Last weekend I had my DNSSEC keys expire. I discovered that they had expired the hard way... namely randomly websites could not be found and email did not get delivered. It seems that the keys were only valid for what I estimate was about 30 days. It is a real PITA to have update the keys, restart named and then update Godaddy with new digests.
The first part of the problem is fairly manageable in the sense I already have a script that partially can do the job of updating the DNS server. However from what I can tell the only way I can update the DNSSEC of my 8 domains is via the Godaddy control panel GUI. So a couple of questions.
1.) Is anyone aware of anyway to update Godaddy DNSSEC data via a Centos 7 bash shell? I will contact Godaddy but I suspect I am SOL but thought I would ask here thinking somebody else may have already run into this issue.
2.) Assuming the answer to DNSSEC is no, can I at least have the keys last longer than they do by default. I am presently creating the keys via:
dnssec-keygen -a NSEC3RSASHA1 -b 2048 -n ZONE zone
dnssec-keygen -f KSK -a NSEC3RSASHA1 -b 4096 -n ZONE zone
It is very unclear to me given the dnssec-keygen man page how to set the date so that I could get 90 days or even more per key. The descriptions I found about constructing rolling keys was even more cryptic to me. For example, how do you use these switches:
-A date/offset
Sets the date on which the key is to be activated. After that date, the key will be included in the zone and used to sign it. If not set, and if the -G option has not been used, the default is "now".
-D date/offset
Sets the date on which the key is to be deleted. After that date, the key will no longer be included in the zone. (It may remain in the key repository, however.)
-I date/offset
Sets the date on which the key is to be retired. After that date, the key will still be included in the zone, but it will not be used to sign it.
-P date/offset
Sets the date on which a key is to be published to the zone. After that date, the key will be included in the zone but will not be used to sign it. If not set, and if the -G option has not been used, the default is "now".
-R date/offset
Sets the date on which the key is to be revoked. After that date, the key will be flagged as revoked. It will be included in the zone and will be used to sign it.
Is it as simple as setting the -I and -R switches to something like +90d
At least if I can get the DNS server to update via a cron job even if the 1st item will always have to be done manually that would be help.
Thanks for your help.