Infostructure
-------------
-* Dynamic DNS: [heartbeat](https://www.mirbsd.org/cvs.cgi/contrib/code/heartbeat/) ([sobre](https://www.mirbsd.org/permalinks/wlog-10_e20130520-tg.htm#e20130520-tg_wlog-10)).
+* Dynamic DNS:
+ * [heartbeat](https://www.mirbsd.org/cvs.cgi/contrib/code/heartbeat/) ([sobre](https://www.mirbsd.org/permalinks/wlog-10_e20130520-tg.htm#e20130520-tg_wlog-10)).
+ * With nsupdate: [1](http://linux.yyz.us/nsupdate/), [2](http://linux.yyz.us/dns/ddns-server.html), [3](http://caunter.ca/nsupdate.txt), [4](http://www.rtfm-sarl.ch/articles/using-nsupdate.html), [5](https://github.com/skx/dhcp.io/).
* Keyserver: [puppet-onak](http://git.puppet.immerda.ch/?p=module-onak.git).
* OpenID Provider:
* [Run your own identity provider](http://wiki.openid.net/w/page/12995226/Run%20your%20own%20identity%20server).