[Cerowrt-devel] dynamic dns and ipv6 and "preferred lifetime"
mcr at sandelman.ca
Mon Oct 8 13:57:16 EDT 2018
Dave Taht <dave.taht at gmail.com> wrote:
> I have a machine whose ipv6 address I'd like to register in dns. I used
> to use the ddns tool in openwrt to do this, but I don't think it quite
> does what I want.
> the ip tool now has json capability, yea, but basically I have rotating
> addresses that expire.
You don't want to register temporary addresses, you want to turn them off.
Publishing your super-private address in DNS makes it not private, so don't
do that. You want stable private addresses.
You either do this in NetworkManager, or net.ipv6.conf.all.use_tempaddr = 0
> And other stuff that also expires but is mildly painful. I can do this
> to show the current primaries
> ip -c -6 addr show primary | grep -A 1 2603
> and the same, so I can delete secondaries
> So I can see having a nsupdate (or linode api) script that parses this
> all properly and sends it "up there", or roll my own, but I was hoping
> for a recommendation, that does it as addresses change...
] Never tell me the odds! | ipv6 mesh networks [
] Michael Richardson, Sandelman Software Works | network architect [
] mcr at sandelman.ca http://www.sandelman.ca/ | ruby on rails [
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