Flaky migration

With some rearrangement of the lab computers, I had plenty of cause to use the Migration Assistant in recent times. It’s usually a smooth process, but I have noticed some flakiness recently. The most reliable way to transfer files has typically been to make a direct ethernet connection between the machines. Because the Mac automatically handles crossover, you […]

Sierra cuts off X11 forwarding over SSH

We use a cluster at the BESSY synchrotron to process data using XDSApp. However, upgrading to macOS Sierra stopped this dead. Logging in to the remote host was fine, but no XDS App appeared. Confounding. The answer is that Sierra moved a component that is involved in X11 window forwarding. The X Window server (ah, SGI) […]