CentOS - Feb 2012 - How does a linux DHCP machine inform DNS of its name and obtained address

I am using a number of DHCP devices on a network. Working fine with 
CentOS  5 x86_64.
My question is now how do I tell the DNS (after I get my DHCP address) 
about my devices
name and IP address so that others can find me by my machine name?

I thought that was an automatic thing - but it appears not.

Thanks,

Jerry

Jerry Geis <geisj at pagestation.com> wrote:
>>
My question is now how do I tell the DNS (after I get my DHCP address)
about my devices name and IP address so that others can find me by my
machine name?
<<

I wrote this years ago, so it might need updating, but the basics should
still be the same.

http://www.lesbell.com.au/Home.nsf/web/Dynamic+DNS+Updates+with+TSIG+for+Security?OpenDocument

Best,

--- Les Bell
[http://www.lesbell.com.au]
Tel: +61 2 9451 1144

On Tuesday 31 January 2012 22:06:53 Jerry Geis wrote:
> I am using a number of DHCP devices on a network. Working fine with
> CentOS  5 x86_64.
> My question is now how do I tell the DNS (after I get my DHCP address)
> about my devices
> name and IP address so that others can find me by my machine name?
What you want is called "Dynamic DNS" (or DDNS for short), and it
needs to be
active on the DNS server, if it is to work. You cannot make that work only by 
configuring the client.
 
> I thought that was an automatic thing - but it appears not.
It is not automatic by default because in principle it can represent a 
security vulnerability, if not used properly.

HTH, :-)
Marko