Linux/UNIX/OSX Security

I’m pretty adamant that once a machine is actually needed to do real work, heavy security measures need to be taken to isolate, quarantine, and protect the files & applications running on a host/server.  of course that goes without saying to anyone in the I.T. industry, so I figured I’d share some documentation to help along the way to proper digital hygiene.

The NSA is quite helpful when it comes to the documentation, and has been for over 10 years.

Here is one document for OSX 10.4+ hardening: https://www.nsa.gov/ia/_files/os/applemac/I731-006R-2007.pdf

Information on Wireless LAN intrusion detection: https://www.nsa.gov/ia/_files/factsheets/I732-011-2008.pdf

Hardening of RHEL5 (also applies to 6 for the most part): https://www.nsa.gov/ia/_files/factsheets/rhel5-pamphlet-i731.pdf

Data Execution prevention on Windows: https://www.nsa.gov/ia/_files/factsheets/I733-TR-043R-2007.pdf

SELinux documentation for Red Hat 6: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security-Enhanced_Linux

A good addendum to the NSA OSX lockdown procedures (post-NSA documentation, for newer versions): http://www.macworld.com/article/2048160/how-the-nsa-snoop-proofs-its-macs.html

“Panther” through “Snow leopard” OS X security documentation from Apple: https://www.apple.com/support/security/guides/

“Little Stitch” OS X Firewalling utility: http://www.macupdate.com/app/mac/10426/little-snitch

A few tidbits of things that can be done with OS X to harden (these are pretty straight forward, but worth a read): http://laketa.com/how-i-setup-my-mac-when-doing-a-fresh-install-of-os-x/

Windows 7 hardening & countermeasures: http://download.microsoft.com/download/B/D/8/BD827E3F-2C24-4DD5-965B-C21F8101E477/ThreatsAndCounterMeasures.pdf

Windows Baseline security: http://technet.microsoft.com/en-us/library/cc526440.aspx

Let’s face it, some people run Windows XP (I do in VM for some software!)  This is a good security guide: https://www.nsa.gov/ia/_files/os/winxp/NSA_Windows_XP_Security_Guide_Addendum.pdf

Information about IPv6 and security within: https://www.nsa.gov/ia/_files/factsheets/Factsheet-IPv6.pdf

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