Use system performance tools for Linux to display process statistics.
Manage systemd services remotely over SSH protocol.
sponge utility to read standard input and safely write it out to the same file.
Fix “device excluded by a filter” LVM error.
Install Nexus Repository Manager (NXRM) 3.
Monitor file system events to restart service on every configuration change.
numfmt command-line utility which is a part of the standard GNU Core Utilities to pretty print decimal or binary numbers.
varnishlog to log specific Varnish requests.
Varnish Shared memory Log can put a major strain on the disk (I/O write operations). The solution is to store it on the virtual memory filesystem.