justtrying

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-08-23 16:09:39

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2025-08-23 16:12:10

Absolute Paths

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Changing position

Time of First Successful Submission: 2025-08-23 16:15:47

Changing to an Absolute Path

Time of First Successful Submission: 2025-08-23 16:16:29

Relative Paths

Time of First Successful Submission: 2025-08-23 16:18:20

Cat

Time of First Successful Submission: 2025-08-24 03:59:00

Ls

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Ls All

Time of First Successful Submission: 2025-08-24 04:05:26

Find

Time of First Successful Submission: 2025-08-24 04:21:57

Piping Echo

Time of First Successful Submission: 2025-08-29 04:33:04

Piping Stdout

Time of First Successful Submission: 2025-08-29 04:33:44

Piping Stdin

Time of First Successful Submission: 2025-08-29 04:42:10

Start Here

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Using the Terminal

Time of First Successful Submission: 2025-08-23 15:10:38

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-23 15:15:24

Using the GUI Desktop

Time of First Successful Submission: 2025-08-23 15:16:50

Pasting into the Desktop

Time of First Successful Submission: 2025-08-23 15:18:55

Restarting Challenges

Time of First Successful Submission: 2025-08-23 15:43:42

Challenge Programs

Time of First Successful Submission: 2025-08-23 15:46:39

The Flag File

Time of First Successful Submission: 2025-08-23 15:48:25

Using Privileged Mode

Time of First Successful Submission: 2025-08-23 15:52:43

Persistent Home Directories - One

Time of First Successful Submission: 2025-08-23 16:00:18

Persistent Home Directories - Two

Time of First Successful Submission: 2025-08-23 16:00:49

Linux Luminarium

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Computing 101

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Your First Register

Time of First Successful Submission: 2025-09-02 14:49:49

Your First Syscall

Time of First Successful Submission: 2025-09-02 14:53:55

Exit Codes

Time of First Successful Submission: 2025-09-02 14:58:39

Building Executables

Time of First Successful Submission: 2025-09-02 15:06:40

Moving Between Registers

Time of First Successful Submission: 2025-09-02 15:09:58

Tracing Syscalls

Time of First Successful Submission: 2025-09-03 13:02:47

Starting GDB

Time of First Successful Submission: 2025-09-03 13:04:45

Starting Programs in GDB

Time of First Successful Submission: 2025-09-03 13:06:21

Loading From Memory

Time of First Successful Submission: 2025-09-03 13:48:42

More Loading Practice

Time of First Successful Submission: 2025-09-03 13:49:50

Dereferencing Pointers

Time of First Successful Submission: 2025-09-03 13:57:53

Dereferencing Yourself

Time of First Successful Submission: 2025-09-03 13:59:21

Dereferencing with Offsets

Time of First Successful Submission: 2025-09-03 14:01:34

Stored Addresses

Time of First Successful Submission: 2025-09-03 14:19:32

Double Dereference

Time of First Successful Submission: 2025-09-03 14:22:53

Triple Dereference

Time of First Successful Submission: 2025-09-03 14:23:50

Writing Output

Time of First Successful Submission: 2025-09-03 14:57:19

Chaining Syscalls

Time of First Successful Submission: 2025-09-03 14:58:31

Writing Strings

Time of First Successful Submission: 2025-09-03 15:01:06

Reading Data

Time of First Successful Submission: 2025-09-03 15:04:20

set-register

Time of First Successful Submission: 2025-09-05 14:27:42

set-multiple-registers

Time of First Successful Submission: 2025-09-05 15:29:16

add-to-register

Time of First Successful Submission: 2025-09-05 15:30:52

linear-equation-registers

Time of First Successful Submission: 2025-09-05 15:33:38

integer-division

Time of First Successful Submission: 2025-09-05 15:37:24

modulo-operation

Time of First Successful Submission: 2025-09-05 15:38:52

set-upper-byte

Time of First Successful Submission: 2026-01-09 09:31:03

efficient-modulo

Time of First Successful Submission: 2026-01-09 09:46:00

byte-extraction

Time of First Successful Submission: 2026-01-09 09:56:13

bitwise-and

Time of First Successful Submission: 2026-01-09 10:02:35

check-even

Time of First Successful Submission: 2026-01-09 10:19:10

memory-read

Time of First Successful Submission: 2026-01-10 11:15:48

memory-write

Time of First Successful Submission: 2026-01-10 11:17:39

memory-increment

Time of First Successful Submission: 2026-01-10 11:24:47

byte-access

Time of First Successful Submission: 2026-01-13 13:56:49

memory-size-access

Time of First Successful Submission: 2026-01-13 13:58:33

little-endian-write

Time of First Successful Submission: 2026-01-13 14:13:25

memory-sum

Time of First Successful Submission: 2026-01-13 14:19:15

stack-subtraction

Time of First Successful Submission: 2026-01-13 14:21:00

swap-stack-values

Time of First Successful Submission: 2026-01-13 14:22:13

average-stack-values

Time of First Successful Submission: 2026-01-13 14:31:30

absolute-jump

Time of First Successful Submission: 2026-01-14 15:24:15

relative-jump

Time of First Successful Submission: 2026-01-14 15:39:18

jump-trampoline

Time of First Successful Submission: 2026-01-14 15:40:34

conditional-jump

Time of First Successful Submission: 2026-01-14 16:05:40

indirect-jump

Time of First Successful Submission: 2026-01-14 17:06:33

average-loop

Time of First Successful Submission: 2026-01-14 17:31:13

count-non-zero

Time of First Successful Submission: 2026-01-15 14:39:43

string-lower

Time of First Successful Submission: 2026-01-24 13:36:35

most-common-byte

Time of First Successful Submission: 2026-01-26 14:04:42

Debugging Programs

Time of First Successful Submission: 2026-01-27 11:45:20

Inspecting Registers

Time of First Successful Submission: 2026-01-27 11:47:08

Examining Memory

Time of First Successful Submission: 2026-01-27 12:46:49

Setting Breakpoints

Time of First Successful Submission: 2026-01-27 13:09:47

GDB Scripting

Time of First Successful Submission: 2026-01-27 13:44:56

Modifying Data

Time of First Successful Submission: 2026-01-27 14:09:04

Modifying Execution

Time of First Successful Submission: 2026-01-29 08:49:17

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

Time of First Successful Submission: 2026-01-30 10:49:21

Concurrent GET Server

Time of First Successful Submission: 2026-01-30 12:05:32

Concurrent POST Server

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Web Server

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Playing With Programs

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What's the password?

Time of First Successful Submission: 2025-09-25 11:34:38

... and again!

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Newline Troubles

Time of First Successful Submission: 2025-09-25 11:41:20

Reasoning about files

Time of First Successful Submission: 2025-09-25 11:45:05

Specifying Filenames

Time of First Successful Submission: 2025-09-25 11:46:21

Binary and Hex Encoding

Time of First Successful Submission: 2026-01-31 11:27:50

More Hex

Time of First Successful Submission: 2026-01-31 11:29:59

Decoding Hex

Time of First Successful Submission: 2026-01-31 11:50:17

Decoding Practice

Time of First Successful Submission: 2026-01-31 12:17:38

Encoding Practice

Time of First Successful Submission: 2026-01-31 12:40:06

Hex-encoding ASCII

Time of First Successful Submission: 2026-01-31 12:51:07

Nested Encoding

Time of First Successful Submission: 2026-01-31 13:06:28

Hex-encoding UTF-8

Time of First Successful Submission: 2026-01-31 13:27:26

UTF Mixups

Time of First Successful Submission: 2026-01-31 13:59:00

Modifying Encoded Data

Time of First Successful Submission: 2026-01-31 14:18:35

CybHer Dojo

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Using the Terminal

Time of First Successful Submission: 2025-08-23 15:10:38

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-23 15:15:24

Using the GUI Desktop

Time of First Successful Submission: 2025-08-23 15:16:50

Pasting into the Desktop

Time of First Successful Submission: 2025-08-23 15:18:55

Restarting Challenges

Time of First Successful Submission: 2025-08-23 15:43:42

Getting Help

Time of First Successful Submission: 2025-08-23 15:45:25

Challenge Programs

Time of First Successful Submission: 2025-08-23 15:46:39

The Flag File

Time of First Successful Submission: 2025-08-23 15:48:25

Using Privileged Mode

Time of First Successful Submission: 2025-08-23 15:52:43

Persistent Home Directories - One

Time of First Successful Submission: 2025-08-23 16:00:18

Persistent Home Directories - Two

Time of First Successful Submission: 2025-08-23 16:00:49

Example Dojo

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GCA CTF

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Using the Terminal

Time of First Successful Submission: 2025-08-23 15:10:38

Using the VSCode Workspace

Time of First Successful Submission: 2025-08-23 15:15:24

Using the GUI Desktop

Time of First Successful Submission: 2025-08-23 15:16:50

Pasting into the Desktop

Time of First Successful Submission: 2025-08-23 15:18:55

Restarting Challenges

Time of First Successful Submission: 2025-08-23 15:43:42

Getting Help

Time of First Successful Submission: 2025-08-23 15:45:25

Challenge Programs

Time of First Successful Submission: 2025-08-23 15:46:39

The Flag File

Time of First Successful Submission: 2025-08-23 15:48:25

Using Privileged Mode

Time of First Successful Submission: 2025-08-23 15:52:43

Persistent Home Directories - One

Time of First Successful Submission: 2025-08-23 16:00:18

Persistent Home Directories - Two

Time of First Successful Submission: 2025-08-23 16:00:49