Welcome!

This is a random assortment of stuff from my University coursework and internship.

Code

C

Basic I/O in C	Download | View
File I/O in C	Download | View
Unix Cat Command Simulator in C	Download | View
Integer Sorter in C	Download | View
enigma.c - Simulates the Enigma Machine	Download | View
enigma.h - Header File for enigma.c	Download | View
sockets.c - Opens / Binds a socket	Download | View
sockets.h - Header File for sockets.c	Download | View
chat_server.c - Creates a simple chat session using sockets.c	Download | View
chat_server.h - Header File for chat_server.c	Download | View
Simple Shell in C	Download | View

Java

Basic Arithmetic in Java	Download | View
Class to build a simple inventory of books	Download | View
Program to test BookInventory.java	Download | View
Class to 'build' books for BookInventory.java and UnsortedBookList.java	Download | View
Converts octal numbers to decimal numbers in Java	Download | View
Class for error handling of empty list exceptions	Download | View
Converts characters to 'l3375P3@k' equivalents	Download | View
Simulates Conway's Game of Life	Download | View
Creates and updates a linked list in Java	Download | View
Program to test LinkedList.java	Download | View
Simple Mastermind game in Java	Download | View
Examples of using Java's built-in Math class	Download | View
Generic Menu class in Java	Download | View
Generates a numerology report based on birthday	Download | View
Converts decimal numbers to octal	Download | View
Determines if a number is a Perfect number	Download | View
Calculates postfix notation expressions in Java	Download | View
Simple example of recursive functions in Java	Download | View
Calculates a shipping cost in Java	Download | View
Identifies "sexy primes" using Java	Download | View
Program to demo the implementation of many basic Java functions	Download | View
Program to test SimpleList.java	Download | View
Implements an array based stack using Java	Download | View
Program to test Stack.java	Download | View
Very simple Sudoku checker in Java	Download | View
Creates a search tree using Java	Download | View
Program to test tree.java	Download | View
Creates an unsorted list of books	Download | View
Program to test UnsortedBookList.java	Download | View
Program to identify Lucas numbers using Java	Download | View

Perl

Basic Arithmetic in Perl	Download | View
Number Guessing Game in Perl	Download | View
Loop to read and add numbers	Download | View
Basic Output in Perl	Download | View
Basic Input in Perl	Download | View
Academy Awards Voting Simulator in Perl	Download | View
Binary to Decimel Converter in Perl	Download | View
Scrape Box Office Results from RottenTomatoes	Download | View
Run finger command with soundex to account for misspellings	Download | View
Run the Unix 'last' command and summarize output	Download | View
Lottery Numbers Generator in Perl	Download | View
Scanner / Interpreter for a simple fake language written in Perl	Download | View
Break apart a five digit number in Perl	Download | View
Identify a palindrome in Perl	Download | View
Identify a palindrome using a loop in Perl	Download | View
Send Email Using Perl	Download | View
Send Email Using a Perl CGI File	Download | View
Analyze a Weblog Using Perl	Download | View
Build a fake shadow file Using Perl	Download | View
Simple dictionary attack against unsalted MD5 hashes	Download | View
Simple dictionary attack against salted MD5 hashes	Download | View

Python

Basic I/O in Python	Download | View
Bubble Sort Using Python	Download | View
Process Scheduler in Python	Download | View
Test Scheduling Algorithm Performance using Python	Download | View

Other

Example Makefile	Download | View
Example .vimrc	Download | View
Family Tree Program in the Lisp programming language	Download | View
Coke Case Mastermind Simulator in the Prolog programming language	Download | View

Documentation

Create a list of all mailboxes on a server, sorted by size on disk

Get-MailboxStatistics -Server '<server name>' | where {$_.ObjectClass -eq “Mailbox”} | Sort-Object TotalItemSize -Descending | ft @{label=”User”;expression={$_.DisplayName}},@{label=”Total Size (MB)”;expression={$_.TotalItemSize.Value.ToMB()}} -auto >> “c:\<output file name>.txt”

Enable RDP access via psexec

1. Download the PsTools Suite from here.
2. Open a command prompt Window, and open the PsTools directory.
3. Run the following three commands
   • psexec \\<hostname> reg add "hklm\system\currentcontrolset\control\terminal server" /f /v fDenyTSConnections /t REG_DWORD /d 0
   • psexec \\<hostname> netsh firewall set service remoteadmin enable
   • psexec \\<hostname> netsh firewall set service remotedesktop enable
   where <hostname> is the name of the machine you are trying to enable RDP access to.

NOTE - These steps must be done a machine that is on the same domain and network as the target machine, using an account that will have admin rights on the target machine.

Miscellaneous SQL Queries

View the size on disk for all databases: SELECT table_schema AS "DATABASE NAME", SUM(data_length + index_length) / 1024 / 1024 AS "Size (MB)" FROM information_schema.TABLES GROUP BY table_schema;

Check if logging of slow queries is enabled: mysqladmin var | grep log_slow_queries

Enable logging of slow queries:

1. Open the MySQL config file: sudo vim /etc/mysql/my.cnf
2. In the mysqld section add:
   1. long_query_time = <time variable>
   2. log-slow-queries = /var/log/mysql/mysql-slow.log
3. Open the log file: sudo vim /var/log/mysql/mysql-slow.log

Optimize all tables in all databases: mysqlcheck -u USERNAME -p -o --all-databases