GNU parallel is a shell tool for executing jobs in parallel locally or using remote computers. A job is typically a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. If you use xargs today you will find GNU parallel very easy to use, as GNU parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel. GNU parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU parallel as input for other programs.
Firejail is a SUID sandbox program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces. It currently implements hostname, filesystem, PID, IPC, and networking stack isolation, and it runs on any recent Linux system. It includes a sandbox profile for Mozilla Firefox. Firejail also expands the restricted shell facility found in bash by adding Linux namespace support. It supports sandboxing specific users upon login. The software also includes a small monitoring utility, firemon.
Arkeia Virtual Appliance is a no-cost version of Arkeia Network Backup specifically designed for VMware vSphere (ESX/ESXi) environments. With just a few clicks, VMware users can quickly deploy a fully-featured backup server with bundled licensing and get the first backups starting in minutes. The package includes Arkeia Virtual Appliance featuring Arkeia Network Backup, one hypervisor agent, a 250GB DiskStorage license for disk-based backups, and tape drive support. Commercial versions offer more VMware hypervisor agent support, source-side data deduplication, remote replication, and many more features.