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DNS Subdomains to different IPs (A vs CNAME records?)

Posted on November 6, 2013

Hello,

I’ve setup DNS to my droplet, with a wildcard CNAME, as explained in the tutorial ( https://www.digitalocean.com/community/articles/how-to-set-up-a-host-name-with-digitalocean ) and it works fine.

Now I’d like to connect a specific sub-domain to a different Droplet/IP.

Example:

current setup: server.com => 1.2.3.4 www.server.com => 1.2.3.4 xxx.server.com => 1.2.3.4 foobar.server.com => 1.2.3.4

What I’d like to add: work.server.com => 5.6.7.8

Based on simple google search, adding another “A” record pointing to “5.6.7.8” should “just work”, and take priority over the wildcard CNAME (which points “*” => “@” => 1.2.3.4).

However, this didn’t work, or I have not configured it correctly in the DigitalOcean’s DNS page.

My “zone file” has this (IPs changed for brevity):

$TTL 1800 @ IN SOA NS1.DIGITALOCEAN.COM. hostmaster.SERVER.org. ( 1383653276 ; last update: 2013-11-05 12:07:56 UTC 3600 ; refresh 900 ; retry 1209600 ; expire 1800 ; ttl ) IN NS NS1.DIGITALOCEAN.COM. NS NS2.DIGITALOCEAN.COM. NS NS3.DIGITALOCEAN.COM. @ IN A 1.2.3.4

  • CNAME @ work. IN A 5.6.7.8 ===

However, “ping work.server.com” still gives 1.2.3.4 instead of 5.6.7.8 .

What am I doing wrong?

Thanks!

  • G


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Thanks! <br>Worked perfectly.

Pay particular attention to formatting, either: <br><pre>work    A    5.6.7.8</pre> <br>or <br><pre>work.server.com.    A    5.6.7.8</pre> <br>should suffice. Notice the trialing dot in the second example. In the first example, DigitalOcean’s DNS Manager will automatically append <code>server.com.</code>.

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