#internal-dns

Answer: Querying DNS for CNAMEs for a server #fix #solution #computers

Querying DNS for CNAMEs for a server

Is there a way to query our internal DNS entries to discover all the CNAME entries that point to a particular server?

Edit: We’re a Windows environment, Server 2003.

Answer [by kce]: Querying DNS for CNAMEs for a server

You didn’t specify what your environment is but if you’re using Unix I think a combination of dig and grep should work. ns.example.comshould…

Solution: Choosing between meaningful and meaningless hostnames #answer #it #development

Choosing between meaningful and meaningless hostnames

Assume an environment with a puppet-managed cluster of different servers – various hardware, software, operating systems, virtual/dedicated, etc.

Would you choose meaningful hostnames (mysqlmaster01..99, mysqlslave001..999, vpnprimary, vpnbackup, etc.) or would you prefer meaningless hostnames such as characters from a book or movie?

The…

Resolved: Resolving host names to their domain name in an internal BIND domain #it #programming #answer

Resolving host names to their domain name in an internal BIND domain

I’m setting up a domain on my home network for learning purposes, using BIND on CentOS to act as the name server. I’ve got the name server up and running as type master for my internal domain (plumbnicoll.family), and can do forward and reverse lookups from other computers in my LAN. For example, host office2.plumbnicoll.family

How to: What is the point of the zones.rfc1918 file for Bind9? #development #programming #answer

What is the point of the zones.rfc1918 file for Bind9?

Using an Ubuntu 10.04 LTS server in a standalone environment and trying to use views to serve two different subnets of clients. Getting errors regarding the zones.rfc1918 file, so I’d like to know what that file is used for. What’s the point of hosting the rfc1918 addresses?

The subnets I’m using are rfc 1918 addresses, btw. Will including…

Answer: Two Different Domains & Domain Controllers on Single Network #it #solution #fix

Two Different Domains & Domain Controllers on Single Network

I’m attempting to determine whether it is possible to have two Active Directory domain controllers running on the same network, within the same subnet, with two separate domains. I do not want these two domain controllers to be linked in anyway (accounts, etc), except by the switch I have connecting them.

My current concern is in…

Fixed: Using .local for internal websites #computers #solution #answer

Using .local for internal websites

Is it okay to use app.mycoolname.local for URLs that are private / internal?

We have several applications that are web based, but they are private apps and are not exposed to the public.

We have been using “.net” for some of these, which doesn’t make sense since they could collied with a real URL on the internet. That hasn’t been a problem yet.

But now I have a…

Resolved: Top level domain for private networks? #it #answer #programming

Top level domain for private networks?

On our office network we have an internal DNS and all the hostnames are whatever.lan. On my VMware VMs, on their host-only network I call them whatever.vm.

We now have a private IP space network in production for VMs to talk to each other and were thinking we’d want to extend the convention, but we can’t come up with a good name. Any suggestions? (Given…

Fixed: List all DNS records in a domain using dig? #development #answer #dev

List all DNS records in a domain using dig?

My company runs an internal DNS for “mycompany.com”

There is a machine on the network that I need to find, but I’ve forgotten it’s name. If I could see a list, it would probably jog my memory.

How can I list all of the domain records for “mycompany.com”?

Answer [by Josh]: List all DNS records in a domain using dig?

Try:

dig -tAXFR mycompany.com

This…