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level1

Time of First Successful Submission: 2026-05-24 06:45:59

level2

Time of First Successful Submission: 2026-05-24 06:56:01

level2a

Time of First Successful Submission: 2026-05-24 06:50:11

level3

Time of First Successful Submission: 2026-05-24 07:05:48

level4

Time of First Successful Submission: 2026-05-24 07:13:52

level5

Time of First Successful Submission: 2026-05-24 12:39:17

level6

Time of First Successful Submission: 2026-05-24 15:06:01

level6a

Time of First Successful Submission: 2026-05-24 13:43:19

level7

Time of First Successful Submission: 2026-05-24 15:21:49

level8

Time of First Successful Submission: 2026-05-24 15:33:12

level9

Time of First Successful Submission: 2026-05-24 15:58:54

level10

Time of First Successful Submission: 2026-05-25 02:31:17

level10a

Time of First Successful Submission: 2026-05-24 17:48:41

level10b

Time of First Successful Submission: 2026-05-24 17:50:12

level11

Time of First Successful Submission: 2026-05-25 03:08:17

level11a

Time of First Successful Submission: 2026-05-25 02:55:29

level12

Time of First Successful Submission: 2026-05-25 03:24:07

level13

Time of First Successful Submission: 2026-05-25 03:42:00

level14

Time of First Successful Submission: 2026-05-25 03:45:01

level15

Time of First Successful Submission: 2026-05-25 03:47:06

level16

Time of First Successful Submission: 2026-05-25 04:14:26

level17

Time of First Successful Submission: 2026-05-25 04:41:01

level17a

Time of First Successful Submission: 2026-05-25 04:34:00

level17b

Time of First Successful Submission: 2026-05-25 04:39:21

level18

Time of First Successful Submission: 2026-05-25 11:20:29

level19

Time of First Successful Submission: 2026-05-25 17:03:44

level20

Time of First Successful Submission: 2026-05-26 04:11:25

level21

Time of First Successful Submission: 2026-05-26 08:55:04

level22

Time of First Successful Submission: 2026-05-27 03:53:42

level23

Time of First Successful Submission: 2026-05-28 17:21:05

Intro to Programming Languages

15 / 234 10221 / 34943

Commands

Time of First Successful Submission: 2026-05-02 01:15:59

Command Arguments

Time of First Successful Submission: 2026-05-02 01:16:50

Command History

Time of First Successful Submission: 2026-05-02 01:17:11

The Root Path

Time of First Successful Submission: 2026-05-02 01:18:12

Absolute Paths

Time of First Successful Submission: 2026-05-02 01:19:08

Changing position

Time of First Successful Submission: 2026-05-02 01:20:10

Changing to an Absolute Path

Time of First Successful Submission: 2026-05-02 01:22:26

Relative Paths

Time of First Successful Submission: 2026-05-02 01:24:22

Cat

Time of First Successful Submission: 2026-05-02 01:35:06

Ls

Time of First Successful Submission: 2026-05-02 01:44:56

Ls All

Time of First Successful Submission: 2026-05-02 01:50:34

Find

Time of First Successful Submission: 2026-05-02 09:13:45

Piping Echo

Time of First Successful Submission: 2026-05-02 20:40:25

Piping Stdout

Time of First Successful Submission: 2026-05-02 20:41:38

Piping Stdin

Time of First Successful Submission: 2026-05-02 20:47:19

Start Here

12 / 12 2306 / 47399

Using the Terminal

Time of First Successful Submission: 2026-05-01 11:12:24

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-01 11:16:48

Using the GUI Desktop

Time of First Successful Submission: 2026-05-01 11:19:18

Pasting into the Desktop

Time of First Successful Submission: 2026-05-01 11:20:40

Restarting Challenges

Time of First Successful Submission: 2026-05-01 11:31:41

Challenge Programs

Time of First Successful Submission: 2026-05-02 00:52:31

The Flag File

Time of First Successful Submission: 2026-05-02 01:05:20

Using Privileged Mode

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

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-02 01:11:57

Persistent Home Directories - Two

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

Linux Luminarium

128 / 128 3029 / 35419

Intro to Commands

Time of First Successful Submission: 2026-05-02 01:15:59

Intro to Arguments

Time of First Successful Submission: 2026-05-02 01:16:50

Command History

Time of First Successful Submission: 2026-05-02 01:17:11

The Root

Time of First Successful Submission: 2026-05-02 01:18:12

Program and absolute paths

Time of First Successful Submission: 2026-05-02 01:19:08

Position thy self

Time of First Successful Submission: 2026-05-02 01:20:10

Position elsewhere

Time of First Successful Submission: 2026-05-02 01:22:26

implicit relative paths, from /

Time of First Successful Submission: 2026-05-02 01:24:22

explicit relative paths, from /

Time of First Successful Submission: 2026-05-02 01:25:55

implicit relative path

Time of First Successful Submission: 2026-05-02 01:26:30

home sweet home

Time of First Successful Submission: 2026-05-02 01:29:15

cat: not the pet, but the command!

Time of First Successful Submission: 2026-05-02 01:35:06

catting absolute paths

Time of First Successful Submission: 2026-05-02 01:36:09

more catting practice

Time of First Successful Submission: 2026-05-02 01:38:47

grepping for a needle in a haystack

Time of First Successful Submission: 2026-05-02 01:40:59

comparing files

Time of First Successful Submission: 2026-05-02 01:43:34

listing files

Time of First Successful Submission: 2026-05-02 01:44:56

touching files

Time of First Successful Submission: 2026-05-02 01:45:49

removing files

Time of First Successful Submission: 2026-05-02 01:47:02

moving files

Time of First Successful Submission: 2026-05-02 01:48:48

copying files

Time of First Successful Submission: 2026-05-02 01:49:45

hidden files

Time of First Successful Submission: 2026-05-02 01:50:34

An Epic Filesystem Quest

Time of First Successful Submission: 2026-05-02 09:09:07

making directories

Time of First Successful Submission: 2026-05-02 09:10:39

finding files

Time of First Successful Submission: 2026-05-02 09:13:45

linking files

Time of First Successful Submission: 2026-05-02 09:43:29

Learning From Documentation

Time of First Successful Submission: 2026-05-02 09:53:41

Learning Complex Usage

Time of First Successful Submission: 2026-05-02 09:55:22

Reading Manuals

Time of First Successful Submission: 2026-05-02 09:58:35

Searching Manuals

Time of First Successful Submission: 2026-05-02 10:37:35

Searching For Manuals

Time of First Successful Submission: 2026-05-02 10:55:31

Helpful Programs

Time of First Successful Submission: 2026-05-02 10:57:01

Help for Builtins

Time of First Successful Submission: 2026-05-02 11:02:12

Matching with *

Time of First Successful Submission: 2026-05-02 12:23:10

Matching with ?

Time of First Successful Submission: 2026-05-02 12:24:37

Matching with []

Time of First Successful Submission: 2026-05-02 12:26:21

Matching paths with []

Time of First Successful Submission: 2026-05-02 12:31:59

Multiple globs

Time of First Successful Submission: 2026-05-02 12:34:12

Mixing globs

Time of First Successful Submission: 2026-05-02 12:43:05

Exclusionary globbing

Time of First Successful Submission: 2026-05-02 12:44:50

Tab completion

Time of First Successful Submission: 2026-05-02 12:46:44

Multiple options for tab completion

Time of First Successful Submission: 2026-05-02 12:52:49

Tab completion on commands

Time of First Successful Submission: 2026-05-02 12:54:05

Redirecting output

Time of First Successful Submission: 2026-05-02 20:40:25

Redirecting more output

Time of First Successful Submission: 2026-05-02 20:41:38

Appending output

Time of First Successful Submission: 2026-05-02 20:43:22

Redirecting errors

Time of First Successful Submission: 2026-05-02 20:45:44

Redirecting input

Time of First Successful Submission: 2026-05-02 20:47:19

Grepping stored results

Time of First Successful Submission: 2026-05-02 20:48:50

Grepping live output

Time of First Successful Submission: 2026-05-02 20:49:57

Grepping errors

Time of First Successful Submission: 2026-05-02 20:52:39

Filtering with grep -v

Time of First Successful Submission: 2026-05-02 20:54:45

Filtering with sed

Time of First Successful Submission: 2026-05-02 20:59:07

Duplicating piped data with tee

Time of First Successful Submission: 2026-05-02 21:26:49

Process substitution for input

Time of First Successful Submission: 2026-05-03 02:15:29

Writing to multiple programs

Time of First Successful Submission: 2026-05-03 02:25:56

Split-piping stderr and stdout

Time of First Successful Submission: 2026-05-03 02:40:54

Named pipes

Time of First Successful Submission: 2026-05-03 02:48:18

Printing Variables

Time of First Successful Submission: 2026-05-03 03:10:40

Setting Variables

Time of First Successful Submission: 2026-05-03 03:12:43

Multi-word Variables

Time of First Successful Submission: 2026-05-03 03:21:57

Exporting Variables

Time of First Successful Submission: 2026-05-03 04:12:41

Printing Exported Variables

Time of First Successful Submission: 2026-05-03 04:20:29

Storing Command Output

Time of First Successful Submission: 2026-05-03 04:29:05

Reading Input

Time of First Successful Submission: 2026-05-03 04:46:30

Reading Files

Time of First Successful Submission: 2026-05-03 05:10:35

Translating characters

Time of First Successful Submission: 2026-05-03 06:31:36

Deleting characters

Time of First Successful Submission: 2026-05-03 06:35:06

Deleting newlines

Time of First Successful Submission: 2026-05-03 06:37:15

Extracting the first lines with head

Time of First Successful Submission: 2026-05-03 06:39:00

Extracting specific sections of text

Time of First Successful Submission: 2026-05-03 06:42:48

Sorting data

Time of First Successful Submission: 2026-05-03 06:44:47

Listing Processes

Time of First Successful Submission: 2026-05-03 06:59:42

Killing Processes

Time of First Successful Submission: 2026-05-03 07:04:05

Interrupting Processes

Time of First Successful Submission: 2026-05-03 07:08:15

Killing Misbehaving Processes

Time of First Successful Submission: 2026-05-03 07:12:32

Suspending Processes

Time of First Successful Submission: 2026-05-03 07:24:44

Resuming Processes

Time of First Successful Submission: 2026-05-03 07:29:52

Backgrounding Processes

Time of First Successful Submission: 2026-05-03 07:34:54

Foregrounding Processes

Time of First Successful Submission: 2026-05-03 07:36:50

Starting Backgrounded Processes

Time of First Successful Submission: 2026-05-03 07:37:36

Process Exit Codes

Time of First Successful Submission: 2026-05-03 07:39:14

Becoming root with su

Time of First Successful Submission: 2026-05-03 07:52:22

Other users with su

Time of First Successful Submission: 2026-05-03 07:53:58

Cracking passwords

Time of First Successful Submission: 2026-05-03 07:57:32

Using sudo

Time of First Successful Submission: 2026-05-03 08:00:01

Changing File Ownership

Time of First Successful Submission: 2026-05-04 13:11:25

Groups and Files

Time of First Successful Submission: 2026-05-04 13:19:00

Fun With Groups Names

Time of First Successful Submission: 2026-05-04 13:21:17

Changing Permissions

Time of First Successful Submission: 2026-05-04 13:24:53

Executable Files

Time of First Successful Submission: 2026-05-04 13:26:46

Permission Tweaking Practice

Time of First Successful Submission: 2026-05-04 13:31:10

Permissions Setting Practice

Time of First Successful Submission: 2026-05-04 13:35:53

The SUID Bit

Time of First Successful Submission: 2026-05-04 13:38:50

Chaining with Semicolons

Time of First Successful Submission: 2026-05-04 16:34:39

Building on Success

Time of First Successful Submission: 2026-05-04 16:36:00

Handling Failure

Time of First Successful Submission: 2026-05-04 16:37:08

Your First Shell Script

Time of First Successful Submission: 2026-05-05 01:09:48

Redirecting Script Output

Time of First Successful Submission: 2026-05-05 01:13:37

Executable Shell Scripts

Time of First Successful Submission: 2026-05-05 01:15:25

Understanding Shebangs

Time of First Successful Submission: 2026-05-07 03:20:27

Scripting with Arguments

Time of First Successful Submission: 2026-05-07 03:24:02

Scripting with Conditionals

Time of First Successful Submission: 2026-05-07 03:34:50

Scripting with Default Cases

Time of First Successful Submission: 2026-05-07 03:42:05

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-05-09 20:34:18

Reading Shell Scripts

Time of First Successful Submission: 2026-05-09 20:36:03

Launching Screen

Time of First Successful Submission: 2026-05-09 20:37:18

Detaching and Attaching

Time of First Successful Submission: 2026-05-09 20:39:06

Finding Sessions

Time of First Successful Submission: 2026-05-09 20:40:10

Switching Windows

Time of First Successful Submission: 2026-05-09 20:42:29

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-05-09 20:43:59

Switching Windows (tmux)

Time of First Successful Submission: 2026-05-09 20:45:33

The PATH Variable

Time of First Successful Submission: 2026-05-09 20:47:34

Setting PATH

Time of First Successful Submission: 2026-05-09 20:56:02

Finding Commands

Time of First Successful Submission: 2026-05-09 20:57:41

Adding Commands

Time of First Successful Submission: 2026-05-09 21:00:55

Hijacking Commands

Time of First Successful Submission: 2026-05-09 21:02:56

Bashrc Backdoor

Time of First Successful Submission: 2026-05-10 02:02:57

Sniffing Input

Time of First Successful Submission: 2026-05-10 02:35:02

Overshared Directories

Time of First Successful Submission: 2026-05-10 04:13:08

Tricky Linking

Time of First Successful Submission: 2026-05-10 04:26:52

Sniffing Process Arguments

Time of First Successful Submission: 2026-05-10 04:33:26

Snooping on Configurations

Time of First Successful Submission: 2026-05-10 04:36:35

The Fork Bomb

Time of First Successful Submission: 2026-05-10 04:52:41

Disk-Space Doomsday

Time of First Successful Submission: 2026-05-10 05:20:35

rm -rf /

Time of First Successful Submission: 2026-05-10 05:25:42

Life after rm -rf /

Time of First Successful Submission: 2026-05-10 05:38:52

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-05-10 05:43:53

Computing 101

65 / 116 150 / 20429

Your First Register

Time of First Successful Submission: 2026-05-10 06:52:06

Your First Syscall

Time of First Successful Submission: 2026-05-10 07:03:36

Exit Codes

Time of First Successful Submission: 2026-05-10 07:18:08

Building Executables

Time of First Successful Submission: 2026-05-10 07:27:05

Moving Between Registers

Time of First Successful Submission: 2026-05-10 07:42:10

Loading From Memory

Time of First Successful Submission: 2026-05-10 11:19:03

More Loading Practice

Time of First Successful Submission: 2026-05-10 11:22:23

Dereferencing Pointers

Time of First Successful Submission: 2026-05-10 11:29:31

Dereferencing Yourself

Time of First Successful Submission: 2026-05-10 11:33:20

Dereferencing with Offsets

Time of First Successful Submission: 2026-05-10 11:37:57

Stored Addresses

Time of First Successful Submission: 2026-05-10 11:42:45

Double Dereference

Time of First Successful Submission: 2026-05-11 14:24:30

The Stack

Time of First Successful Submission: 2026-05-11 14:39:41

Stack Offsets

Time of First Successful Submission: 2026-05-11 16:30:51

Program Arguments on the Stack

Time of First Successful Submission: 2026-05-11 16:43:58

Popping From the Stack

Time of First Successful Submission: 2026-05-12 01:14:41

Negative Numbers

Time of First Successful Submission: 2026-06-07 08:48:25

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-06-07 09:05:51

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-06-07 09:11:25

Encoding Negatives

Time of First Successful Submission: 2026-06-07 09:20:02

Binary and Hex Encoding

Time of First Successful Submission: 2026-06-07 09:30:47

More Hex

Time of First Successful Submission: 2026-06-07 09:35:52

Decoding Hex

Time of First Successful Submission: 2026-06-07 09:52:48

Mixed Conversions

Time of First Successful Submission: 2026-06-07 09:59:46

Disassembling Programs

Time of First Successful Submission: 2026-05-13 01:12:43

Tracing Syscalls

Time of First Successful Submission: 2026-05-13 06:23:11

Starting GDB

Time of First Successful Submission: 2026-05-13 06:25:40

Quitting GDB

Time of First Successful Submission: 2026-05-13 06:26:20

Starting Programs in GDB

Time of First Successful Submission: 2026-05-13 06:29:00

Disassembling in GDB

Time of First Successful Submission: 2026-05-13 06:29:53

Stepping Through Instructions

Time of First Successful Submission: 2026-05-13 06:31:19

Reading Register Values

Time of First Successful Submission: 2026-05-13 06:32:26

Popping Stack Values

Time of First Successful Submission: 2026-05-13 07:51:16

Examining Memory

Time of First Successful Submission: 2026-05-13 07:53:55

Examining Stack Pointers

Time of First Successful Submission: 2026-05-13 07:56:42

Cooperative Debugging

Time of First Successful Submission: 2026-05-13 08:04:16

Running with Arguments

Time of First Successful Submission: 2026-06-07 10:01:28

Writing Output

Time of First Successful Submission: 2026-05-13 08:22:12

Chaining Syscalls

Time of First Successful Submission: 2026-05-13 08:23:50

Writing Strings

Time of First Successful Submission: 2026-05-13 08:24:58

Reading Data

Time of First Successful Submission: 2026-05-13 08:40:54

Opening Files

Time of First Successful Submission: 2026-05-13 09:29:53

Hardcoding the Filename

Time of First Successful Submission: 2026-05-18 13:35:04

Comparing Values

Time of First Successful Submission: 2026-05-22 10:20:31

Comparing Characters

Time of First Successful Submission: 2026-05-22 10:37:21

Conditional Control Flow

Time of First Successful Submission: 2026-05-22 10:44:02

Comparing Strings

Time of First Successful Submission: 2026-05-22 16:39:11

Reverse the Password

Time of First Successful Submission: 2026-05-23 02:05:08

Conditionals Without Conditionals

Time of First Successful Submission: 2026-05-24 03:20:10

Looping

Time of First Successful Submission: 2026-05-24 03:27:43

Reverse the Calculation

Time of First Successful Submission: 2026-05-24 03:40:56

Reverse the Reverse

Time of First Successful Submission: 2026-05-24 03:52:58

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-05-24 03:57:39

Loops on Data

Time of First Successful Submission: 2026-05-24 04:15:26

Exit

Time of First Successful Submission: 2026-05-29 15:12:29

Socket

Time of First Successful Submission: 2026-05-29 16:12:54

Bind

Time of First Successful Submission: 2026-05-29 17:58:25

Listen

Time of First Successful Submission: 2026-05-30 02:08:58

Accept

Time of First Successful Submission: 2026-05-30 02:44:30

Static Response

Time of First Successful Submission: 2026-05-30 04:11:02

Dynamic Response

Time of First Successful Submission: 2026-05-30 05:29:39

Iterative GET Server

Time of First Successful Submission: 2026-05-30 06:05:46

Concurrent GET Server

Time of First Successful Submission: 2026-05-30 06:24:59

Concurrent POST Server

Time of First Successful Submission: 2026-05-31 13:53:26

Web Server

Time of First Successful Submission: 2026-05-31 14:10:22

DSU Cyber Camps

12 / 104 2617 / 47694

Using the Terminal

Time of First Successful Submission: 2026-05-01 11:12:24

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-01 11:16:48

Using the GUI Desktop

Time of First Successful Submission: 2026-05-01 11:19:18

Pasting into the Desktop

Time of First Successful Submission: 2026-05-01 11:20:40

Connecting over SSH

Time of First Successful Submission: 2026-05-02 00:43:39

Restarting Challenges

Time of First Successful Submission: 2026-05-01 11:31:41

Getting Help

Time of First Successful Submission: 2026-05-02 00:49:54

Challenge Programs

Time of First Successful Submission: 2026-05-02 00:52:31

The Flag File

Time of First Successful Submission: 2026-05-02 01:05:20

Using Privileged Mode

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

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-02 01:11:57

Persistent Home Directories - Two

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

GCA CTF

12 / 104 2617 / 47694

Using the Terminal

Time of First Successful Submission: 2026-05-01 11:12:24

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-01 11:16:48

Using the GUI Desktop

Time of First Successful Submission: 2026-05-01 11:19:18

Pasting into the Desktop

Time of First Successful Submission: 2026-05-01 11:20:40

Connecting over SSH

Time of First Successful Submission: 2026-05-02 00:43:39

Restarting Challenges

Time of First Successful Submission: 2026-05-01 11:31:41

Getting Help

Time of First Successful Submission: 2026-05-02 00:49:54

Challenge Programs

Time of First Successful Submission: 2026-05-02 00:52:31

The Flag File

Time of First Successful Submission: 2026-05-02 01:05:20

Using Privileged Mode

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

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-02 01:11:57

Persistent Home Directories - Two

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