Posts Tagged ‘DNS’

How to Prevent Your ISP from Snooping on You

Thursday, March 30th, 2017

Given recent changes in US internet privacy policies, this article is particularly timely (even though it appears to have been written before the change in policy took place.)

Internet Service Providers may be able to sell your web history in the United States without you giving your consent. The new ruling passed the US Senate and the House of Representatives already, and the last thing standing in its way is the President of the United States.


Find Out if you are Affected by DNS Leaks

Tuesday, May 19th, 2015

If you’re like me and you’ve been using a DNS proxie to watch the UK version of Netflix from the US, you might find this article interesting.

Whenever you use anonymity or privacy solutions to protect your Internet traffic from being snooped on or to bypass censorship and location-based restrictions, you need to make sure data about your actual location in the world or underlying system does not leak. A basic recent example is WebRTC, a new technology that most modern browsers support. Websites and services may use WebRTC to find out about IP addresses of your computer when enabled even if you use a VPN service.


DNS Benchmark, Speed Test DNS Servers

Tuesday, October 18th, 2011

Keep in mind that this is freeware, but it still looks like a useful tool for website managers …

One of the areas that a lot of computer users do not bother to optimize is the domain name server (DNS) of their Internet connection. A mediocre DNS not only slows down the connection speed on websites and Internet servers in general, but can also be the cause for connection issues and even censorship.


DNS Data View – Display Domain DNS Records

Tuesday, June 14th, 2011

This seems like a useful alternative to nslookup, especially for those who are more comfortable with a graphic interface.

DNS Data View is a graphical user interface alternative to the nslookup tool that ships with the Windows operating system. It can be used to display DNS records for one or multiple domain names. The program uses the DNS server of the active Internet connection by default, with options to switch to another DNS server. Especially the latter can be very handy to check DNS propagation progress.


DNS Performance Test

Thursday, January 20th, 2011

If you think your DNS might be a bit slow, here’s a program that you can use to check it …

DNS speed and reliability made the news last year when Google introduced their own open DNS system that every Internet user could make use of. The topic has lost much of its forward momentum since then and has taken the backseat once again. DNS in layman terms is used to “look-up” IP addresses of domain names. for instance resolves to Most Internet users will probably agree that it is easier to remember domain names than IP addresses, and that’s the main purpose of the system.


Symantec Enters DNS Provider Market With Norton DNS

Thursday, June 3rd, 2010

I’m not sure if I really need this or not, but it does look like something that would be interesting to experiment with …

The domain name system is a naming system for computers and other devices connected to private computer networks or the Internet. One of its most important tasks is to translate domain names (e.g. into IP addresses that computer use for communication purposes.

Most Internet users use their Internet Service Provider as the DNS provider, often without their knowledge. This may not always be the optimal solution depending on the provider’s infrastructure, network speed and handling of domain names that cannot be resolved as well as a country’s censorship implementations.


DNS time-to-live settings for CNAME records

Monday, May 10th, 2010

CNAME sounds like something worth looking into …

The DNS CNAME is one of the most versatile tools in an IT administrator’s arsenal. One caveat to reaching the full potential of a CNAME is default TTL. IT pro Rick Vanover explains situations to lower the default TTL.
I’ve long thought that the DNS CNAME is one of the most underrated infrastructure technologies considering it has been available for a very long time. Simply put a DNS CNAME is an alias record that points a user-created fully qualified domain name (FQDN) to an existing FQDN. I did a post a few years ago how using the CNAME for a database’s ODBC connection is a great way to accommodate a server move without touching the application or server.


Networking checklist: Five of the most overlooked configuration items

Friday, May 7th, 2010

This article contains some helpful, often-overlooked tips for IT administrators …

No matter how much documentation is available, even the sharpest IT pros will forget something from time to time. In this blog post, IT pro Rick Vanover shares the things that he finds himself running into issues with frequently.


I don’t know about you, but I find myself forgetting the same things over and over, a case of déjà vu and amnesia at the same time: “I think I forgot this before!”  When it comes to networking configuration, small configuration errors happen most frequently. Here is a checklist of my most encountered networking configuration errors and what I am doing to reduce the chances of them happening again.