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Computers -- Distributed computing project that involves cracking RC5 encryption and finding optimal Golomb rulers.

Is my port open? -- Site that allows you to check for an open port on any IP.

theZoo malware DB -- Great live malware repository for testing.

FireRTC -- Free online phone that allows you to spoof any number when calling. A great tool for scambaiting, and they encourage you to do so!

BOINC -- An amazing free utility that allows you to use your computer to perform various types of scientific research.

CIS Center for Internet Security -- Latest security news, hardening guides and more!

Quad9 DNS -- Intelligent, secure DNS service.

4Sysops -- Lots of great guides on configuring and troubleshooting Windows servers, group policy, Active Directory and more.

Spiceworks Community -- Great site for troubleshooting systems and networks.

Gibson Research Corporation -- Steve Gibson's site, lots of great utilities including ShieldsUP!, port information, and the Security Now podcast.

QEMU Advent Calandar -- Around Christmas time, you get a new disk image every day!

Source Code in TV and Films -- Computer code in TV and films and what it really is.

Netcraft -- Internet related research including webserver reports.

SS64 -- Amazing reference guide for a number of scripting languages.

RamNode -- Affordable VPS hosting that provides Linux and Windows options.

ANY.RUN -- Online live malware testing sandbox -- One of the more accurate tools to gather information about an IP.

Exploits Database -- List of security exploits.

hashcat -- Great password cracking utility that supports openCL.

SSL Server Test -- Analyzes the configuration of SSL web servers.

Group Policy Search -- Search tool for Group Policy Management.

Observatory by Mozilla -- Awesome tool that will scan a website and show security recommendations. -- Quickly test your internet speed.

Down Detector -- Keeps track of major technology related outages.

Let's Encrypt -- Provides free SSL certificates. I've been using them for this site since late 2015 when it was in beta.

GTmetrix -- Analyzes websites and provides suggestions to speed up loading times.

Reverse IP Lookup -- View all domains hosted from an IP or hostname.

Personal Sites

GreyGhost - William's Personal Server


MrMaguire's Website

Richard Stallman's Personal Site

Misc. -- Search engine for Web 1.0 sites.

Soulseek -- Great tool for finding rare music. -- Information and community regarding military rations of the past, present and worldwide. -- Great site that includes information on the K Ration, a military ration widely consumed by American soldiers during WWII. -- Scammer phone number database, great for scambaiting.

Bad Numbers -- Another good site for finding scammer numbers.

HTML5 Drum Machine -- Drum machine in your browser! Also emulates the TR-909.

Acid Machine 2 -- Make Acid House in your browser. Although not my favorite style, it's cool nonetheless!

Phone Number Lookup -- View a phone number's provider, line type, potential risk rating and more.

Useful, free utilities

Everything -- Powerful, small tool that quickly indexes your filesystem and lets you search for files on it.

CrystalDiskMark -- Great for benchmarking storage speeds. I use it for local and NAS benchmarking.

HTTrack -- Tool for mirroring websites.

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