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Tag Archives: dns

March, 2010

  • 4 March

    Why do domain registrars require two name servers?

    Question: Why do domain registrars require two name servers? Answer: The short answer to this question is that Internet standards require it according on RFC 1034, published by the Internet Engineering Task Force (IETF). But there is a good reason for it. The intent of the standard is to ensure …

February, 2010

  • 26 February

    Did Rolling Stone let its domain expire?

    Visitors to RollingStone.com were surprised a few days ago when instead of seeing the popular magazine’s website, they were greeted with a generic “coming soon” landing page. The website is now back up, for but some time people speculated that Rolling Stone forgot to renew its domain. What happened? Luckily …

  • 22 February

    What is CNAME?

    Question: What is CNAME? Answer: A CNAME or Canonical Name record is a type of record found in DNS that allows the user to specify an alias for a domain name. For example, you can create an alias of domain1.com with domain2.com. More typically, however, it is used to create …

  • 15 February

    DNS Evaluation with intoDNS

    Part of managing a server or even a single website is making sure the DNS is sound and in compliance with established networking and Internet standards. While you can evaluate each of your DNS entries manually, there are many services out there that make evaluation very easy. One such service …

  • 10 February

    How to setup Google Apps DNS records in cPanel

    apps dns records cpanel

    Google Apps is a cloud computing suite of services that includes web-based email, documents, and other services. Unlike standard Gmail, you can use it with your own domain (i.e. instead of yourname@gmail.com, you would have yourname@yourdomain.com). To setup your domain to use this service in cPanel, you need to edit …

January, 2010

  • 28 January

    Google proposes changes to DNS system

    Yesterday, Google proposed several changes it would like to see made to the DNS system. Chief among them is an adjustment to the protocol that would give authoritative DNS servers the ability to see your IP address. Currently, these name servers can only see the address of your ISP. The …

  • 27 January

    CENTR releases video explaining DNS

    Ever wanted to show a less-than-tech-savvy friend or family member how DNS works? CENTR, the Council of European Top Level Domain Registries, has released a new video detailing the inner-workings of the system. In case you didn’t know, DNS stands for Domain Name System. It is essentially responsible for converting …

  • 21 January

    How to setup a virtual host in Apache on a Mac OS X Server

    So far we have covered Linux, Windows, BSD, and Solaris. Another server operating system worth mentioning is Mac OS X Server. Although most tend to think of OS X as a desktop OS, there is a server version that has the same Unix-like structure and stability as other BSD distributions. …

  • 15 January

    .HT domain still operational after earthquake

    The 7.0-magnitude earthquake that hit Haiti earlier this week has killed 50,000 people and destroyed much of the capital. Currently, access to the nation is mainly limited to the few relief planes that can get in. Amid this tragedy there is at least some hope for Haiti, as its DNS …

  • 6 January

    What is DNSBL and should I care about it?

    Question: What is DNSBL and should I care about it? Answer: DNSBL stands for DNS Block List or Blacklist. Essentially, it is a published list of ipp addresses that are in some way connected to spam. Although the most common form of DNSBL is a list of actually servers and/or …