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Old 01-19-2007, 10:24 PM   #1
anbumanikandan
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Registered: Jan 2007
Posts: 3

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URGENT: reverse zone problem in dns


hai to every one i am new to this forum.please clarify my doubts.

i am using RHEL4.0.i am configure dns.

ln /etc/named.conf i have to zones.its possible to gave two reverse zone.if its possible how can i configure.

my script is: in /etc/named.conf

zone "kite.com" IN {
type master;
file "kite.com.forw";
allow-update{none;};
};

zone "sky.com" IN {
type master;
file "sky.com.forw";
allow-update{none;};
};

zone "0.168.192.in-addr.arpa" IN {
type master;
file "kite.com.rev";
allow-update{none;};
};

Note: above reverse zone record is for kite.com zone.then what about for sky.com.

if its possible to one more reverse zone record for sky.com

please help me

thanks
 
Old 01-21-2007, 07:37 PM   #2
MensaWater
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Registered: May 2005
Location: Atlanta Georgia USA
Distribution: Redhat (RHEL), CentOS, Fedora, Debian, FreeBSD, HP-UX, Solaris, SCO
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You can have multiple reverse zones as you can have multiple forward lookup zones. At my job we have 4 different reverse zones describing 4 different IP ranges. Remember the reverse zone is to describe the IP range rather than the domain name. So if you have items in your sky.com zone that are pointing to IPs in two different ranges you can have two different reverse zones to describe each of those. Just remember that each of those reverse zones should only include the sky.com servers that are in their specific IP ranges.

Also note that DNS registration and delegation only covers your forward lookups typically. So even if your DNS registrar already has all your DNS server information you'll have to go to your ISP or Internet Carrier and tell them to also delegate the IP ranges they've assigned you to your DNS server. Otherwise lookups will stop at the IPS or Internet Carrier and return no record. For example at my company we have Network Solutions as the DNS registrar but have AT&T as our Internet Carrier. Your forward lookups will work fine even if you don't get the reverse delegation but reverse lookups won't work. Typically it takes 24 hours or more for a provider to update their records and have it propagate out.

Last edited by MensaWater; 01-22-2007 at 09:51 AM.
 
Old 01-22-2007, 12:06 PM   #3
anbumanikandan
LQ Newbie
 
Registered: Jan 2007
Posts: 3

Original Poster
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hai jlightner

thanks a lot.still i have more doubts.will u please send me some example for dns configuration file with multi forward and reverse zone record file.its more help to me.kindly share u thought with me.

thanks

bye

anbumanikandan
 
  


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