I’ve added a couple of links to our links pull down on our web site. One is to something called “Tech Rights” which deal with things like copyrights, patents, and particularly how they affect the open source and technological user community.
The second link that I have added is to “Open Source“, a website that has many good technical articles including many good tutorials regarding how to utilize Linux and Open Source software. These will help you make better use of many of the facilities here.
I broke scientific7.eskimo.com today. It is in the process of being restored from backups. Please use centos7.eskimo.com, which is based upon the same RHEL7 code base, in the interim.
Reboots to make active security patches have been completed. Sorry it took me somewhat longer than anticipated owing to I had a couple of machines that were stubborn and did not want to go down for reboot.
I will be rebooting all of the Intel based machines between 1:30AM – 2:00AM November 7th to make active several security updates that patch serious issues with openssl, systemd, and DNS.
Downtime for any given machine should not exceed about 15 minutes. Most will be less.
I did not expect last night to be a maintenance night but it had other ideas. Around 3AM name service for our own hosts failed although our name servers were still resolving external hosts fine.
The issue was caused by an update that replaced the named apparmor profile on the master name server. We use a hidden master (a master which is not reachable from the outside world) for security reasons. I use a file system layout for named that is different from the default Ubuntu layout. I had to modify the apparmor profile accordingly. When the update replaced my modified profile, it resulted in named not being able to read some of it’s configuration files and then failing to resolve local host names as a result.
This has been corrected.