Paranoid Penguin - Brutally Practical Linux Desktop Security
When using any public, hostile or otherwise untrusted network, you must pay careful attention to your browser's padlock icon. If there is any problem with any certificate being presented by an SSL-protected site you've had no issues connecting to in the past, you should assume that somebody is attempting a man-in-the-middle, proxy or imposter Web site attack.
Gmail, Yahoo, Windows Live (Hotmail) and on-line banking sites are all particularly likely for someone to attempt to proxy or spoof. If you must visit such a site from a hostile LAN, again, watch for any certificate weirdness.
If you have your own Webmail server or have access to Webmail from a smaller provider, such as a regional ISP, those may be less likely for someone to attempt to spoof or proxy than one of the “big guys”. For maximum paranoia though, using a strong VPN connection really is best.
And with that, we're out of space for this month, but we're done! If I say so myself, it wasn't a bad column's work. My laptop is now hardened for DEFCON WLAN use, and you've hopefully learned a thing or two about Mick's brutally pragmatic approach to desktop security. We'll see whether I end up on the Wall of Sheep this year (if so, maybe I'll admit it, and maybe I won't). Good luck with your own public LAN adventures!
Mick Bauer (firstname.lastname@example.org) is Network Security Architect for one of the US's largest banks. He is the author of the O'Reilly book Linux Server Security, 2nd edition (formerly called Building Secure Servers With Linux), an occasional presenter at information security conferences and composer of the “Network Engineering Polka”.
|Using tshark to Watch and Inspect Network Traffic||Aug 31, 2015|
|Where's That Pesky Hidden Word?||Aug 28, 2015|
|A Project to Guarantee Better Security for Open-Source Projects||Aug 27, 2015|
|Concerning Containers' Connections: on Docker Networking||Aug 26, 2015|
|My Network Go-Bag||Aug 24, 2015|
|Doing Astronomy with Python||Aug 19, 2015|
- Using tshark to Watch and Inspect Network Traffic
- Problems with Ubuntu's Software Center and How Canonical Plans to Fix Them
- Concerning Containers' Connections: on Docker Networking
- A Project to Guarantee Better Security for Open-Source Projects
- Where's That Pesky Hidden Word?
- Firefox Security Exploit Targets Linux Users and Web Developers
- My Network Go-Bag
- Doing Astronomy with Python
- Build a “Virtual SuperComputer” with Process Virtualization
- diff -u: What's New in Kernel Development