jaysongong

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-12-17 07:53:07

Command Arguments

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Command History

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The Root Path

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Absolute Paths

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Changing position

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Changing to an Absolute Path

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Relative Paths

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Cat

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Ls

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Ls All

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Find

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Piping Echo

Time of First Successful Submission: 2025-12-23 06:55:49

Piping Stdout

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Piping Stdin

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Start Here

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Using the Terminal

Time of First Successful Submission: 2025-12-17 06:23:49

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-17 06:28:28

Using the GUI Desktop

Time of First Successful Submission: 2025-12-17 06:31:14

Pasting into the Desktop

Time of First Successful Submission: 2025-12-17 06:32:52

Restarting Challenges

Time of First Successful Submission: 2025-12-17 06:50:32

Challenge Programs

Time of First Successful Submission: 2025-12-17 07:44:08

The Flag File

Time of First Successful Submission: 2025-12-17 07:45:52

Using Privileged Mode

Time of First Successful Submission: 2025-12-17 07:46:55

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-17 07:49:43

Persistent Home Directories - Two

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Linux Luminarium

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Computing 101

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Your First Register

Time of First Successful Submission: 2025-12-29 03:05:11

Your First Syscall

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Exit Codes

Time of First Successful Submission: 2025-12-29 03:16:56

Building Executables

Time of First Successful Submission: 2025-12-29 03:29:31

Moving Between Registers

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Tracing Syscalls

Time of First Successful Submission: 2025-12-30 06:02:15

Starting GDB

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Starting Programs in GDB

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Loading From Memory

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More Loading Practice

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Dereferencing Pointers

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Dereferencing Yourself

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Dereferencing with Offsets

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Stored Addresses

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Double Dereference

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Triple Dereference

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Writing Output

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Chaining Syscalls

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Writing Strings

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Reading Data

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set-register

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set-multiple-registers

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add-to-register

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linear-equation-registers

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integer-division

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modulo-operation

Time of First Successful Submission: 2025-12-30 09:33:42

set-upper-byte

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efficient-modulo

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byte-extraction

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bitwise-and

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check-even

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memory-read

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memory-write

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memory-increment

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byte-access

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memory-size-access

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little-endian-write

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memory-sum

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stack-subtraction

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swap-stack-values

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average-stack-values

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absolute-jump

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relative-jump

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jump-trampoline

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conditional-jump

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indirect-jump

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average-loop

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count-non-zero

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string-lower

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most-common-byte

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Debugging Programs

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Inspecting Registers

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Examining Memory

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Setting Breakpoints

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GDB Scripting

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Modifying Data

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Modifying Execution

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Broken Functions

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Exit

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Socket

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Bind

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Listen

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Accept

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Static Response

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Dynamic Response

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Iterative GET Server

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Concurrent GET Server

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Concurrent POST Server

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Web Server

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Playing With Programs

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What's the password?

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... and again!

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Newline Troubles

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Reasoning about files

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Specifying Filenames

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Binary and Hex Encoding

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CybHer Dojo

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Using the Terminal

Time of First Successful Submission: 2025-12-17 06:23:49

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-17 06:28:28

Using the GUI Desktop

Time of First Successful Submission: 2025-12-17 06:31:14

Pasting into the Desktop

Time of First Successful Submission: 2025-12-17 06:32:52

Restarting Challenges

Time of First Successful Submission: 2025-12-17 06:50:32

Getting Help

Time of First Successful Submission: 2025-12-17 06:52:51

Challenge Programs

Time of First Successful Submission: 2025-12-17 07:44:08

The Flag File

Time of First Successful Submission: 2025-12-17 07:45:52

Using Privileged Mode

Time of First Successful Submission: 2025-12-17 07:46:55

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-17 07:49:43

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-17 07:50:55

Example Dojo

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GCA CTF

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Using the Terminal

Time of First Successful Submission: 2025-12-17 06:23:49

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-17 06:28:28

Using the GUI Desktop

Time of First Successful Submission: 2025-12-17 06:31:14

Pasting into the Desktop

Time of First Successful Submission: 2025-12-17 06:32:52

Restarting Challenges

Time of First Successful Submission: 2025-12-17 06:50:32

Getting Help

Time of First Successful Submission: 2025-12-17 06:52:51

Challenge Programs

Time of First Successful Submission: 2025-12-17 07:44:08

The Flag File

Time of First Successful Submission: 2025-12-17 07:45:52

Using Privileged Mode

Time of First Successful Submission: 2025-12-17 07:46:55

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-17 07:49:43

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-17 07:50:55