It'd be really nice if the DNS manager could somehow integrate with the CloudFlare (https://www.cloudflare.com) service since it's free.

As it is, I have to duplicate my DNS records both at Linode and at CloudFlare, which is a little annoying.

Anyway, it's just a thought, but it would make managing DNS easier and pretty much increase the security of sites overall on the Linode infrastructure.

Now I'm not a current user of cloudflare, but I've been reading up on their service (I'm considering their services), so what I say might be misinformed.

From what I read, you basically set cloudflare to be your DNS provider. I don't think you need to alter your Linode records. The Linode DNS is a service provided that you don't have to use if you don't want to (some people might roll their own DNS server or use a third-party source). Put simply, I'm pretty certain you just need to modify your DNS records at cloudflare and that is all.

And then, even in the weird case that you have to, cloudflare has an api so you can make DNS changes remotely: http://www.cloudflare.com/wiki/Dynamic_DNS

Well one issue is that with Linode you can have multiple users controlling the same VPS; but with CloudFlare the domains are associated with a single account.

Integration would mean that the Linode users I grant access can also control the DNS settings, without having to come to me to get stuff changed.

Cloudflare is pretty amazing.... I was am testing it with a few sites.