Configuration, Debug and diagnostics cheat sheets

Network and Security vendors (Fortinet, Cisco, Rad, HP/Aruba)

Fortigate debug and diagnose commands complete cheat sheet | PDF

Cisco Nexus 9000 9k debug and diagnostic commands cheat sheet | PDF

RAD ETX 203, 205, 220 debug and information commands | PDF

MRV Optiswitch OS904 OS906 OS912 debug and diagnostic commands | PDF

Aruba and HP switches debug and diagnostics commands | PDF

Linux, FreeBSD, OpenBSD, and Open Source Tools

Linux and PF BSD firewalls cheat sheet | PDF

Git and github.com commands cheat sheet | PDF

GNU screen terminal multiplexor cheat sheet | PDF

Windows software and utilities

FAR file manager cheat sheet of keyboard shortcuts | PDF