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31 / 232 10467 / 25694

Triple Dereference

Time of First Successful Submission: 2025-11-19 18:42:05

set-register

Time of First Successful Submission: 2025-11-22 00:22:00

set-multiple-registers

Time of First Successful Submission: 2025-11-22 00:23:23

add-to-register

Time of First Successful Submission: 2025-11-22 00:50:55

linear-equation-registers

Time of First Successful Submission: 2025-11-22 13:12:21

integer-division

Time of First Successful Submission: 2025-11-22 13:40:11

modulo-operation

Time of First Successful Submission: 2025-11-22 13:43:21

set-upper-byte

Time of First Successful Submission: 2025-11-22 13:46:16

efficient-modulo

Time of First Successful Submission: 2025-11-22 14:04:53

byte-extraction

Time of First Successful Submission: 2025-12-26 17:00:43

bitwise-and

Time of First Successful Submission: 2025-12-26 17:22:59

check-even

Time of First Successful Submission: 2025-12-26 18:13:54

memory-read

Time of First Successful Submission: 2025-12-26 18:59:50

memory-write

Time of First Successful Submission: 2025-12-26 19:27:57

memory-increment

Time of First Successful Submission: 2025-12-26 20:11:38

byte-access

Time of First Successful Submission: 2025-12-26 20:22:12

memory-size-access

Time of First Successful Submission: 2025-12-26 20:48:42

little-endian-write

Time of First Successful Submission: 2025-12-26 23:55:36

memory-sum

Time of First Successful Submission: 2025-12-27 00:49:31

stack-subtraction

Time of First Successful Submission: 2025-12-27 00:54:42

swap-stack-values

Time of First Successful Submission: 2025-12-27 00:59:35

average-stack-values

Time of First Successful Submission: 2025-12-27 01:12:29

absolute-jump

Time of First Successful Submission: 2026-01-27 23:38:58

relative-jump

Time of First Successful Submission: 2026-01-27 23:54:06

jump-trampoline

Time of First Successful Submission: 2026-01-27 23:59:55

conditional-jump

Time of First Successful Submission: 2026-01-28 00:30:36

indirect-jump

Time of First Successful Submission: 2026-01-28 01:26:40

average-loop

Time of First Successful Submission: 2026-01-28 01:45:37

count-non-zero

Time of First Successful Submission: 2026-01-28 03:05:16

string-lower

Time of First Successful Submission: 2026-01-28 04:11:09

most-common-byte

Time of First Successful Submission: 2026-01-30 19:19:02

Intro to Programming Languages

15 / 234 2302 / 34943

Commands

Time of First Successful Submission: 2025-05-29 22:23:50

Command Arguments

Time of First Successful Submission: 2025-05-29 22:26:13

Command History

Time of First Successful Submission: 2025-06-15 15:34:39

The Root Path

Time of First Successful Submission: 2025-05-30 01:14:25

Absolute Paths

Time of First Successful Submission: 2025-05-30 01:15:43

Changing position

Time of First Successful Submission: 2025-05-30 01:16:50

Changing to an Absolute Path

Time of First Successful Submission: 2025-05-30 01:18:06

Relative Paths

Time of First Successful Submission: 2025-05-30 01:28:30

Cat

Time of First Successful Submission: 2025-05-30 02:21:17

Ls

Time of First Successful Submission: 2025-05-30 02:31:51

Ls All

Time of First Successful Submission: 2025-05-30 02:37:51

Find

Time of First Successful Submission: 2025-05-30 02:47:58

Piping Echo

Time of First Successful Submission: 2025-07-17 23:21:21

Piping Stdout

Time of First Successful Submission: 2025-07-17 23:22:47

Piping Stdin

Time of First Successful Submission: 2025-07-17 23:43:46

Start Here

11 / 12 3800 / 47403

Using the Terminal

Time of First Successful Submission: 2025-08-19 15:07:15

Using the VSCode Workspace

Time of First Successful Submission: 2025-05-29 21:56:38

Using the GUI Desktop

Time of First Successful Submission: 2025-05-29 21:57:56

Pasting into the Desktop

Time of First Successful Submission: 2025-05-29 21:59:09

Restarting Challenges

Time of First Successful Submission: 2025-05-29 22:01:14

Challenge Programs

Time of First Successful Submission: 2025-05-29 22:10:57

The Flag File

Time of First Successful Submission: 2025-05-29 22:12:24

Using Privileged Mode

Time of First Successful Submission: 2025-05-29 22:18:31

Persistent Home Directories - One

Time of First Successful Submission: 2025-05-29 22:20:37

Persistent Home Directories - Two

Time of First Successful Submission: 2025-05-29 22:21:22

Linux Luminarium

128 / 128 2563 / 35419

Intro to Commands

Time of First Successful Submission: 2025-05-29 22:23:50

Intro to Arguments

Time of First Successful Submission: 2025-05-29 22:26:13

Command History

Time of First Successful Submission: 2025-06-15 15:34:39

The Root

Time of First Successful Submission: 2025-05-30 01:14:25

Program and absolute paths

Time of First Successful Submission: 2025-05-30 01:15:43

Position thy self

Time of First Successful Submission: 2025-05-30 01:16:50

Position elsewhere

Time of First Successful Submission: 2025-05-30 01:18:06

implicit relative paths, from /

Time of First Successful Submission: 2025-05-30 01:28:30

explicit relative paths, from /

Time of First Successful Submission: 2025-05-30 01:30:09

implicit relative path

Time of First Successful Submission: 2025-05-30 01:31:02

home sweet home

Time of First Successful Submission: 2025-05-30 01:34:15

cat: not the pet, but the command!

Time of First Successful Submission: 2025-05-30 02:21:17

catting absolute paths

Time of First Successful Submission: 2025-05-30 02:22:57

more catting practice

Time of First Successful Submission: 2025-05-30 02:24:23

grepping for a needle in a haystack

Time of First Successful Submission: 2025-05-30 02:25:46

comparing files

Time of First Successful Submission: 2025-11-20 19:42:14

listing files

Time of First Successful Submission: 2025-05-30 02:31:51

touching files

Time of First Successful Submission: 2025-05-30 02:32:57

removing files

Time of First Successful Submission: 2025-05-30 02:33:40

moving files

Time of First Successful Submission: 2025-06-19 12:49:51

copying files

Time of First Successful Submission: 2025-11-20 19:37:58

hidden files

Time of First Successful Submission: 2025-05-30 02:37:51

An Epic Filesystem Quest

Time of First Successful Submission: 2025-05-30 02:42:43

making directories

Time of First Successful Submission: 2025-05-30 02:45:01

finding files

Time of First Successful Submission: 2025-05-30 02:47:58

linking files

Time of First Successful Submission: 2025-05-30 19:31:48

Learning From Documentation

Time of First Successful Submission: 2025-05-30 19:36:36

Learning Complex Usage

Time of First Successful Submission: 2025-05-30 19:40:13

Reading Manuals

Time of First Successful Submission: 2025-05-30 19:43:05

Searching Manuals

Time of First Successful Submission: 2025-05-30 19:49:24

Searching For Manuals

Time of First Successful Submission: 2025-06-19 14:09:41

Helpful Programs

Time of First Successful Submission: 2025-06-19 14:16:44

Help for Builtins

Time of First Successful Submission: 2025-06-19 14:21:45

Matching with *

Time of First Successful Submission: 2025-06-19 16:18:02

Matching with ?

Time of First Successful Submission: 2025-07-05 18:01:10

Matching with []

Time of First Successful Submission: 2025-07-05 18:08:05

Matching paths with []

Time of First Successful Submission: 2025-07-05 18:22:14

Multiple globs

Time of First Successful Submission: 2025-07-05 18:25:02

Mixing globs

Time of First Successful Submission: 2025-07-17 23:12:54

Exclusionary globbing

Time of First Successful Submission: 2025-07-17 23:17:58

Tab completion

Time of First Successful Submission: 2025-06-19 16:15:31

Multiple options for tab completion

Time of First Successful Submission: 2025-06-19 16:16:58

Tab completion on commands

Time of First Successful Submission: 2025-06-19 16:17:40

Redirecting output

Time of First Successful Submission: 2025-07-17 23:21:21

Redirecting more output

Time of First Successful Submission: 2025-07-17 23:22:47

Appending output

Time of First Successful Submission: 2025-07-17 23:32:28

Redirecting errors

Time of First Successful Submission: 2025-07-17 23:41:54

Redirecting input

Time of First Successful Submission: 2025-07-17 23:43:46

Grepping stored results

Time of First Successful Submission: 2025-07-17 23:45:07

Grepping live output

Time of First Successful Submission: 2025-07-17 23:46:02

Grepping errors

Time of First Successful Submission: 2025-07-17 23:50:09

Filtering with grep -v

Time of First Successful Submission: 2025-07-17 23:52:11

Filtering with sed

Time of First Successful Submission: 2025-12-23 13:47:56

Duplicating piped data with tee

Time of First Successful Submission: 2025-07-18 00:01:12

Process substitution for input

Time of First Successful Submission: 2025-12-23 13:53:55

Writing to multiple programs

Time of First Successful Submission: 2025-07-18 13:59:31

Split-piping stderr and stdout

Time of First Successful Submission: 2025-07-18 14:16:39

Named pipes

Time of First Successful Submission: 2025-12-23 14:02:54

Printing Variables

Time of First Successful Submission: 2025-07-18 14:25:36

Setting Variables

Time of First Successful Submission: 2025-07-18 14:29:13

Multi-word Variables

Time of First Successful Submission: 2025-07-18 14:33:52

Exporting Variables

Time of First Successful Submission: 2025-07-18 14:36:43

Printing Exported Variables

Time of First Successful Submission: 2025-07-18 14:37:42

Storing Command Output

Time of First Successful Submission: 2025-07-18 14:39:45

Reading Input

Time of First Successful Submission: 2025-07-18 15:02:58

Reading Files

Time of First Successful Submission: 2025-07-18 15:05:56

Translating characters

Time of First Successful Submission: 2025-07-18 15:25:47

Deleting characters

Time of First Successful Submission: 2026-02-26 13:09:43

Deleting newlines

Time of First Successful Submission: 2026-02-26 13:11:02

Extracting the first lines with head

Time of First Successful Submission: 2026-02-26 13:12:32

Extracting specific sections of text

Time of First Successful Submission: 2026-02-26 13:18:20

Sorting data

Time of First Successful Submission: 2026-02-26 13:20:54

Listing Processes

Time of First Successful Submission: 2026-02-26 14:40:25

Killing Processes

Time of First Successful Submission: 2026-02-26 14:43:01

Interrupting Processes

Time of First Successful Submission: 2026-02-26 14:43:44

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-26 15:02:47

Suspending Processes

Time of First Successful Submission: 2026-02-26 15:07:16

Resuming Processes

Time of First Successful Submission: 2026-02-26 15:07:53

Backgrounding Processes

Time of First Successful Submission: 2026-02-26 15:11:06

Foregrounding Processes

Time of First Successful Submission: 2026-02-26 15:14:15

Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-26 15:17:13

Process Exit Codes

Time of First Successful Submission: 2026-02-26 15:19:23

Becoming root with su

Time of First Successful Submission: 2025-12-23 14:09:59

Other users with su

Time of First Successful Submission: 2025-12-23 14:11:42

Cracking passwords

Time of First Successful Submission: 2025-12-23 14:14:28

Using sudo

Time of First Successful Submission: 2025-12-23 14:16:00

Changing File Ownership

Time of First Successful Submission: 2026-02-27 12:15:05

Groups and Files

Time of First Successful Submission: 2026-02-27 13:47:51

Fun With Groups Names

Time of First Successful Submission: 2026-02-27 13:52:21

Changing Permissions

Time of First Successful Submission: 2026-02-27 22:52:13

Executable Files

Time of First Successful Submission: 2026-02-27 23:14:33

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-27 23:30:20

Permissions Setting Practice

Time of First Successful Submission: 2026-02-27 23:34:09

The SUID Bit

Time of First Successful Submission: 2026-02-27 23:35:44

Chaining with Semicolons

Time of First Successful Submission: 2026-02-27 23:41:01

Building on Success

Time of First Successful Submission: 2026-02-27 23:42:43

Handling Failure

Time of First Successful Submission: 2026-02-27 23:43:17

Your First Shell Script

Time of First Successful Submission: 2026-02-27 23:46:42

Redirecting Script Output

Time of First Successful Submission: 2026-03-01 03:10:50

Executable Shell Scripts

Time of First Successful Submission: 2026-03-01 03:11:42

Understanding Shebangs

Time of First Successful Submission: 2026-03-01 03:13:28

Scripting with Arguments

Time of First Successful Submission: 2026-03-01 03:14:55

Scripting with Conditionals

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

Scripting with Default Cases

Time of First Successful Submission: 2026-03-01 03:22:05

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-01 03:24:26

Reading Shell Scripts

Time of First Successful Submission: 2026-03-01 03:25:59

Launching Screen

Time of First Successful Submission: 2025-12-23 00:30:15

Detaching and Attaching

Time of First Successful Submission: 2025-12-23 00:32:22

Finding Sessions

Time of First Successful Submission: 2025-12-23 00:35:08

Switching Windows

Time of First Successful Submission: 2025-12-23 00:45:26

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-23 00:47:23

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-23 00:48:48

The PATH Variable

Time of First Successful Submission: 2026-03-01 03:28:23

Setting PATH

Time of First Successful Submission: 2026-03-01 03:30:57

Finding Commands

Time of First Successful Submission: 2026-03-01 03:33:17

Adding Commands

Time of First Successful Submission: 2026-03-01 03:45:22

Hijacking Commands

Time of First Successful Submission: 2026-03-01 03:52:20

Bashrc Backdoor

Time of First Successful Submission: 2026-03-21 13:15:05

Sniffing Input

Time of First Successful Submission: 2026-03-21 14:27:27

Overshared Directories

Time of First Successful Submission: 2026-03-21 14:34:01

Tricky Linking

Time of First Successful Submission: 2026-03-21 14:42:53

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-24 11:14:58

Snooping on Configurations

Time of First Successful Submission: 2026-03-24 11:18:24

The Fork Bomb

Time of First Successful Submission: 2026-03-01 13:30:23

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-01 13:33:20

rm -rf /

Time of First Successful Submission: 2026-03-01 13:35:59

Life after rm -rf /

Time of First Successful Submission: 2026-03-01 13:42:48

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-01 13:47:47

Computing 101

21 / 116 7778 / 20432

Your First Register

Time of First Successful Submission: 2025-11-16 13:10:18

Your First Syscall

Time of First Successful Submission: 2025-11-16 13:17:59

Exit Codes

Time of First Successful Submission: 2025-11-16 13:20:51

Building Executables

Time of First Successful Submission: 2025-11-16 13:56:42

Moving Between Registers

Time of First Successful Submission: 2025-11-16 15:30:21

Loading From Memory

Time of First Successful Submission: 2025-11-17 18:21:21

More Loading Practice

Time of First Successful Submission: 2025-11-17 18:24:08

Dereferencing Pointers

Time of First Successful Submission: 2025-11-19 17:33:07

Dereferencing Yourself

Time of First Successful Submission: 2025-11-19 17:46:33

Dereferencing with Offsets

Time of First Successful Submission: 2025-11-19 18:09:07

Stored Addresses

Time of First Successful Submission: 2025-11-19 18:26:58

Double Dereference

Time of First Successful Submission: 2025-11-19 18:40:40

Tracing Syscalls

Time of First Successful Submission: 2025-11-16 18:11:41

Starting GDB

Time of First Successful Submission: 2025-11-16 18:13:07

Starting Programs in GDB

Time of First Successful Submission: 2025-11-16 18:16:15

Writing Output

Time of First Successful Submission: 2025-11-20 15:00:52

Chaining Syscalls

Time of First Successful Submission: 2025-11-20 15:06:34

Writing Strings

Time of First Successful Submission: 2025-11-20 15:07:39

Reading Data

Time of First Successful Submission: 2025-11-20 15:18:05

Debugging Programs

Time of First Successful Submission: 2026-02-01 18:08:41

Inspecting Registers

Time of First Successful Submission: 2026-02-01 18:11:42

Playing With Programs

23 / 116 14176 / 24101

cat

Time of First Successful Submission: 2026-03-24 11:29:24

more

Time of First Successful Submission: 2026-03-24 11:30:06

less

Time of First Successful Submission: 2026-03-24 11:30:39

tail

Time of First Successful Submission: 2026-03-24 11:31:03

head

Time of First Successful Submission: 2026-03-24 11:31:27

sort

Time of First Successful Submission: 2026-03-24 11:31:52

vim

Time of First Successful Submission: 2026-03-24 11:32:21

emacs

Time of First Successful Submission: 2026-03-24 11:32:46

nano

Time of First Successful Submission: 2026-03-24 11:33:14

rev

Time of First Successful Submission: 2026-03-24 11:34:00

od

Time of First Successful Submission: 2026-03-24 11:39:05

hd

Time of First Successful Submission: 2026-03-24 11:40:31

xxd

Time of First Successful Submission: 2026-03-24 11:41:45

base32

Time of First Successful Submission: 2026-03-24 22:10:39

base64

Time of First Successful Submission: 2026-03-24 22:11:17

split

Time of First Successful Submission: 2026-03-24 22:13:15

gzip

Time of First Successful Submission: 2026-03-24 22:20:30

ar

Time of First Successful Submission: 2026-03-24 22:45:12

wc

Time of First Successful Submission: 2026-03-24 22:21:44

gcc

Time of First Successful Submission: 2026-03-24 22:22:13

as

Time of First Successful Submission: 2026-03-24 22:43:44

wget

Time of First Successful Submission: 2026-03-24 22:34:14

ssh-keygen

Time of First Successful Submission: 2026-03-24 22:42:40

DSU Cyber Camps

11 / 104 4078 / 47698

Using the Terminal

Time of First Successful Submission: 2025-08-19 15:07:15

Using the VSCode Workspace

Time of First Successful Submission: 2025-05-29 21:56:38

Using the GUI Desktop

Time of First Successful Submission: 2025-05-29 21:57:56

Pasting into the Desktop

Time of First Successful Submission: 2025-05-29 21:59:09

Restarting Challenges

Time of First Successful Submission: 2025-05-29 22:01:14

Getting Help

Time of First Successful Submission: 2025-05-29 22:06:15

Challenge Programs

Time of First Successful Submission: 2025-05-29 22:10:57

The Flag File

Time of First Successful Submission: 2025-05-29 22:12:24

Using Privileged Mode

Time of First Successful Submission: 2025-05-29 22:18:31

Persistent Home Directories - One

Time of First Successful Submission: 2025-05-29 22:20:37

Persistent Home Directories - Two

Time of First Successful Submission: 2025-05-29 22:21:22

GCA CTF

11 / 104 4078 / 47698

Using the Terminal

Time of First Successful Submission: 2025-08-19 15:07:15

Using the VSCode Workspace

Time of First Successful Submission: 2025-05-29 21:56:38

Using the GUI Desktop

Time of First Successful Submission: 2025-05-29 21:57:56

Pasting into the Desktop

Time of First Successful Submission: 2025-05-29 21:59:09

Restarting Challenges

Time of First Successful Submission: 2025-05-29 22:01:14

Getting Help

Time of First Successful Submission: 2025-05-29 22:06:15

Challenge Programs

Time of First Successful Submission: 2025-05-29 22:10:57

The Flag File

Time of First Successful Submission: 2025-05-29 22:12:24

Using Privileged Mode

Time of First Successful Submission: 2025-05-29 22:18:31

Persistent Home Directories - One

Time of First Successful Submission: 2025-05-29 22:20:37

Persistent Home Directories - Two

Time of First Successful Submission: 2025-05-29 22:21:22