Category Archives: Administrivia

Code.DanYork.Com Now Back Available Over IPv6

worldIPv6launch-256pxAfter a Reddit thread started up that briefly referenced a 2011 post I wrote about adding IPv6 to Node.js apps, I was contacted by a Redditor who was surprised that my site wasn’t available over IPv6!

HUH???

I was surprised, too, because this site is hosted on a dual-stack server at Hurricane Electric and has been accessible over IPv6 since June 7, 2011, right before the World IPv6 Day event.

But in checking into it… there was no AAAA record in DNS for “code.danyork.com” that would point to the server, so the report was indeed accurate. For regular users this site was not available over IPv6.

It turned out to be one of those system administration issues that can bite you.  A month or two ago, TypePad, the provider I still use for my personal DanYork.com site, experienced a severe DDoS attack that took many sites offline.  They recovered but in doing so changed the way that sites were referenced a bit.  I had to switch to using a CNAME instead of an IP address as I had been doing.  The problem there is that due to the “no CNAME at zone apex” rule of DNS, I could no longer use just “http://danyork.com” – I would have to switch to using “http://www.danyork.com/”.

The episode highlighted to me, though, the need to be sure I have “Test over IPv6” in my list of things to check after making any major changes to any of my sites!

I didn’t want to switch and so I moved the DNS for “danyork.com” over to CloudFlare to make use of their “CNAME Flattening” so that I could still use “danyork.com”.

However, in moving the DNS info from my previous DNS hosting provider to CloudFlare, I messed up.  I didn’t bring across the AAAA record for code.danyork.com.  Also, very bizarrely, I didn’t have the “Automatic IPv6” setting enabled for danyork.com – even though it is now supposed to be on by default for all new domains.

So the fix was simple – I added the AAAA record for code.danyork.com, and I also flipped the switch on the Automatic IPv6 gateway.  Now both code.danyork.com and danyork.com are fully available over IPv6.

Code.DanYork.com Now Running WordPress 3.2.1

In addition to being where I write about programming and other developer topics, this site is also where I test out new WordPress releases before installing them on other sites like the Voxeo blog portal or the Voice of VOIPSA site.  This site runs on a WordPress Multi-Site installation, although there aren’t many sites here (another one is my new IPv6 book).

This past week I installed WordPress 3.2 (followed by the 3.2.1 bug fix) and I have to say I am quite impressed with the back-end changes described in the announcement.  Some of them are just minor little nuances… the changes in the typography, even…   it just feels snappier and faster.  If you run a blog on top of WordPress, I have to say that 3.2 is definitely worth a look… I’m loving it!

Code.DanYork.com Now Available Over IPv6 as of World IPv6 Day

Ipv6day 1Just in time for World IPv6 Day, I’m pleased to note that Code.DanYork.com is now available over IPv6!

This site runs on WordPress and while WordPress itself works fine with IPv6, the trick was to find a web hosting provider that provided solid IPv6 connectivity.

After much investigation, I finally set up a basic web hosting account with Hurricane Electric. They’ve been in a leader in IPv6 deployment and have great interconnections to other IPv6 networks. They are also the folks behind Tunnelbroker.net, the free service I use to get IPv6 connectivity into my home office (using a setup for IPv6 with an Apple TimeCapsule that I described in another blog post).

I had this site hosted at another webhost, but through the sheer beauty of WordPress’s export and import features I was able to move the entire contents of the site over to Hurricane Electric without any problem.

For those curious, I’m running the site in WordPress’ Multisite mode as I’m planning to move more of my sites over to HE’s hosting. I’m using the Domain Mapping plugin to let me map different domains to different blogs. It’s all working wonderfully.

Now, unlike Google and Facebook, I’m not removing the IPv6 connectivity for this site after the 24 hours of World IPv6 Day are up. This site is live with IPv6 and will stay set up with IPv6 for the foreseeable future. (But having said that, I have nowhere even remotely near the visitors of the larger sites… and I have the luxury of not having to deal with large numbers of people who may have challenges connecting to my site.)

Welcome to the new IPv6 Internet!

P.S. If you want to learn more about IPv6, and in particular IPv6 and VoIP/SIP, you can visit the IPv6 Resource Page I put together over on Voxeo’s site. I’ve got some HOWTOs, tutorials, videos, links and more…


As an aside, over on the right navigation bar you’ll see a little “IPv6 detector” box that will show you either your IPv6 address or your IPv4 address (and yes, I blacked my actual address out in the screenshot because I’m just naturally paranoid):


Ipv6detector

I’m using the “IPv6 detector” plugin for WordPress by Andres Altamirano, although I did alter it a bit. I shortened the text that was printed for an IPv6 address so that it would fit in my theme’s sidebar. I also removed the URL link and removed the extra links about IPv4 exhaustion.

Installation was a snap, though… I just installed it into WordPress and then went to the Widgets area of my theme and dragged it into the location where I wanted it.

Welcome to Code.DanYork.com!

Welcome!  You’ve found your way to yet-another-blog maintained by Dan York. When I recently did a count, I actively write on about 14 different blogs, most of which I list here.

So why start yet another place to write?

Well, the simple answer is that I want some place to write about programming, open source software, git, Tropo and so much more.  Unfortunately that doesn’t really fit in with my main blogs of Disruptive Telephony, Disruptive Conversations or my main DanYork.com.  I do have sites like Voxeo Developers Corner and the Tropo Blog where I can – and will – be writing… but those sites are targeted more toward services from Voxeo, the company I work for.  I want a place to write about development in general.

I sort of have that now with my Advogato account, but Advogato is pretty much the same system it was six years ago… no comments, no auto-posting to Twitter or Facebook… I want to write about coding in a more modern CMS.

So I’m here… and odds are that I’ll be importing this feed back into Advogato. 🙂

I’m still tweaking the site… messing around with the theme and CSS… so it will change.  Stay tuned for more…