Re: Constraints on TTLs

Rob Butler <[email protected]>
Newsgroups gmane.network.dns.bind9.dlz
Message-ID <[email protected]>
The TTL of all records in a 'RRSET' (resource record set) must be the same.  A RRSET is all the records for the same host of the same type.

So, if your host has 2 MX records they must both have the same TTL.

Rob

----- Original Message ----
From: Chris Hastie <[email protected]>
To: [email protected]
Sent: Monday, May 5, 2008 1:02:57 PM
Subject: [Bind-dlz-testers] Constraints on TTLs

After making some changes to my DNS this afternoon one host started
being reported as NXDOMAIN, despite the fact that the records clearly
remained. Logs indicated

"dns_sdlz_putrr returned error. Error code was: bad ttl"

After staring for hours at the data and being unable to spot the problem
I removed all RRs for the host (there were four of them) and began
reinserting them.

The errors reappeared when I inserted an MX record with TTL of 86400.
Reducing this to 3600 solved the problem. The TTL of the target of the
MX record is 3600, as is the TTL of the host's other MX record. Is there
some constraint on the TTLs of MX records?

-- 
Chris Hastie

-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
Don't miss this year's exciting event. There's still time to save $100. 
Use priority code J8TL2D2. 
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
_______________________________________________
Bind-dlz-testers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bind-dlz-testers



      ____________________________________________________________________________________
Be a better friend, newshound, and 
know-it-all with Yahoo! Mobile.  Try it now.  http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
Don't miss this year's exciting event. There's still time to save $100. 
Use priority code J8TL2D2. 
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.