Bring Out Your BIts! Great resources
Security – News
Questions and answers\Forums
Superuser – General Q and A
Sysadmin
Networking
Packet Bomb – Articles with videos and detailed analysis in wireshark (Because it’s not the network)
Cheat sheets
How to Be a Network Engineer Great blog by Rachel Bicknell, covering tips and advice to move along in your
networking career.
Packet Thrower – networking and virtualization, and fun.
Blame the Network – All things Cisco and more – IOS cheat sheets
Py Net – Python for network engineers by Kirk Byers. He also does an email course on python.
Operational IO – ELK write ups
Packet Life – A near perfect networking site by Jeremy Stretch