KDE vs GNOME vs WindowManager and XWindows.


Peripheral Hardware methods
-------------------------------------
dmesg
lsusb
hdparms
...more...

Printing.  CUPS, lpr, drivers from manufacturers.  Why?  In the early days, Linux was used as the printer server for all Windows houses.

Backups: Burning CD/DVD, thumb drives, tape drives

Disk space: df, du, etc


SECURITY
=================================

VNC via ssh tunnel with prepackaged ssvnc and the like.  VPN, SSL, CA command, key-gen, key chain, RSA, DSA, AES


Daemons/Services
-----------------------------
chroot ssh
chroot bind
No root userid
apache non root userid, fastcgi, suexec, suphp, more...
To disable telnetd and ftpd, in favor of scp/sftp.


Scripting, shell choices (best per application)



Routing Commands
-------------------------
ip or obsolete ifconfig
route -nr and other troubleshooting options.
firewalls ifp, iptables, GUIs (Firestarter, ...)

BGP


Peter