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Python script to submit URLs to Bing search engine
Python program to bulk submit URLs to Bing search engine. This uses the Submission API provided by Bing Webmaster Tools.

Casio G-Shock GWM5610 Watch review
This is my review of my new Casio G-Shock GWM5610 solar watch.

How to find the IP address of the email sender in Gmail, Yahoo mail, Hotmail, AOL, Outlook Express, etc.
How to find the IP address of the email sender in Gmail, Yahoo mail, Hotmail, AOL, Outlook Express.

How to check Facebook Login History and Activity
Blog post about checking who last used your Facebook account, along with the IP address, browser details and locations.

How to Install Python 3.9 on the Raspberry Pi
Tutorial on how to Install Python 3.9 on the Raspberry Pi. This will be updated whenever there is a new version or Python or Raspbian.

How to see your Yahoo! Mail log activity
This is how to check if your Yahoo! Mail has been compromised or hacked. You can see the history of the last 20 login attempts

How to force Comcast IP address to change
How to force Comcast IP address to change when using a Linksys router

How to send text messages for free from your email account
How to send SMS through email. This works only in the United States and Canada, and will be extended to other countries soon.

How to secure your Facebook account with two-factor authentication
Tutorial on how to secure your Facebook account using two-factor authentication or 2FA.

Cryptocurrency Heists in 2022
Blog post about cryptocurrency heists in 2022. This will be updated through the end of 2022.

How to install Python 3.10.5 from source
Tutorial on how to install Python 3.10.5 from source. configure, make, make install.

How to send email from Gmail with PHP
Tutorial on how to send email from a Gmail account using Google's SMTP server and Postfix.

Install Visual Studio Code for Python development
Tutorial on how to install Visual Studio Code for development in Python. This includes installing of plugins.

Working with JSON in Python
Working with JSON in Python

ACSL Intermediate Division
ACSL Intermediate Division

Kill A Watt Energy Monitor Review
Review of Kill-A-Watt energy monitor. I have had mine for over a decade.

10 Gallon Blue Diamond Shrimp Tank
10 Gallon Blue Diamond Shrimp Tank

Wyze Outdoor Plug Review
Wyze Outdoor Plug Review

Python script to show live video using RTSP
Python script to show live video using RTSP

How to Install git 2.32 on Raspberry Pi
How to Install git 2.32 on Raspberry Pi

ACSL Junior Division
ACSL Junior Division

Make FiOS gateway use OpenDNS
Make FiOS gateway use OpenDNS

How to Rename Local and Remote Git Branch
How to Rename Local and Remote Git Branch

Full-text Search using Postgres
Full-text Search using Postgres

American Computer Science League
American Computer Science League

Format USB flash drive using dd
Format USB flash drive using dd

Parse HTML, populate DataFrame and export to CSV
Parse HTML, populate DataFrame and export to CSV

How to Install Raspbian on Raspberry Pi Zero W
Tutorial on installing Raspbian Jessie on Raspberry Pi Zero W. This also works for other Raspberry Pi versions.

Nobel prize winner in Economics uses Python
2018 Nobel prize winner in Economics uses Python and Jupyter notebook

Google Search Console's Fetch & Submit
Google will use only their Search Console Fetch & Submit

2 Gallon Jarrarium / Planted Jar
Our journal on starting a 2 gallon natural planted jar or jarrarium.

10 Gallon Natural Planted Tank
Our blog on starting and running a 10 gallon natural planted aquarium.

How to Unarchive Multiple .7z Files
How to Extract Multiple .7z Files Using the Command Line

Python script to tweet your Internet speed
Python script to tweet your Internet speed

Parsing Web Server Logs
Different ways of parsing web server logs. Finding unique IP addresses of visitors.

Bash script to reconnect Wi-Fi connection in Raspberry Pi
Bash script to reconnect Wi-Fi connection in Raspberry Pi

Various MySQL commands
MySQL commands for the client command line

Change the server date and time in CentOS
Change the server date and time in CentOS

20 Gallon Walstad Method Natural Planted Tank
Our journal on starting and running a 20 gallon Walstad method or el natural planted aquarium.

Patching glibc CVE-2015-7547 Vulnerability
How to patch the glibc vulnerability CVE-2015-7547 in CentOS, Ubuntu and Debian

Disabling SELinux in CentOS 7
Nginx does not run with SELinux enabled. I had to disable it to allow the nginx process to run.

Stop Photos app from opening automatically when an iPhone or iPad is connected to the Mac
How do I disable the Photos app from automatically opening when my iPhone or iPad is connected to the Mac.

DIY TV Antenna for HD and SD Channels
Our experiment with creating a DIY TV antenna to get HD channels

Generate self-signed SSL certificate in one line
How to generate self-signed SSL certificate in one command. This generates ssl certificate and key.

Stop Image Capture from opening when a new device is connected
How do I disable the Image Capture app from automatically opening when my iPhone or iPad is connected to the Mac.

Install Ruby on Rails from source
Article about installing Ruby from source and Rails for Mac OS, Debian and CentOS.

How to Package Amazon Frogbit (Limnobium laevigatum) Aquarium Plants
Quick write-up on how to pack Amazon Frogbit aquarium plants for shipping via USPS or to a local buyer.

Returning HTTP 503 using PHP (maintenance page)
Returning HTTP 503 using PHP (maintenance page)

Convert Binary Numbers to Decimal and vice-versa
Convert Binary Numbers to Decimal and vice-versa

How to find UDID of iPhone, iPad or iPod Touch
Short tutorial on how to find the unique device identifier (UDID) of your iOS device - iPhone, iPod Touch or iPad

Controllable Christmas Lights using Raspberry Pi & RGB LED Strip
Web controllable Christmas lights using Raspberry Pi and RGB LED strip. You can change the LED strip colours.

How to fix the shellshock bash bug vulnerability in bash shell
How to fix the shellshock bash bug vulnerability in bash shell

How to install Windows 7 on VirtualBox
Guide on how to install Windows 7 on VirtualBox virtual machine.

Mac OS X Terminal: Keyboard word shortcut
Mac Terminal shortcut to jump from word to word

RubyConf 2013
Arul's experiences at RubyConf 2013 in Miami Beach, Florida.

Watch Starwars on the Terminal
Watch Starwars on the Terminal. Using Mac Terminal, PuTTY or any Linux/Unix console.

Profile Picture, Cover Photo and Other Image Dimensions
Comprehensive list of dimensions of photos and images in Facebook, Twitter, Google+, LinkedIn and major social media websites.

VirtualBox: How to access guest (CentOS) webserver from the host (Mac OS X) on NAT
This is an article how to access guest (CentOS) webserver from the host (Mac OS X) using NAT and Host-Only networks.

Samsung Series 3 laptop: How to get BIOS boot menu to show DVD and USB devices
How to get boot menu to show DVD and USB devices in Samsung Series 3 laptops

How to reset your Verizon FiOS router password
Basic tutorial on reseting your Verizon FiOS router password to the default one.

How to reset admin password on Mac OS X
Tutorial to reset the admin password on Mac OS X (Leopard or Snow Leopard).

Scammed? How to complain if you are a victim of fraud on the Internet.
Resources to complain to if scammed on the Internet. List of phone numbers, URLs and addresses of law enforcement agencies.

How to create an SSH connection without a password
This tutorial shows you How to create an SSH connection without a password. Useful for ssh, scp and cron jobs that require password-less logins.

I cannot insert a CD or DVD into my MacBook's slot load SuperDrive
How to insert a CD/DVD into a troublesome superdrive in your MacBook

HISTORY shell variable management in Unix/Linux
HISTORY shell variable management in Unix/Linux.

Convert docx to doc in Mac OS X Snow Leopard or Leopard
Convert docx to doc in Mac OS X Snow Leopard or Leopard

How to eject CD/DVD from your MacBook or iMac
How to eject CD/DVD from your MacBook or iMac. drutils, diskutil, drag-drop to trash can

How to rename multiple files in Unix or Linux
How to rename multiple files in Unix or Linux from the prompt.

Play Prince of Persia on Ubuntu Linux using DOSBox
How to play Prince of Persia and other games on Ubuntu Linux using DOSBox.

Detect iPad in PHP, Perl, JavaScript, Nginx, Apache, Lighttpd
How to detect if the visitor is using an iPad. Programming in PHP, Perl and JavaScript. Server configuration for nginx, apache, lighttpd. .

Copy specified directories from one location to another
Copy specified directories from one location to another

Perl and MySQL using DBI
Perl and MySQL using DBI

My Obfuscated Signature
My Obfuscated Signature

Perl one-liners
Perl one-liners

Installing Ubuntu Linux in VirtualBox
Installing Ubuntu Linux in VirtualBox. Linux guest on Windows host.

Cron Task Scheduling
How to schedule tasks with cron.

Quick references for tar, gzip and bzip2
Quick reference commands to using tar, gzip and bzip2. Archive and uncompress tar, tar.gz and tar.bz2 files.

Useful Chat URLs for iPhone and iPod Touch users
Important and useful Chat URLs for iPhone and iPod Touch users. .

(128)Network is unreachable: connect to listener
(128)Network is unreachable: connect to listener. Apache error.

Unix find command with examples and common usage
Unix find command with examples and common usage.

Configuring Nginx to forward PHP requests to Apache mod_php
HOWTO: Nginx to forward PHP requests to Apache mod_php.

How to forward Nginx Perl requests to Apache mod_cgi
How to forward Perl (.pl) requests in Nginx web server to Apache mod_cgi.

Configuring Nginx to include PHP FastCGI support
How to configure Nginx to include PHP FastCGI support.

Configuring Nginx web server
Configuring Nginx web server. nginx.conf tweaks.

Installing Nginx web server
Installing Nginx web server for Debian/Ubuntu/RedHat Linux.

How to rescue your files if Windows is busted
Rescue your important files if Windows is corrupted. Burn to CD or transfer to a remote location using System Rescue CD, Scp,Xfburn,gparted.

Solaris Commands
Some frequently used Solaris commands. Useful for System Administrators.

Hacking your Linksys WRT54G Wireless-G Router with DD-WRT firmware
How to hack the Linksys WRT54G or WRT54GL Wireless-G router and install DD-WRT firmware.

How to remove CTRL M characters
This is a tutorial on how to remove the Control-M character ^M at the end of line. This usually happens when you save the file in Windows.

How to use the HTTP commands GET and HEAD
How to use GET and HEAD commands on the command line.

How to compress your webpages
How to compress webpages using gzip or deflate. Apache, Nginx, Lighttpd web servers.

Test for SSL version
How to test for SSL version.

Shell script to read several conf files and create archives
Shell script to read several conf files and create archives

Display disk space, available and space used
Display disk space, available and space used

How to save a document or webpage as PDF
How to save a document DOC, PUB, webpage, etc as PDF. .

apt-get and dpkg commands in Debian
Some useful apt-get commands and resources.

How to handle X11 Forwarding using SSH
How to handle X11 Forwarding using SSH and Xming.

How to install Ubuntu 7.10 Edition v1.0 on your Sony PSP
Install Ubuntu 7.10 version 1.0 on your Sony PSP.

How to set up your own website with domain hosting
How to get domain hosting and set up your own web site.

Customize Your Bash Prompt
Customize Your Bash Prompt

Windows Hacks, Tips and Tricks
This page contains Windows hacks and many tips on how to do things that are traditionally not displayed in the usual options in Windows.

SSI Includes
How to embed CGI files and other files in HTML files using SSI includes.

.htaccess tutorial with mod_rewrite
Using and editing .htaccess file for configurations. .

Installing X Window on Debian
Installing X Window and Window Manager on Debian. Xorg.

Installing a webcam in Linux
Installing a webcam and setting up a live webcam site in Debian GNU/Linux.

My Linux Settings and Configuration Files
My Linux box settings are listed here, they include configuration files tcshrc, xmodmap, grub.conf, init.d files.

Changing file system from Ext2 to Ext3 in Debian
How to upgrade file system in Linux, How to install Debian Linux on your computer.

Installing Multimedia in Debian
Multimedia, Infrared, Bluetooth in Debian GNU/Linux.

File transfer using Linux or Unix
File transfer programs to use in Linux or Unix.

Installing the networking in Debian
Installing the networking in Debian Linux. .

Installing Applications and Servers in Debian GNU/Linux
Installing Applications and Servers in Debian Linux.

How to uninstall the Microsoft Java Virtual Machine (JVM)
How to uninstall the Microsoft Java Virtual Machine (JVM).

Upgrading the kernel in Debian
Upgrading the kernel to 2.6.16.x in Debian Linux.

How to Dual Boot with Linux and Windows XP
How to dual boot Windows XP with Linux. How to remove Grub and LILO.

How to change boot sequence between Windows and Linux
Changing boot sequence between Windows and Linux.

How to install Debian GNU/Linux on your computer
How to install Debian GNU/Linux on your computer.

Cell phone secrets and tricks for Sony Ericsson T610
How to get more out of your Sony Ericsson T610 cell phone: unlocking, tricks, shortcuts, IMEA code.

Emacs Commands
Summary of essential emacs commands. Useful for beginners and regular users.

Important and useful Linux and Unix commands
Some important and useful commands I learnt while installing Linux.