Late last week, we instituted a change in the network configuration for desktop networks. This particular change came with an unintended side effect that is resulting in some people’s computers not getting an address from the network when plugged in. In the past, if a host was not registered with us and was plugged into …

Greetings, At 3:33 PM today the fileserver that serves unix home directories unexpectedly went offline for about one hour. The system appears stable and all services should be available now, if your workstation is misbehaving you should try rebooting it. If it’s still having issues or if you notice anything else out of order please …

Last night, shortly before 6:00 pm CT one of the network routers in building 240 lost connectivity to another in 221. This caused a breakdown in large portions of the lab’s network fabric, both internally and externally. CIS tracked down and fixed the problem shortly after 8:00 pm CT. The result was that many, if …

Many of you are learning of an exploit to the bash shell that was revealed last week, so I thought it would be worthwhile to post a summary of what’s been happening and what you need to do. First up, the exploit in question allows an attacker to take advantage of some poor coding in …

CIS is proposing the following dates for maintenance weekends. During these weekends, various lab services can be unavailable, including networking and business systems. Occasionally, the CELS Systems Team will schedule our maintenance activities to coincide with these dates, but that is flexible and should not necessarily affect your decision on whether these dates pose an …

For those who missed the announcement in Argonne Today last week, the lab has rolled out a new platform for accessing internal applications called “Dash”. The goal for this is to provide a one-stop solution for internal lab applications (including Dayforce) without requiring the VPN, and better protect the lab from possibly infected mobile and …

Hey, folks. I just wanted to drop a quick note to everyone introducing the newest member to our team, Chris Bills. Chris comes to us most recently from a stint at IBM, and has lots of experience as a quality linux systems administrator. We’re really excited to have him join us! Please feel free to …