Site map of cromwell-intl.com

• Linux and Unix
  • Security-oriented (also see the security section below)
    • How to harden a Linux or OpenBSD installation
    • How to break into Linux (and how to prevent this)
    • Analysis of multiple intrusions into a poorly-configured Linux system
    • How to set up and use SSH
    • How to set up encrypted storage on Amazon EC2
    • How to make sendmail use SSL/TLS whenever possible
    • Integrating a UNIX client into a Kerberos realm controlled by a Windows Active Directory server
  • Linux/Unix Administration
    • Linux/UNIX Command Fundamentals and the File System
    • TCP/IP configuration commands for Linux/UNIX, MacOS X, Windows, and Cisco IOS
    • How Linux Boots
    • Transitioning from RHEL / CentOS 5 to 6
    • Installing CentOS Linux on an Alpha
    • Package Management on Linux and BSD — A Phrase Book for RPM, apt-get/dpkg, and pkg_*
    • How to Build Linux Kernels
    • How to Build Linux Kernels on Alphas
    • Exploring the Linux Kernel
    • How to Build OpenBSD Kernels
    • How to Add MP3 Support to Red Hat, CentOS, and Fedora
    • How to use FTP (essential skill sadly unknown by many)
    • Speeding up file transfer with tar and ssh
    • Display the word count in the Vim statusline
  • Raspberry Pi
    • Linux and other operating systems on a low-cost 86×54 mm board
    • Wired and Wireless, IPv4 and IPv6, Static and DHCP, WPA2-PSK Security
    • Building an OpenVAS Vulnerability Scanner On the Raspberry Pi
    • Building a Network-Attached Storage Appliance with the Raspberry Pi
  • Error messages
    • Fixing Error Messages About Missing GTK Modules
      Failed to load module "libcanberra-gtk-module.so": libcanberra-gtk-module.so: cannot open shared object file: No such file or directory
  • Multimedia
    • Fix for: My Microphone Is Not Working
  • OpenBSD
    • Running OpenBSD on a Dell Inspiron 1000 Laptop
    • Compiling Software on OpenBSD
      • Wireshark
      • OpenCV
      • OpenVAS
      • Rainbow Crack
    • WPA2 / 802.11i Wireless Networking Security on OpenBSD
  • Apache
    • Detailed analysis of Apache logs with simple Linux/Unix commands
    • How to enable compression with mod_gzip using the modified Apache web server in OpenBSD.
    • How to create and install keys and certificates for a secure Apache web server
    • How to password-protect web pages
  • Virtualization
    • Networking in VMware: How it works and how to modify it.
    • How run put the QEMU emulator and Linux on a USB device, so you can run Linux within a window on a hosting maching running Linux or BSD or Windows
    • How to install and run Windows within the QEMU emulator on an OpenBSD desktop
  • Other Linux and Unix Tips and Tricks
  • Using BitTorrent Magnet Links with Firefox and Chrome
  • Digital Cameras, Linux, and BSD
  • Why I Don't Fear UEFI (Not much. For now, anyway)
  • X Configuration Issues on Linux and BSD
  • A few Windows things, if we must
    • Installing Office 2007 on Windows XP
    • Fixing the PATH on Windows so you can easily run useful software that you had to add
  • Strange Linux/Unix-related stuff
    • The Gallery of Crash Dump Screens
    • UNIX the Supermodel
    • Strange pictures: UNIX the Fire Extinguisher
    • Strange pictures: Linux the Laundry Detergent
    • The Gospel of Tux
    • Biblical Unix
    • Common Windows error message
    • What might be Windows Vista source code

• Networking with TCP/IP
  • Networking Fundamentals and Terminology
  • Network and Telecommunication Cables
  • TCP/IP Networking in general
  • How IP Routing Works
  • How VLAN (Virtual LAN) Technology Works
  • How NAT (Network Address Translation) Works
  • TCP/IP configuration commands for Linux/UNIX, MacOS X, Windows, and Cisco IOS
  • Quick Overview of Protocol Header Structures
  • Breaking in, initializing, and configuring a Cisco 2000/2500/2600/3000/4000 series router
  • Breaking in, initializing, and configuring Cisco and 3com switches
  • >Cisco Catalyst 2900 XL Ethernet switch disassembly and repair
  • What is IPsec? — A simple explanation of IPsec, the network security it provides, and how to set it up on Linux
  • WAN Specifications
  • WLAN Specifications
  • Network Attack Analysis — Classifying and Identifying Attack Patterns With Textual Analysis Tools
  • How to read netstat -a output
  • How to read netstat -s output

• Computer and Network Security
  • My public key
  • Digitally signed messages and how PGP signs e-mail.
  • Fundamentals
    • Just Enough Cryptography
      • Cryptographic Terminology
      • Symmetric and Asymmetric Ciphers
      • One-Time Pads
      • Cipher Strength and Key Length
      • Cryptographic Hash Functions
      • Brute-Force Search for Unusual Hash Outputs
      • Digital Signatures and Certificates
      • Cultural Use of Cryptography
      • Further Reading
    • How To Verify Digital Signatures
    • TCP/IP
    • How NAT (Network Address Translation) Works
  • Information security
    • Confidentiality and Data Integrity Tools
    • Government and Industry Regulations
    • Availability Tools
    • Computer Forensics
    • Public-Key Infrastructure (PKI) Providers
    • How to set up encrypted storage on Amazon EC2
  • User Authentication Tools
    • User authentication weaknesses and defenses
    • How passwords work and how to break them
    • Reverse-engineering the hacker: What are typical hacker passwords guesses?
  • System security
    • System Security Auditing Tools
    • OS-Specific Security Issues
    • Intrusion Detection Tools
    • Analysis of multiple intrusions into a poorly-configured Linux system
    • Attacks on Virtualization Security
    • Hardware Exploits
    • Physical security
  • Network security
    • Network Security Auditing/Monitoring Tools
    • Network Monitoring / Packet Sniffing Tools
    • SSL/TLS Security
    • What is IPsec? — A simple explanation of IPsec, the network security it provides, and how to set it up on Linux
    • Firewall Tools
    • World-Wide Web Security
    • QR codes and Near-Field Communication risks
    • TCP/IP Stack Hardening
    • Network Attack Analysis — Classifying and Identifying Attack Patterns With Textual Analysis Tools
  • Cloud Security
    • An Overview of Cloud Security
    • Security Concerns of Cloud Technology Users
    • Cloud Security Blog — Thoughts from Time to Time on Cloud Security
  • Malware, Social Engineering, and Software Security
    • Why HTML E-mail is Dangerous
    • Analyzing Web Mail Abuse and Spear-Phishing
    • Analyzing a "Phishing" Scam Attempt
    • Learn about scams, spam, phishing, and worse, and take some great Phishing IQ tests
    • Analyzing Hostile Data
      • Gibe-F Worm, also known as the Swen Worm, one of the more interesting pieces of malware I have.
      • Downloader.Tibs.Gen-1 worm
      • Bagel worm
      • Mytob worm
      • Mydoom worm
      • Downloader.Small-1109 Trojan
      • Stration.JH Worm
      • Sober.U-3 Worm
      • Trojan.Agent-59561
      • Trojan.Exchanger.DL
      • Trojan.Downloader
      • Hacking the Human — Bank scam
    • Fighting Internet Hoaxes
    • Software Security Tools
  • Reference material
    • Security-related RFCs and Mitre Nomenclature Projects
    • Recommended Reference Books — Best practice how-tos, background information, and more
    • Infosec Bulletins
    • General Information
    • Cyberwar
    • Other Organizations' Policies
    • Infosec Response Teams
    • The Government Electronic Surveillance Agencies
    • Keeping Track of the Bad Guys
    • Separatist, Para-Military, Military, and Intelligence Organizations

• Textual Analysis
  • Network Attack Analysis — Classifying and Identifying Attack Patterns With Textual Analysis Tools

• 3-D Data and Image Analysis
  • 3-D Laser Scanning for Biology, Anthropology, and Archaeology
  • 3-D Range Scans of Trilobite Fossils
  • Composite Light-Stripe Images
  • Multi-Viewpoint Data Registration
  • Raytracing
  • Contrast Enhancement through Localized Histogram Equalization
  • How to Scan X-Ray Films

• Publications
  • Bob Cromwell's publications

• Basics of Turkish Grammar
  1. Introduction
  2. Background, list of real reference texts
  3. Word order, orthography, vowel classes and variable vowels, HTML codes for Turkish characters
  4. Pronouns, nouns, possession, adjectives, adverbs
  5. Verbs
  6. An attempt at an alphabetical list of Turkish suffixes (really morphotactics)

• Russian Grammar and Typesetting
  • Russian Grammar
  • Cyrillic in Latex and Postscript and Unicode

• Greek Grammar

• INFOSEC History and Military Tourism
  • Belgium — The Battle of the Bulge — Bastogne and the Ardennes Forest
  • France — The D-Day landing beaches and other sites in Normandy
  • Germany — WWII German Enigma Information Security
  • Italy — Paestum, south of Salerno, Operation Avalanche: Allied landing of September 1943
  • Turkey — The Gallipoli Campaign, 1915
  • UK
    • UK Cabinet War Rooms
    • Bletchley Park
    • WWII and Cold War Military Tunnels in the White Cliffs above Dover
    • Swingate Chain Home Radar Station
    • WWII glider base outside Harwell
    • Scapa Flow and the Churchill Barriers
    • UK WWII Military Communications Gear
  • USA
    • Finding the American Black Chamber in New York
    • Washington DC — Arlington Hall
    • Washington DC — Naval Security Station
    • Herbert Yardley's restaurant in Washington DC
    • National Security Agency museum
    • Historical Electronics Museum (radar and military radio, just outside Baltimore-Washington International Airport)
    • USS Chaumont (AP-5)
    • DL3G — Delta Lima 3 Green — Cold War watch tower

• Travel Suggestions
  • Athens to Paris by Train
  • Alaska
  • Belgium
    • The Battle of the Bulge — Bastogne and the Ardennes Forest
    • Namur and Dinant — Two Historic Towns in the Northwest Ardennes
    • Art Nouveau Architecture in Brussels
    • Comic Book Art in Brussels
    • Belgian Beers and Brussels Cafes
    • Surreal Statues in Brussels
  • Bulgaria
    • Sofia
    • Veliko Tarnovo
    • By Train through Bulgaria
    • Bulgarian Food and Drink
  • Canada
  • Czech Republic
  • Egypt
    • Cairo
    • Giza Plateau — Pyramids and Sphinx
    • Luxor and the Valley of the Kings
    • Aswan and Abu Simbel
    • Mount Sinai and Dahab
  • Estonia
  • France
    • Renting a canal boat in France
    • The D-Day landing beaches and other sites in Normandy
    • Jim Morrison in Paris
    • Marseille and the Coast Road
    • French School Lunch Menus
    • Detectives in French Fiction and Life
    • Barbégal, Les Baux-de-Provence, and St-Rémy-de-Provence
    • Thomas Jefferson in France
    • Ronin Movie Locations
    • Some Americans Don't Realize That They Have Electricity in France
    • Megaliths
      • Pierre Tourneresse, a Neolithic Passage Grave in Normandy
      • Megaliths in the lower Loire Valley — Saumur and Gennes
      • Dolmen de la Pitchoune — A Megalithic Dolmen structure in Provence
  • Greece
    • Logistics
    • Athens and Cape Sounion
    • The Peloponnese: Corinth and Olympia
    • Meteora
    • Mycenae
    • Tiryns
    • Delphi
    • Thessaloniki
    • Santorini (Thira)
    • Mykonos
    • Ios
    • Delos
    • Paros
    • The other Greek islands: Patmos, Rhodes, Naxos, Samos
    • Greek Food and Drink
    • Greek Ferries and Island Hopping
    • Train Travel in Greece
    • Bus Travel in Greece
    • Roadside Greek Orthodox Shrines
  • Hungary
  • Italy
    • Atrani and the Amalfitani Coast
    • Ruins in Rome — Pompey's portico and the site of the Senate.
    • Napoli (Naples)
    • Pompeii
    • Nero's Villa Poppaea at Oplontis
    • Paestum, an ancient Greek city in southern Italy, and Salerno.
    • Umbria — Perugia, Assisi, Sorento, Orvieto, and the Umbrian countryside and hill towns
    • Liguria — Cinque Terre — Riomaggiore, Manarola, Vernazza, Monterosso al Mare, Corniglia
    • Travel by trains in Italy
    • Driving in Italy, and the Long-Delayed Italian Traffic Tickets
  • Japan
  • Jordan
  • Latvia
  • Lithuania
  • Mexico
  • People's Republic of China (Hong Kong, Guanzhou, Yangshuo)
    • Getting There, and Dealing With The Languages
    • Hong Kong
    • Teaching a Courer in Hong Kong, and Visiting Macau
    • Guangzhou, Part 1 — Logistics, Shamian Island and the Pearl River
    • Guangzhou, Part 2 — Qingping Market, Temples, Street Scenes
    • Yangshuo, Guangxi Province
    • Up the Li Jiang, or Li River
  • Poland
  • Romania
    • Bucharest
    • Painted Churches in Bucovina and Gura Humorului
    • Romanian Food and Drink
    • By Train through Romania
    • Driving through the Carpathian Mountains
  • Russia
  • Syria
  • Trinidad
  • Turkey
    • General information
    • İstanbul
    • Aphrodisias
    • Ephesus — the ruined city
    • Ephesus — A walk from Selçuk to Ephesus
    • Ephesus — The Temple of Artemis
    • Ephesus — Maryemana
    • Gallipoli
    • Göreme and Cappadocia
    • Bodrum and the Mausoleum of Halicarnassus
    • Silk Road Hans
    • Hatuşaş
    • Konya
    • Mountain Treks in the Beşparmak Mountains
    • Nemrut Dağı — Mount Nemrut
    • Olimpos and the Chimera
    • Pamukkale, Hieropolis, and Laodicea
    • Turkish food
    • Getting around Turkey on buses
    • Getting around Turkey on trains
  • U.K.
    • London
      • London — Cabinet War Rooms
      • London — Bletchley Park
      • London — Lee Ho Fook's
    • Megaliths and Stone-Age Structures
      • Stonehenge
      • Avebury
    • Hiking along Hadrian's Wall
    • Oxford
      • C.S. Lewis and J.R.R. Tolkien at Oxford
      • WWII glider base outside Harwell
    • Dover
      • WWII and Cold War Military Tunnels in the White Cliffs
      • Swingate Chain Home Radar Station
    • Scotland and Orkney
      • Fort William area
        • An ascent of Ben Nevis, the highest mountain in Britain
        • The Road to the Isles, over 22 miles (37 km) overland across the high Scottish moors of Lochaber from Corrour Station to Fort William
        • A walk through Glen Nevis and the Water of Nevis
      • Pitlochry — The Bealach Walk and Megaliths
      • Orkney Islands
        • Skara Brae, a Neolithic Village
        • Neolithic Orkney — Maeshowe, the Ring of Brodgar, the Stones of Stenness, etc
        • The West Coast Walk — Along the Cliffs of Orkney's Mainland Coast
        • The Sousterrain — An Underground Pict Dwelling in Orkney
        • Scapa Flow and the Churchill Barriers
      • The Isle of Iona (and Oban, and Mull)
      • The Grit Boxes of Scotland
    • Navigating with the National Grid system and Ordnance Survey maps
    • Places to stay in the U.K.
  • U.S.A.
    • Alaska
    • Baltimore
      • Baltimore — Edgar Allan Poe & Mid-Day at The House of Omnivores
      • Otakon, Camden Yards, and the Bromo-Seltzer Tower
      • National Security Agency museum
      • Historical Electronics Museum (radar and military radio, just outside Baltimore-Washington International Airport)
    • Detroit and its Post-Apocalyptic Architecture
    • Los Angeles — Venice Beach
    • Montgomery, Alabama
    • New York
      • Arrive by air at LaGuardia Airport
      • Skating Manhattan: 15.5 miles from the Bronx to Battery Park on a longboard
      • Touring the Ghostbusters locations in New York
      • McGee's, the model for MacLaren's in How I Met Your Mother
      • Fictional Architecture of Manhattan
      • The Counterfeit Coffee Caper: My encounter with NYPD
      • Walking to work along the East River, and spectacular views of New York Harbor from the 31st Floor
      • Lower East Side: Rivington Street
      • Lower East Side: Stanton Street
      • New York Internet Infrastruction: Sites normally seen only as traceroute hops
      • New York residences of Hunter S Thompson
      • New York home of Humphrey Bogart
      • Franklin Delano Roosevelt's home in New York
      • Where Barack Obama lived, studied and hung out in Manhattan in the early 1980s
      • Looking for the home of the last Ottoman Sultan
      • Edgar Allan Poe's home in the Bronx
      • H.P. Lovecraft's home in Brooklyn and the Nicholas Roerich Museum in Manhattan
      • Finding the American Black Chamber in New York
      • Cortlandt Alley: The Only Alley in Manhattan
      • The many connections between Marvel Comics and Manhattan
    • Philadelphia — Edgar Allan Poe's House and Two Scoldings
    • San Francisco — Haight-Ashbury, The Grateful Dead, Jefferson Airplane, and the Summer of Love
    • Washington DC
      • Looking for the National Christmas Tree behind all the security fencing
      • Arlington Hall
      • Naval Security Station
      • Herbert Yardley's restaurant in Washington DC
      • Some goofy Masonic Sights
    • Transport in the U.S.A.: Bus, Train, Car
• Megalith Travel
• How to replace the SIM card in your GSM phone and avoid expensive international roaming charges
• How to repair a backpack

• Radio stuff
  • HF QRP operation — KC9RG
  • Morse Code
  • A Simple Audio Tone Control Circuit
  • Building your own RF dummy load and power meter
  • Rhombic antennas — Classic designs for UHF & microwave
  • J-Pole antennas (end-fed half-wave Zepps)
  • Small HF antennas — shortened doublet designs for 10.1 and 14 MHz
  • Balanced line impedance and radiated power
  • The Radio Spectrum for Beginners
  • Radio Frequencies — Ham bands and various utilities
  • Powerful Medium-Wave Stations in North America, Central America, and the Caribbean
  • Radio propagation
  • Construction / repair / modification references
  • Repairing a Tektronix 2445A oscilloscope
  • Building your own oscilloscope probes
  • How to fabricate circuit boards, transferring the pattern with a laser printer, and mixing up your own etching solution
  • Modifying an Icom IC2-SAT transceiver for wide frequency coverage, Part 1
  • Modifying an Icom IC2-SAT transceiver for wide frequency coverage, Part 2
  • Modifying an Icom IC-229 transceiver for wide frequency coverage
  • Modifications for the Icom IC-3220 VHF/UHF transceiver
  • Internet "Radio"

• Various Technical Topics
  • Multimedia File Tricks:
    • How to Convert PAL DVDs to NTSC, Create and BurnDVDs, and do Other Video Conversions
    • How to copy DVDs, even those with CSS encryption and copy protection, using free software and free operating systems
    • How to Download Videos from YouTube and convert them to XviD and DivX
    • How to Convert Audio Files from WMA or FLAC to MP3
    • How to Extract MP3 Audio from a Video File
    • How to Rotate Digital Camera Movies by 90° and Convert Them to DVD
  • Some Vaguely Steampunk Projects
    • How to Interface a Soviet Багта-50 1955 rotary-dial telephone with the GSM network and VoIP
    • A Fully Metered Power Controller and Lamp
    • A Light Fixture with an Early 20th Century Esthetic
    • How to Control a Stereo with a 250-volt 100-amp Double-Pole Knife Switch
    • How to fabricate circuit boards, transferring the pattern with a laser printer, and mixing up your own etching solution
  • Computer and audio/video hardware:
    • Install your own DSL line
    • HDMI cables and their connector pinouts
    • SVGA cables and their connector pinouts
    • EIDE / PATA / SATA / USB / Floppy cable pinouts
  • The Samsung Galaxy S2 smartphone
    • How to install CyanogenMod on the Samsung Galaxy S2
    • How to set custom ringtones, alarms and notification sounds on a Samsung Galaxy S2
    • SIM unlocking the Samsung Galaxy S2
    • How to take a screenshot on the Samsung Galaxy S2
    • How to connect the Samsung Galaxy S2 to Linux or OpenBSD
    • How to access the Samsung Galaxy's secret test menu
  • HTML and Web Authoring:
    • HTML Tools
    • How to to Search Engine Optimization
    • Browser and Display Greyscale Test Page
    • How To Use Google Adsense Within XML/XHTML
  • Other Electrical and Electronic Topics:
    • Motorola DCT 2000 Set-Top Box Diagnostics
    • Attempting to Recover Data from QuickDisk Media
    • How To Recover A Digital Camera That Has Been Submerged In Liquid
    • Measuring AC Power Usage

• Nonsense
  • Toilets of the World
  • Teaching horror stories — No such thing as a stupid question? Hah!
  • Bizarrely irrelevant requests for quotes and bids that I have received, and the nonsense I submitted.
    • Simu Construction Company, Ltd and the Zambian Lavatories
    • Ittehad Chemicals Ltd and OPERATION PAKISTANI BALLDROP, PART ONE
    • Ittehad Chemicals Ltd and OPERATION PAKISTANI BALLDROP, PART TWO
    • Atlantic Gulf & Pacific Company of Manila and OPERATION MANILA BOOKLIFT
    • Metito Overseas Ltd and the BAHRAIN EXCAVATION
    • Seman Peru and the SVERDLOVSK GAMBIT
  • If Occupy Wall Street Really is The 99%, Then What Does That Make Us? Dreadlocked white drummers, to a surprising extent
  • West Slayter Hill Tailgate Association
  • The Gallery of Crash Dump Screens
  • Signs That Make No Sense
  • Everything You Need to Know About Oliver Cromwell — Free Download for Term Papers and School Reports
    • Crom-Fu, a mixed martial art fighting technique invented by Oliver Cromwell
  • Brilliant movie concepts overlooked by Hollywood — "The Odyssey" and "Iliad" as remakes of "Gilligan's Island", "Battlestar Potemkin", "Show White and the Magnificent Seven Dwarves", Jane Austen as a spy-assassin, and worse.
  • Some Thoughts About Writing Technical Material: In no particular order, as they occur....
  • The Fingerbox — the history and technology of this device.
  • Sarah Palin baby name and advice generator
  • Alternative History of the Beatles
  • If Sigmund Freud had written The Cat in the Hat
  • A Comparison of Various News Sources
    (Statistical analysis showing that Fox "News" is as worthless as Pravda)
  • Useful Latin Phrases
  • Guaranteed Super Lucky Numbers
  • The Dead Bunny Hat Page
  • How Everything Connects Through Movies
  • TCP/IP Haikus
  • Cryptographic Haikus
  • The Theology of Santa Claus
  • How to Brew Your Own Beer and Mead
    • Mead background
    • How to brew mead
    • How to brew beer
    • Brewing in ancient history
    • Belgian Beers and Brussels Cafes

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