution for 65 million active users in over countries daily.. Learn more about the OpenDNS Global Network →. DNS internet Tercepat: OPEN DNS: GOOGLE DNS: SPEEDY DNS: