Friday, January 27, 2017

Port Forwarding to Reach a Docker Instance

I have a docker instance running on a server that I can SSH into, but I am working remotely and would like to access its services. There are ways to set up something running in Docker so that it passes through and exposes the port from the host machine, but who wants to go through some complicated setup for something you are developing temporarily? I just want to be able to reach the web server that is exposed to the host computer without going through too much effort.

Sunday, January 8, 2017


The memory testing tool on bootable Linux distributions seems to have disappeared. It used to be when you booted up a CD or USB with a live Linux distribution like Ubuntu that there was an option for a memory test. Now that option seems to be gone. I needed to test the memory on a desktop PC (a new one with UEFI) and couldn't find it on any bootable downloads. Also, the PC was finicky about what would boot (probably because of UEFI, but I'm not sure about that).

I had never previously used the freestanding Memtest86, but it is a small download and creating the bootable USB was very simple (at least, it was on Linux). It booted just fine on a brand new UEFI PC and ran a comprehensive memory test in a few hours. So if you are looking for a memory test, skip the full distribution download and just get the bootable Memtest86.