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Old 07-14-2009, 02:21 PM   #1
adm1329
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linking DNS from multiple servers


I have a wide area network with 7 CentOS servers running Bind and 1 Windows 2003 server. All 8 of these servers handle DHCP and DNS at their respective locations. At each site I can ping computer.site.company I'd like to be able to resolve the dns names from site to site. So from site1 I would like to be able to ping computer.site2.company and get a response.
 
Old 07-14-2009, 03:26 PM   #2
bhaslinux
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Can't you give the DNS addresses of all the DNS machines in all the DHCP servers ?
this way, after fall-back one of the DNS servers must be able to reply ?

soemthing like

domainname XXX
search YYY
nameserver <name server 1>
nameserver <name server 2>
...
nameserver <name server 8>
 
Old 07-17-2009, 06:54 AM   #3
adm1329
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That's how I thought it should work. In /etc/resolv.conf I've got

nameserver 127.0.0.1
nameserver 10.6.200.1

The strange thing is when at site1 I do a host ip for a computer at site2 I get the reverse, but when I do host computer.site2.company I get Host computer.site2.company not found: 3(NXDOMAIN)

Last edited by adm1329; 07-17-2009 at 07:00 AM.
 
Old 07-17-2009, 09:44 AM   #4
r0b0
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Maybe the DNS server in each location is configured to only allow queries from their own location?
 
Old 07-20-2009, 07:19 AM   #5
adm1329
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I don't have anything limiting where the dns servers can be accessed from, and if that was the case the reverse shouldn't work either should it?
 
  


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