ncvadf
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How do I change the TTL on our MX Record?
How do I change the TTL on our MX record? I go to dnsstuff.com and notice that the TTL was 86400 seconds. The reason I want to temporarily change the TTL is that we are moving to an outsourced spam filterign solution. I want the TTL to be reduced while we make the change, so the propagation will not take that long.
We do have our own DNS server. I never had to do this before, so I wanted to make sure I do it right.
We do have our own DNS server. I never had to do this before, so I wanted to make sure I do it right.
Geyybecca
is it windows DNS or bind on a Linux server?
if its windows open up DNS navegate down to the zone you wish to change the TTL for right click the zone name, select properties select SOA Start of Authority and change the TTL.
NOTE: this changes the TTL for all A records within your domain name not just your MX record
NOTE: this changes the TTL for all A records within your domain name not just your MX record
ASKER
Windows DNS.
So, I have to do this on the entire zone? Not just for the MX record?
So, I have to do this on the entire zone? Not just for the MX record?
The MX record is for the exchange name only, there is no TTL. The TTL is for the DNS records, to update i usually use 10 minutes, then change it back to 1 hour after appx 1 day.
yes you can only do this for whole zone
You *can* modify the TTL for the MX Record separately from the zone in MS DNS. It does not have to be set for the entire zone.
Chris
Didn't check before, but it's not immediately obvious that it can be done there which would explain any confusion.
The option for the TTL on a record is only available when you select View, Advanced in the DNS Console.
Chris
ASKER
Here's what I am confused about. On DNSSTUFF.com, our DNS record TTL's are listed as 86400 seconds. On our DNS server, it's 1 hour. Confused.
As DNSStuff checks with the Authoritative Server it should be pretty quick at seeing changes.
Can you check the value of the TTL for that specific record (with View, Advanced) on and see if it's actually set to the value you need?
If the record itself has a value that will override the zone default.
Chris
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