Comments on: What you should know about DNS

By: typing jobs at home

typing jobs at home — Fri, 12 Feb 2010 13:34:22 +0000

People also make sure to help warn others about a scam they have run across.

By: Enid Glaza

Enid Glaza — Wed, 03 Feb 2010 20:24:29 +0000

Hi there, nice site with good info. I really like coming back here often. There’s only one thing that annoys me and that is the misfunctioning of comment posting. I usually get to 500 error page, and have to do the post twice.

By: Show My IP

Show My IP — Sun, 10 Jan 2010 17:07:40 +0000

This update was pretty interesting, how often do you update your blog? I’ve bookmarked this site and gave you guys a tweet, hope to read more soon!

By: Read This Link » What you should know about DNS

Read This Link » What you should know about DNS — Sun, 10 Jan 2010 03:50:05 +0000

[...] What you should know about DNS [...]

By: Виталий

Виталий — Sat, 31 Oct 2009 12:32:59 +0000

Вопрос к автору , а вот у вас время у каждой статьи и в комментариях пишется… Это какое? Московское? Заранее спасибочки за ответ.

By: Chris Lea

Chris Lea — Thu, 25 Jun 2009 15:48:26 +0000

Hey Leah -

Well, I don’t work at Google, but I’m really fairly sure that if they won’t let you map a root domain to your app, that’s something Google imposes themselves. It’s not a restriction imposed by DNS.

By: Leah Culver

Leah Culver — Thu, 25 Jun 2009 02:23:21 +0000

Great article! I don’t know much about DNS (I usually just follow other’s instructions) so your explanation was perfect.

As for Robert’s comment about the root record – I know that Google App Engine won’t let you map a root domain to your app. Could that just be the software they’re using? It seems super odd and gave me the (probably) wrong impression too.

http://code.google.com/appengine/kb/general.html#naked_domain

By: Ryan Carson

Ryan Carson — Wed, 24 Jun 2009 19:29:33 +0000

Hey Chris,

Would you be interested in adapting this for ThinkVitamin?

Best,
Ryan

By: laura

laura — Wed, 24 Jun 2009 18:14:13 +0000

Hi Chris,

This is a great post, and one I’ll use as reference for training my team here. DNS training can be tough to introduce, but you explain it clearly.

It is surprising the number of staff at hosting companies who seem completely unfamiliar with CNAMEs as well.

Cheers,
Laura

By: Chris Lea

Chris Lea — Wed, 24 Jun 2009 17:47:01 +0000

@Robert, I actually don’t believe that’s necessarily true, though I think BIND may require such things. A point I didn’t get into is that CNAMEs really aren’t properly specified in the RFC, so different software can (and does) handle them differently. But just as a proof of concept, my friend Mark Trammell has his personal domain pointed to Virb. Here’s the DNS info for his domain:

chl@chris-leas-macbook-pro-15:~$ host marktrammell.com marktrammell.com is an alias for virb.com. virb.com has address 64.207.128.132 virb.com mail is handled by 10 mail.virb.com.

Now, it’s possible I’m wrong here. CNAMEs are something that I generally set up when I need them, check once to make sure it’s working how I think it should, and then stop thinking about. But if I’m reading this right you can CNAME just foo.com by itself to another domain. Thanks for bringing this up though!