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Tag Archives: dns

December, 2009

  • 30 December

    How to disable dynamic updates in BIND DNS

    BIND (also called NameD) is the DNS system for most Unix-like and Linux networked servers. It controls all of the DNS functionality on those servers and thus needs to be secure. Dynamic updates allow remote servers to add, delete, or modify zone entries in DNS records. While there may be …

  • 17 December

    DNS Benchmark

    There are a number of DNS services out there, including a new offering by Google. Considering all the options available, which one is best? As far as I’m concerned, it boils down to one thing: speed. DNS Benchmark is a piece of Windows freeware that will measure the speed of …

  • 4 December

    DNS service

    Google announced this week that it is now offering free public DNS. The service is designed is to replace the DNS servers set up by ISPs for their end users. In simplest terms, DNS converts domain names into resolvable IP addresses. Google claims its service is faster than anything provided …

November, 2009

  • 25 November

    ICANN shakes finger at DNS redirects

    It’s become common for DNS providers to redirect users to third-party pages upon entering an incorrect URL. Called NXDOMAIN substitution, many ISPs practice this to make money. ICANN is calling out against this practice, however, citing its harmful effects: If an email is accidentally sent to an incorrect domain and …

October, 2009

  • 26 October

    What is a subdomain?

    Question: What is a subdomain and why should I use one? Answer: A subdomain is simply a word used as a prefix before a domain name. For example, if the domain is domain.com, a subdomain could be sub.domain.com. Typically, a subdomain would serve as an alternative to domain.com/sub, although if …

  • 13 October

    Third-party DNS Services

    Typically, when you register your domain name, the system automatically points your domain to your registrar’s name servers. If the registrar will also act as your web host, you do not need to do anything else. Often times, however, users seek web hosting from companies other than their registrars. The …

  • 7 October

    What is Reverse DNS?

    Question: What is Reverse DNS? Answer: Reverse DNS is a method of determining the domain name associated with an IP address. It is the opposite of DNS, which finds the IP address associated with a domain name. According to Internet standards, every IP address should have a domain name, and …

  • 2 October

    Rod Beckstrom answers your questions

    ICANN has been criticized in the past for paying too little attention to end users. Now the agency’s CEO, Rod Beckstrom, has decided to give Joe the Plumber an ear and an eye by answering a few questions submitted by readers at Guardian.co.uk. Here is a summary of the questions …

September, 2009

  • 7 September

    Using DNS Records: A, CNAME, and MX

    Sometimes managing a domain involves more than simply pointing the nameserver entries to your new web host’s servers. You might also need custom DNS records. For example, if you use cloud services, such as Google’s e-mail and applications services, you will need to configure your DNS records. Three common record …

  • 3 September

    To forward, or not to forward?

    After you register a domain, the Internet has to have a way to find your site. Most of the time, your web host will give you a pair of DNS servers to give to your registrar. The DNS servers show the world where your site is, much like a driveway …