Firewall

If you do nothing else, use a security conscious DNS

The easiest way to protect yourself from malware etc is to use a DNS provider like quad9.net or nextdns.io. They filter all hostname requests thru databases they maintain and WON’T LET YOU go to a known bad host by just not resolving that hostname! Please, for your own sake, do it now.

I won’t go into details about DNS…if you need more info check https://www.cloudflare.com/learning/dns/what-is-dns/

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RADIUS servers for Linux and Windows

I can’t believe I didn’t realize this but there’s a free RADIUS server for Linux from FreeRadius. And Windows 2000 and Windows 2003 both contain a RADIUS server. So, if you’re already running one of these, why not switch over to WPA Enterprise? There’s gotta be a free one available for Windows XP, doesn’t there? I just don’t know of one at this time but I’ll keep looking. And if you know of one, please let me know.

BTW, I got some of this information from this article but I don’t agree with everything he says in it — I mean, I was taught was that real security is all about layering your security and, if you’re running a small network, why not include MAC address filtering and SSID masking?

Update: FreeRADIUS.net has a Win32 distribution of FreeRADIUS built from the original FreeRADIUS sources using Cygwin.

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