Does bind read /etc/hosts?

[Mark Andrews]

In message <BAY173-W26F0D751D9E56FFDA14B15BBF70 at phx.gbl>, houguanghua writes:
> Sorry for what I said isn't very clear. I did know when the /etc/hosts is 
> accessed in the OS.
> What I want to know is whether the named access the hosts file.

	And I gave you a clear, unequivicable "No".  Named does not
	read /etc/hosts.

	Mark

> The 
> /etc/hosts file isn't in the client's system, but in the system of Local 
> DNS server where the 'named' task runs. For example:
>       In the /etc/hosts file of Local DNS server(LDNS), one line exists 
> as follows:
>           10.10.10.1     www.google.com   
>      A client querys this LDNS to get the IP of 'www.google.com' (the 
> client may use dig,nslookup command. No host line is configured in 
> /etc/hosts of this client ), what IP will be returned to the client?  Can 
> the LDNS  return 10.10.10.1 defined in the /etc/hosts to the client?  
> maybe some special configuration in named can support this feature.
>  
> Thanks,
> Guanghua
>  
> > To: houguanghua at hotmail.com
> > CC: bind-users at isc.org
> > From: marka at isc.org
> > Subject: Re: Does bind read /etc/hosts?
> > Date: Tue, 15 Jul 2014 20:38:12 +1000
> > 
> > 
> > In message <BAY173-W11D824E324939A1BB89852BBF60 at phx.gbl>, houguanghua 
> writes:
> > > Dear sir/madam,
> > >  
> > > Before Bind consults authority NS, does it access /etc/hosts?  In my 
> > > testing,  it does not even seem to access /etc/hosts. But someone 
> tells 
> > > me Bind can access /etc/hosts first. Can you pls tell me how to 
> config 
> > > Bind to access /etc/hosts fist?
> > >  
> > > Thanks,
> > > Guanghua
> > 
> > No.
> > 
> > getaddrinfo, gethostbyname etc. however may access /etc/hosts, NIS,
> > mDNS, DNS and other databases.  You need to read the documentation
> > that comes with your system for how to control these.
> > 
> > Mark
> > -- 
> > Mark Andrews, ISC
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
>  		 	   		  

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org