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posted by NCommander on Tuesday April 01 2014, @12:00PM   Printer-friendly
from the there-was-much-rejoicing dept.
As part of wanting to be part of a brighter and sunny future, we've decided to disconnect IPv4 on our backend, and go single-stack IPv6. Right now, reading to this post, you're connected to our database through shiny 128-bit IP addressing that is working hard to process your posts. For those of you still in the past, we'll continue to publish A records which will allow a fleeting glimpse of a future without NAT.Believe it or not, we're actually serious on this one.

Linode IPv6 graph

We're not publishing AAAA records on production just yet as Slash has a few minor glitches when it gets an IPv6 address (they don't turn into IPIDs correctly), though we are publishing an AAAA record on dev. With one exception, all of our services communicate with each other on IPv6.

Perhaps I will write an article about our backend and the magical things that happen there :-).
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  • (Score: 2) by NCommander on Tuesday April 01 2014, @02:42PM

    by NCommander (2) Subscriber Badge <> on Tuesday April 01 2014, @02:42PM (#24204) Homepage Journal

    I'll take your word for it. We're still undecided on the filesystem issue, but it looks like IPv6 support still hasn't landed in OAFS, and I rather not reintroduce IPv4 back into our BIND instance. We're going to glue the sysops heads together somepoint this month and discuss it more indepth.

    As for cron and kerberos, keytabs are a wonderful thing; we use kerberosized SSH for our cron services so we don't have to deal with SSH authorized_keys madness (we have a backported OpenSSH on the server which can pop a key from LDAP which we use for staff gaining access to the network and for the SSH proxy), but kerberos allows us to have one central list of authentication. We've got master/slave KDCs setup, and BIND is replicated, though we haven't tested failover (yet). LDAP isn't, mostly because slapd is a fucking pig to setup (they threw out a perfectly sane config file for putting everything in LDAP and then poorly documented it to boot!), but all the services are using local accounts so the site itself will stay up if LDAP takes a shit on us.

    As for our IPv4 only service, you'll have to wait and see. Trust me, I think you'll approve of this (and I plan to write patches to bring it to IPv6 sooner or later)

    Still always moving
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