Configuring pam_pwquality on Ubuntu

It's important to use strong passwords on your Linux system. Brute-force attacks regularly happen during other intrusions to the network, and strong passwords will prevent easy movement between systems. When any system has been successfully attacked there is a risk of offline brute-forcing of captured password files, and in this case reused passwords between systems will be quickly discovered.

Apptainer

Apptainer is a container platform, and is a popular alternative to Docker on HPC clusters. It allows you to run containers that package up pieces of software in a way that is portable and reproducible. You can build a container using Apptainer on your laptop, self-managed desktop or a virtual machine and then run it on a DICE desktop or server or even move it to the cloud or a HPC cluster.

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