Update All Sites DNS TTL

wenani

Hi guys,

I have been migrating sites from one server to another, but since the old server can't proxy requests to the new server, I have been manually updating the DNS TTL to 1 minute, then do migration after 24hrs. This approach causes a downtime of like 1 minute for DNS to update, which is okay.

But, is there a way I can update all the domains TTL at once? It is time consuming to impersonate each user website before and after migration to update the DNS TTL manually.

Thanks in advance!

cPFence

wenani

The DNS files are stored in /var/local/enhance/dnscd/dns/data in .json format. Maybe you can bulk edit the TTL for all domains with a script like this:

for zone_file in "$ZONE_DIR"/*.zone.json; do sed -i.bak -E 's/"kind":"(A|AAAA|MX|CNAME|NS|TXT)","name":"[^"]+","value":"[^"]+","ttl":[0-9]+/"kind":"\1","name":"\2","value":"\3","ttl":60/g' "$zone_file"

I haven’t tested this personally and I'm not sure how the DNS updates work, but I know these files get updated when using the UI, so this approach may work. 100% you need to check with Adam first to confirm which files need to be updated. This method could be a great time-saver for migrations like yours.

Let us know how it goes, it might be useful for many of us.

XN-Matt

No, not at the moment.