TheOneReborn

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1 / 202 22519 / 22791


Triple Dereference

Time of First Successful Submission: 2026-02-03 01:47:02


Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-02-01 09:52:31

Command Arguments

Time of First Successful Submission: 2026-02-01 09:53:39

Command History

Time of First Successful Submission: 2026-02-01 09:54:57

The Root Path

Time of First Successful Submission: 2026-02-01 10:10:16

Absolute Paths

Time of First Successful Submission: 2026-02-01 10:11:30

Changing position

Time of First Successful Submission: 2026-02-01 10:13:23

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-01 10:15:32

Relative Paths

Time of First Successful Submission: 2026-02-01 10:19:01

Cat

Time of First Successful Submission: 2026-02-01 10:34:02

Ls

Time of First Successful Submission: 2026-02-01 10:41:45

Ls All

Time of First Successful Submission: 2026-02-01 10:48:09

Find

Time of First Successful Submission: 2026-02-01 11:00:33

Piping Echo

Time of First Successful Submission: 2026-02-01 14:43:29

Piping Stdout

Time of First Successful Submission: 2026-02-01 14:45:16

Piping Stdin

Time of First Successful Submission: 2026-02-01 15:03:57


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-01 09:00:39

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-01 09:03:50

Using the GUI Desktop

Time of First Successful Submission: 2026-02-01 09:08:59

Pasting into the Desktop

Time of First Successful Submission: 2026-02-01 09:12:05

Restarting Challenges

Time of First Successful Submission: 2026-02-01 09:18:43

Challenge Programs

Time of First Successful Submission: 2026-02-01 09:22:00

The Flag File

Time of First Successful Submission: 2026-02-01 09:24:23

Using Privileged Mode

Time of First Successful Submission: 2026-02-01 09:30:43

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-01 09:46:11

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-01 09:47:20


Linux Luminarium

128 / 128 1869 / 32379


Intro to Commands

Time of First Successful Submission: 2026-02-01 09:52:31

Intro to Arguments

Time of First Successful Submission: 2026-02-01 09:53:39

Command History

Time of First Successful Submission: 2026-02-01 09:54:57

The Root

Time of First Successful Submission: 2026-02-01 10:10:16

Program and absolute paths

Time of First Successful Submission: 2026-02-01 10:11:30

Position thy self

Time of First Successful Submission: 2026-02-01 10:13:23

Position elsewhere

Time of First Successful Submission: 2026-02-01 10:15:32

implicit relative paths, from /

Time of First Successful Submission: 2026-02-01 10:19:01

explicit relative paths, from /

Time of First Successful Submission: 2026-02-01 10:21:48

implicit relative path

Time of First Successful Submission: 2026-02-01 10:25:29

home sweet home

Time of First Successful Submission: 2026-02-01 10:31:07

cat: not the pet, but the command!

Time of First Successful Submission: 2026-02-01 10:34:02

catting absolute paths

Time of First Successful Submission: 2026-02-01 10:34:53

more catting practice

Time of First Successful Submission: 2026-02-01 10:35:56

grepping for a needle in a haystack

Time of First Successful Submission: 2026-02-01 10:37:00

comparing files

Time of First Successful Submission: 2026-02-01 10:40:28

listing files

Time of First Successful Submission: 2026-02-01 10:41:45

touching files

Time of First Successful Submission: 2026-02-01 10:42:53

removing files

Time of First Successful Submission: 2026-02-01 10:43:47

moving files

Time of First Successful Submission: 2026-02-01 10:45:42

copying files

Time of First Successful Submission: 2026-02-01 10:46:45

hidden files

Time of First Successful Submission: 2026-02-01 10:48:09

An Epic Filesystem Quest

Time of First Successful Submission: 2026-02-01 10:54:51

making directories

Time of First Successful Submission: 2026-02-01 10:57:23

finding files

Time of First Successful Submission: 2026-02-01 11:00:33

linking files

Time of First Successful Submission: 2026-02-01 11:18:35

Learning From Documentation

Time of First Successful Submission: 2026-02-01 11:31:01

Learning Complex Usage

Time of First Successful Submission: 2026-02-01 12:38:07

Reading Manuals

Time of First Successful Submission: 2026-02-01 12:40:59

Searching Manuals

Time of First Successful Submission: 2026-02-01 12:43:44

Searching For Manuals

Time of First Successful Submission: 2026-02-01 13:07:26

Helpful Programs

Time of First Successful Submission: 2026-02-01 13:09:19

Help for Builtins

Time of First Successful Submission: 2026-02-01 13:10:58

Matching with *

Time of First Successful Submission: 2026-02-01 13:16:19

Matching with ?

Time of First Successful Submission: 2026-02-01 13:17:30

Matching with []

Time of First Successful Submission: 2026-02-01 13:22:35

Matching paths with []

Time of First Successful Submission: 2026-02-01 13:24:05

Multiple globs

Time of First Successful Submission: 2026-02-01 13:35:33

Mixing globs

Time of First Successful Submission: 2026-02-01 14:12:55

Exclusionary globbing

Time of First Successful Submission: 2026-02-01 14:15:46

Tab completion

Time of First Successful Submission: 2026-02-01 14:17:47

Multiple options for tab completion

Time of First Successful Submission: 2026-02-01 14:20:10

Tab completion on commands

Time of First Successful Submission: 2026-02-01 14:21:45

Redirecting output

Time of First Successful Submission: 2026-02-01 14:43:29

Redirecting more output

Time of First Successful Submission: 2026-02-01 14:45:16

Appending output

Time of First Successful Submission: 2026-02-01 14:49:59

Redirecting errors

Time of First Successful Submission: 2026-02-01 14:56:46

Redirecting input

Time of First Successful Submission: 2026-02-01 15:03:57

Grepping stored results

Time of First Successful Submission: 2026-02-01 15:06:28

Grepping live output

Time of First Successful Submission: 2026-02-01 15:11:52

Grepping errors

Time of First Successful Submission: 2026-02-01 15:15:35

Filtering with grep -v

Time of First Successful Submission: 2026-02-01 15:24:04

Filtering with sed

Time of First Successful Submission: 2026-02-01 15:26:37

Duplicating piped data with tee

Time of First Successful Submission: 2026-02-01 15:34:20

Process substitution for input

Time of First Successful Submission: 2026-02-01 15:41:38

Writing to multiple programs

Time of First Successful Submission: 2026-02-01 15:49:04

Split-piping stderr and stdout

Time of First Successful Submission: 2026-02-01 15:54:20

Named pipes

Time of First Successful Submission: 2026-02-01 16:10:26

Printing Variables

Time of First Successful Submission: 2026-02-01 16:21:35

Setting Variables

Time of First Successful Submission: 2026-02-01 16:23:22

Multi-word Variables

Time of First Successful Submission: 2026-02-01 16:25:12

Exporting Variables

Time of First Successful Submission: 2026-02-01 16:28:32

Printing Exported Variables

Time of First Successful Submission: 2026-02-01 16:29:24

Storing Command Output

Time of First Successful Submission: 2026-02-01 16:33:15

Reading Input

Time of First Successful Submission: 2026-02-01 16:37:06

Reading Files

Time of First Successful Submission: 2026-02-01 16:40:16

Translating characters

Time of First Successful Submission: 2026-02-01 17:12:24

Deleting characters

Time of First Successful Submission: 2026-02-01 17:14:13

Deleting newlines

Time of First Successful Submission: 2026-02-01 17:16:36

Extracting the first lines with head

Time of First Successful Submission: 2026-02-01 17:18:35

Extracting specific sections of text

Time of First Successful Submission: 2026-02-01 17:35:48

Sorting data

Time of First Successful Submission: 2026-02-01 17:36:58

Listing Processes

Time of First Successful Submission: 2026-02-01 17:50:30

Killing Processes

Time of First Successful Submission: 2026-02-01 17:55:02

Interrupting Processes

Time of First Successful Submission: 2026-02-01 18:00:11

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-01 18:05:30

Suspending Processes

Time of First Successful Submission: 2026-02-01 18:06:59

Resuming Processes

Time of First Successful Submission: 2026-02-01 18:09:53

Backgrounding Processes

Time of First Successful Submission: 2026-02-01 18:34:31

Foregrounding Processes

Time of First Successful Submission: 2026-02-01 18:36:38

Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-01 18:37:59

Process Exit Codes

Time of First Successful Submission: 2026-02-01 18:40:47

Becoming root with su

Time of First Successful Submission: 2026-02-01 20:49:50

Other users with su

Time of First Successful Submission: 2026-02-01 20:51:00

Cracking passwords

Time of First Successful Submission: 2026-02-01 21:00:56

Using sudo

Time of First Successful Submission: 2026-02-01 21:06:44

Changing File Ownership

Time of First Successful Submission: 2026-02-02 04:01:13

Groups and Files

Time of First Successful Submission: 2026-02-02 04:04:43

Fun With Groups Names

Time of First Successful Submission: 2026-02-02 04:06:44

Changing Permissions

Time of First Successful Submission: 2026-02-02 04:14:01

Executable Files

Time of First Successful Submission: 2026-02-02 04:16:20

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-02 04:32:23

Permissions Setting Practice

Time of First Successful Submission: 2026-02-02 04:41:25

The SUID Bit

Time of First Successful Submission: 2026-02-02 04:53:07

Chaining with Semicolons

Time of First Successful Submission: 2026-02-02 04:56:12

Building on Success

Time of First Successful Submission: 2026-02-02 04:58:19

Handling Failure

Time of First Successful Submission: 2026-02-02 05:00:41

Your First Shell Script

Time of First Successful Submission: 2026-02-02 05:08:51

Redirecting Script Output

Time of First Successful Submission: 2026-02-02 10:25:22

Executable Shell Scripts

Time of First Successful Submission: 2026-02-02 10:27:48

Understanding Shebangs

Time of First Successful Submission: 2026-02-02 10:34:20

Scripting with Arguments

Time of First Successful Submission: 2026-02-02 10:37:47

Scripting with Conditionals

Time of First Successful Submission: 2026-02-02 10:45:03

Scripting with Default Cases

Time of First Successful Submission: 2026-02-02 11:02:20

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-02-02 11:06:56

Reading Shell Scripts

Time of First Successful Submission: 2026-02-02 11:12:06

Launching Screen

Time of First Successful Submission: 2026-02-02 11:16:57

Detaching and Attaching

Time of First Successful Submission: 2026-02-02 11:24:28

Finding Sessions

Time of First Successful Submission: 2026-02-02 12:30:31

Switching Windows

Time of First Successful Submission: 2026-02-02 12:32:59

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-02-02 12:50:00

Switching Windows (tmux)

Time of First Successful Submission: 2026-02-02 12:53:56

The PATH Variable

Time of First Successful Submission: 2026-02-02 12:59:11

Setting PATH

Time of First Successful Submission: 2026-02-02 13:05:19

Finding Commands

Time of First Successful Submission: 2026-02-02 13:11:12

Adding Commands

Time of First Successful Submission: 2026-02-02 13:22:26

Hijacking Commands

Time of First Successful Submission: 2026-02-02 13:30:51

Bashrc Backdoor

Time of First Successful Submission: 2026-02-02 13:37:01

Sniffing Input

Time of First Successful Submission: 2026-02-02 14:33:58

Overshared Directories

Time of First Successful Submission: 2026-02-02 14:43:47

Tricky Linking

Time of First Successful Submission: 2026-02-02 15:20:40

Sniffing Process Arguments

Time of First Successful Submission: 2026-02-02 15:23:06

Snooping on Configurations

Time of First Successful Submission: 2026-02-02 15:26:19

The Fork Bomb

Time of First Successful Submission: 2026-02-02 15:44:39

Disk-Space Doomsday

Time of First Successful Submission: 2026-02-02 15:48:52

rm -rf /

Time of First Successful Submission: 2026-02-02 15:54:50

Life after rm -rf /

Time of First Successful Submission: 2026-02-02 16:17:55

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-02-02 16:21:41


Computing 101

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Your First Register

Time of First Successful Submission: 2026-02-03 00:08:00

Your First Syscall

Time of First Successful Submission: 2026-02-03 00:12:43

Exit Codes

Time of First Successful Submission: 2026-02-03 00:15:06

Building Executables

Time of First Successful Submission: 2026-02-03 00:28:29

Moving Between Registers

Time of First Successful Submission: 2026-02-03 00:33:35

Loading From Memory

Time of First Successful Submission: 2026-02-03 01:16:20

More Loading Practice

Time of First Successful Submission: 2026-02-03 01:17:58

Dereferencing Pointers

Time of First Successful Submission: 2026-02-03 01:21:17

Dereferencing Yourself

Time of First Successful Submission: 2026-02-03 01:25:53

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-03 01:32:16

Stored Addresses

Time of First Successful Submission: 2026-02-03 01:41:13

Double Dereference

Time of First Successful Submission: 2026-02-03 01:45:37

Tracing Syscalls

Time of First Successful Submission: 2026-02-03 00:42:01

Starting GDB

Time of First Successful Submission: 2026-02-03 00:43:43

Starting Programs in GDB

Time of First Successful Submission: 2026-02-03 00:45:30

Writing Output

Time of First Successful Submission: 2026-02-03 12:22:47

Chaining Syscalls

Time of First Successful Submission: 2026-02-03 12:29:38

Writing Strings

Time of First Successful Submission: 2026-02-03 12:33:20

Reading Data

Time of First Successful Submission: 2026-02-03 12:38:44

set-register

Time of First Successful Submission: 2026-02-03 14:02:00

set-multiple-registers

Time of First Successful Submission: 2026-02-03 14:04:12

add-to-register

Time of First Successful Submission: 2026-02-03 14:08:23

linear-equation-registers

Time of First Successful Submission: 2026-02-03 14:11:06

integer-division

Time of First Successful Submission: 2026-02-03 14:41:41

modulo-operation

Time of First Successful Submission: 2026-02-03 14:51:25

set-upper-byte

Time of First Successful Submission: 2026-02-03 14:55:45

efficient-modulo

Time of First Successful Submission: 2026-02-03 15:57:08

byte-extraction

Time of First Successful Submission: 2026-02-03 20:20:25

bitwise-and

Time of First Successful Submission: 2026-02-03 20:30:35

check-even

Time of First Successful Submission: 2026-02-04 00:16:57

memory-read

Time of First Successful Submission: 2026-02-04 00:25:11

memory-write

Time of First Successful Submission: 2026-02-04 00:26:26

memory-increment

Time of First Successful Submission: 2026-02-04 00:30:04

byte-access

Time of First Successful Submission: 2026-02-04 00:35:09

memory-size-access

Time of First Successful Submission: 2026-02-04 00:41:26

little-endian-write

Time of First Successful Submission: 2026-02-04 00:46:22

memory-sum

Time of First Successful Submission: 2026-02-04 01:12:11

stack-subtraction

Time of First Successful Submission: 2026-02-04 01:15:16

swap-stack-values

Time of First Successful Submission: 2026-02-04 01:17:33

average-stack-values

Time of First Successful Submission: 2026-02-04 01:36:15

absolute-jump

Time of First Successful Submission: 2026-02-04 02:22:34

relative-jump

Time of First Successful Submission: 2026-02-04 03:10:31

jump-trampoline

Time of First Successful Submission: 2026-02-04 03:16:18

conditional-jump

Time of First Successful Submission: 2026-02-04 20:09:53

indirect-jump

Time of First Successful Submission: 2026-02-04 20:49:25

average-loop

Time of First Successful Submission: 2026-02-04 21:59:44


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-02-01 09:00:39

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-01 09:03:50

Using the GUI Desktop

Time of First Successful Submission: 2026-02-01 09:08:59

Pasting into the Desktop

Time of First Successful Submission: 2026-02-01 09:12:05

Connecting over SSH

Time of First Successful Submission: 2026-02-01 09:16:26

Restarting Challenges

Time of First Successful Submission: 2026-02-01 09:18:43

Challenge Programs

Time of First Successful Submission: 2026-02-01 09:22:00

The Flag File

Time of First Successful Submission: 2026-02-01 09:24:23

Using Privileged Mode

Time of First Successful Submission: 2026-02-01 09:30:43

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-01 09:46:11

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-01 09:47:20