[Dnsmasq-discuss] dnsmasq used in AWS

[wakelt at comcast.net]

Hi Simon; 

Thanks for the response below. I have a following question for 2. 

1: I am thinking about how best to utilize dnsmasq in an amazon cloud deployment. 
I don't think I can circumvent Amazons DHCP system. Any idea how I'd mate the aws 
DHCP system to the dnsmasq dns solution ?? Perhaps this has come up before. 

thanks, 
Walter 


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Message: 1 
Date: Thu, 7 Jan 2016 20:55:55 +0000 
From: Simon Kelley <simon at thekelleys.org.uk> 
To: dnsmasq-discuss at lists.thekelleys.org.uk 
Subject: Re: [Dnsmasq-discuss] DHCP using DNS...can I do the following 
? 
Message-ID: <568ED0DB.4040502 at thekelleys.org.uk> 
Content-Type: text/plain; charset=windows-1252 

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It do can exactly that. 

The configuration goes in dhcp-host statements 

dhcp-host=mickey,192.168.0.10 

ensures that when a DHCP request turns up from a macine idetifying 
itself as "mickey", it gets given address 102.168.0.10 and 

"mickey" 192.168.0.10 

gets added to the DNS. 


Cheers, 

Simon. 

On 07/01/16 15:31, wakelt at comcast.net wrote: 
> 
> 
> I am building a system containing many virtual machines. Each 
> virtual machine will have a unique hostname, and the hostname 
> 
> will be included in the domain name. The system will live on its 
> own subnet. The system could change over time (more machines 
> 
> added to system) 
> 
> 
> 
> I need to replicate this system in many different locations and am 
> looking for a way to simplify the management of IP addresses 
> 
> within the subnet, and create a similar look and feel across all 
> the installations. 
> 
> 
> 
> I?ve heard very nice things about dnsmasq?thus am considering it. 
> 
> 
> 
> I am wondering if the dnsmasq DHCP server functionality interacts 
> with the dnsmasq DNS functionality so that IP addresses can 
> 
> be based on Hostname contained in the DHCP parameter instead of MAC 
> addresses (I don?t have control over mac addresses, nor do I want 
> to). Basically when a dhcp request from a host hits the dhcp 
> server, the server checks with dnsmasq dns first to see if that 
> hostname is contained in file containing the 
> 
> 
> 
> address=/myhost/<ipaddress> 
> 
> 
> 
> information. If so, it responds with the ip address specified in 
> DNS. If not, it provides a new ip address. 
> 
> 
> 
> Basically, I want to control dns resolution and ip assignment in a 
> single place (at the dns/dhcp server) as opposed 
> 
> to having N number of machines with /etc/host files. 
> 
> 
> 
> Thanks in advance, Walter 
> 


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