Freeradius EAP CRL Generation
Once you're issuing certificates for Freeradius authentication, you need to maintain a list of those certificates that are no longer valid. Here's how.
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Application Whitelisting for Windows
How are you going to protect your network from unknown threats? Application whitelisting is a good start.
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Detecting And Stopping Cryptolocker Type Viruses
Cryptolocker type viruses can encrypt everything on your network shares. Here's how to detect a zero-day infection that gets past your antivirus and onto your Samba shares.
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Whitelisting IP Address Ranges with iptables and ipset
If you run a firewall you know how important it is to block out the bad guys. Here's how to only allow parts of the world to even talk to you.
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Using a RADIUS 3.X Server on Ubuntu 14.04 for WIFI Authentication
WPA2 Enterprise is the much more secure wifi authentication method. There's no hackers cracking login passwords if you do this, but there are a few downsides. Here's how to implement it for a small environment using FreeRadius 3.x
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Chrome Hates Your SSL Certificate Security
Chrome has updated security and doesn't like any SSL certificate that uses SHA-1 as it's signing algorithm. That's good. Here's a quick fix for you.
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Properly Configure OpenSSH Server for Security
Don't get pwned. Lock down your SSH servers with PKI and other features with these few configuration changes.
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Making Complicated Passwords You Can Remember
Do NOT re-use passwords. Here's how to create and remember a very complicated password, and how to manage a huge volume of different passwords.
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Providing Guest Wifi on a VLAN
Separating out guest access to your network can be greatly simplified with a VLAN configuration.
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