My suggestion is excluded , you can use dynamic dns for any type of ip or other method of notification for new ip.. if everything else not working.

This was caused by an open recursive DNS server that is installed by default on the image from OpenVZ. I plan to in the near future manually test and edit, if needed, each image to make sure this is n

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@Sady There's no reason to point fingers yet. By your logic, anyone with a DNS A record is welcoming an attack.

Launched it in the summer, everything has worked perfectly since. Yesterday, the station went off-air at 4:30 PM. I got a server-down alert at 5:17 PM. I checked on the replica server and some config

Yes, your authority DNS server will naturally return whatever you have set, if you query it directly. DNS servers in between your nameserver and the client will cache results though. Using cloudflare

Cloudflare would do. Or any external dns service. Cloudflare is free, reliable and if you don't like cdn features, you can just use their dns service. Any changes I do there, when I'm switching server

"_At this point we have all the VM's recreated. You may login to SolusVM and start reinstalling your VM's. The next goals will be bringing up the 2 in house DNS servers and the CA webserver

You must have a short TTL for it to be an effective change within minutes. Apparently not all DNS servers would honour such a small TTL.

That's correct: our free plan includes several other things such as customizable health checks, a set of different geo-routing algorithms and DNS firewall capabilities.

dns-nameservers 8.8.8.8 8.8.4.4

Part II -- monitoring & Cloudflare DNS changes.

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With reference to http://www.gslb.me we provide geolocation and HA/failover at the same time. Let us know at [email protected] if you need help setting up complex DNS resolution rules.

That's why I said it's a balancing act.... I think there's too many variables to be 100% certain: there's the browser's cache (different from browser to browser), the OS cache (also different) and the

Well. Depends. AS anycast dns increases speed. Plus its only a few kb

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When you're setting your TTL for DNS so low remember it will do a dns lookup each time as well, you're just slowing down things more this way I think...

the rbl style dns lookup would be good, no tcp overheads. but yeah just a simple JSON api would be wonderful for the rest of the world.