This morning Zen swapped DrQue.net’s DNS and e-mail server computer from its temporary home on the Pi Dragon to its new home on the Emerald Dragon. The Pi Dragon quickly took the helm after the death of the Micro Dragon in mid March.
DNS worked without any issues, as did the Apache redirect for the root of DrQue.net. E-mail gave us a little trouble. Seems that with this install of Ubuntu the mail directory was moved from /var/mail to ~/mail. Once I got that worked out e-mail seemed to be fully functional. The other problem was with fail2ban, intrusion prevention software that watches log file and firewalls IP addresses attempting to gain access to the server. I couldn’t figure out exactly what the program was complaining about and ended up just reinstalling the default configuration. That seemed to do the trick and very quickly I watched several IP addresses get banned.
The Emerald Dragon has significantly more CPU power than the Micro Dragon and draws a fraction of the power. With zero moving parts the Emerald Dragon should also never have to worry about issues like hard drive failure that ultimately took out the Micro Dragon. However, it will have some big shoes to fill. The Micro Dragon has had continuous run times of more than a year straight without a reboot, several runs at more than 200 days, and most runs being more than 100 days in a row. Perhaps a year from now we can evaluate how solid the Emerald Dragon really is. For now the future promising: A fanless, solid-state, battery backed system running the a long-term stable OS. I look forward to what the Emerald Dragon can do.