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ARM Architecture

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Level1

Time of First Successful Submission: 2026-05-15 19:02:10


Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-04-22 22:57:36

Command Arguments

Time of First Successful Submission: 2026-04-22 22:59:05

Command History

Time of First Successful Submission: 2026-04-22 22:59:57

The Root Path

Time of First Successful Submission: 2026-04-23 11:24:53

Absolute Paths

Time of First Successful Submission: 2026-04-23 11:30:47

Changing position

Time of First Successful Submission: 2026-04-23 11:33:43

Changing to an Absolute Path

Time of First Successful Submission: 2026-04-23 11:36:30

Relative Paths

Time of First Successful Submission: 2026-04-23 11:42:19

Cat

Time of First Successful Submission: 2026-04-23 12:03:17

Ls

Time of First Successful Submission: 2026-04-23 12:14:40

Ls All

Time of First Successful Submission: 2026-04-23 12:33:30

Find

Time of First Successful Submission: 2026-04-27 10:24:34

Piping Echo

Time of First Successful Submission: 2026-04-27 19:33:51

Piping Stdout

Time of First Successful Submission: 2026-04-27 21:10:45

Piping Stdin

Time of First Successful Submission: 2026-04-28 06:12:27


XNU Dojo

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Level1

Time of First Successful Submission: 2026-05-15 19:02:10


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-04-22 07:55:33

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-22 11:26:55

Using the GUI Desktop

Time of First Successful Submission: 2026-04-22 11:28:16

Pasting into the Desktop

Time of First Successful Submission: 2026-04-22 12:48:22

Restarting Challenges

Time of First Successful Submission: 2026-04-22 08:49:48

Challenge Programs

Time of First Successful Submission: 2026-04-22 08:56:58

The Flag File

Time of First Successful Submission: 2026-04-22 21:14:21

Using Privileged Mode

Time of First Successful Submission: 2026-04-22 21:17:22

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-22 22:10:26

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-22 22:12:51


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-04-22 22:57:36

Intro to Arguments

Time of First Successful Submission: 2026-04-22 22:59:05

Command History

Time of First Successful Submission: 2026-04-22 22:59:57

The Root

Time of First Successful Submission: 2026-04-23 11:24:53

Program and absolute paths

Time of First Successful Submission: 2026-04-23 11:30:47

Position thy self

Time of First Successful Submission: 2026-04-23 11:33:43

Position elsewhere

Time of First Successful Submission: 2026-04-23 11:36:30

implicit relative paths, from /

Time of First Successful Submission: 2026-04-23 11:42:19

explicit relative paths, from /

Time of First Successful Submission: 2026-04-23 11:50:32

implicit relative path

Time of First Successful Submission: 2026-04-23 11:52:03

home sweet home

Time of First Successful Submission: 2026-04-23 11:57:00

cat: not the pet, but the command!

Time of First Successful Submission: 2026-04-23 12:03:17

catting absolute paths

Time of First Successful Submission: 2026-04-23 12:06:03

more catting practice

Time of First Successful Submission: 2026-04-23 12:07:35

grepping for a needle in a haystack

Time of First Successful Submission: 2026-04-23 12:10:16

comparing files

Time of First Successful Submission: 2026-04-23 12:13:09

listing files

Time of First Successful Submission: 2026-04-23 12:14:40

touching files

Time of First Successful Submission: 2026-04-23 12:17:35

removing files

Time of First Successful Submission: 2026-04-23 12:18:29

moving files

Time of First Successful Submission: 2026-04-23 12:20:15

copying files

Time of First Successful Submission: 2026-04-23 12:22:18

hidden files

Time of First Successful Submission: 2026-04-23 12:33:30

An Epic Filesystem Quest

Time of First Successful Submission: 2026-04-25 09:19:12

making directories

Time of First Successful Submission: 2026-04-27 08:25:23

finding files

Time of First Successful Submission: 2026-04-27 10:24:34

linking files

Time of First Successful Submission: 2026-04-27 13:01:53

Learning From Documentation

Time of First Successful Submission: 2026-04-27 13:55:45

Learning Complex Usage

Time of First Successful Submission: 2026-04-27 13:57:51

Reading Manuals

Time of First Successful Submission: 2026-04-27 14:04:22

Searching Manuals

Time of First Successful Submission: 2026-04-27 16:20:21

Searching For Manuals

Time of First Successful Submission: 2026-04-27 16:40:39

Helpful Programs

Time of First Successful Submission: 2026-04-27 16:48:25

Help for Builtins

Time of First Successful Submission: 2026-04-27 17:01:34

Matching with *

Time of First Successful Submission: 2026-04-27 18:51:14

Matching with ?

Time of First Successful Submission: 2026-04-27 19:04:09

Matching with []

Time of First Successful Submission: 2026-04-27 19:05:40

Matching paths with []

Time of First Successful Submission: 2026-04-27 19:10:26

Multiple globs

Time of First Successful Submission: 2026-04-27 19:13:37

Mixing globs

Time of First Successful Submission: 2026-04-27 19:16:38

Exclusionary globbing

Time of First Successful Submission: 2026-04-27 19:18:25

Tab completion

Time of First Successful Submission: 2026-04-27 19:20:52

Multiple options for tab completion

Time of First Successful Submission: 2026-04-27 19:23:31

Tab completion on commands

Time of First Successful Submission: 2026-04-27 19:25:10

Redirecting output

Time of First Successful Submission: 2026-04-27 19:33:51

Redirecting more output

Time of First Successful Submission: 2026-04-27 21:10:45

Appending output

Time of First Successful Submission: 2026-04-28 05:26:40

Redirecting errors

Time of First Successful Submission: 2026-04-28 05:34:43

Redirecting input

Time of First Successful Submission: 2026-04-28 06:12:27

Grepping stored results

Time of First Successful Submission: 2026-04-28 06:16:02

Grepping live output

Time of First Successful Submission: 2026-04-28 06:18:17

Grepping errors

Time of First Successful Submission: 2026-04-28 06:20:56

Filtering with grep -v

Time of First Successful Submission: 2026-04-28 06:22:27

Filtering with sed

Time of First Successful Submission: 2026-04-28 06:25:20

Duplicating piped data with tee

Time of First Successful Submission: 2026-04-28 06:38:52

Process substitution for input

Time of First Successful Submission: 2026-04-28 06:45:18

Writing to multiple programs

Time of First Successful Submission: 2026-04-28 06:57:57

Split-piping stderr and stdout

Time of First Successful Submission: 2026-04-28 07:24:24

Named pipes

Time of First Successful Submission: 2026-04-28 07:35:39

Printing Variables

Time of First Successful Submission: 2026-04-28 07:39:50

Setting Variables

Time of First Successful Submission: 2026-04-28 07:41:40

Multi-word Variables

Time of First Successful Submission: 2026-04-28 07:43:02

Exporting Variables

Time of First Successful Submission: 2026-04-28 07:47:08

Printing Exported Variables

Time of First Successful Submission: 2026-04-28 07:47:56

Storing Command Output

Time of First Successful Submission: 2026-04-28 07:54:17

Reading Input

Time of First Successful Submission: 2026-04-28 07:57:33

Reading Files

Time of First Successful Submission: 2026-04-28 08:05:05

Translating characters

Time of First Successful Submission: 2026-04-28 08:10:07

Deleting characters

Time of First Successful Submission: 2026-04-28 08:11:04

Deleting newlines

Time of First Successful Submission: 2026-04-28 08:15:18

Extracting the first lines with head

Time of First Successful Submission: 2026-04-28 08:18:45

Extracting specific sections of text

Time of First Successful Submission: 2026-04-28 08:38:41

Sorting data

Time of First Successful Submission: 2026-04-28 08:40:18

Listing Processes

Time of First Successful Submission: 2026-04-28 08:55:05

Killing Processes

Time of First Successful Submission: 2026-04-28 09:54:42

Interrupting Processes

Time of First Successful Submission: 2026-04-28 09:55:47

Killing Misbehaving Processes

Time of First Successful Submission: 2026-04-28 09:59:46

Suspending Processes

Time of First Successful Submission: 2026-04-28 10:01:00

Resuming Processes

Time of First Successful Submission: 2026-04-28 10:02:05

Backgrounding Processes

Time of First Successful Submission: 2026-04-28 10:07:24

Foregrounding Processes

Time of First Successful Submission: 2026-04-28 10:08:46

Starting Backgrounded Processes

Time of First Successful Submission: 2026-04-28 10:09:30

Process Exit Codes

Time of First Successful Submission: 2026-04-28 10:11:58

Becoming root with su

Time of First Successful Submission: 2026-04-28 10:19:06

Other users with su

Time of First Successful Submission: 2026-04-28 10:19:47

Cracking passwords

Time of First Successful Submission: 2026-04-28 10:23:59

Using sudo

Time of First Successful Submission: 2026-04-28 10:26:52

Changing File Ownership

Time of First Successful Submission: 2026-04-28 16:44:47

Groups and Files

Time of First Successful Submission: 2026-04-28 18:35:15

Fun With Groups Names

Time of First Successful Submission: 2026-04-28 19:02:50

Changing Permissions

Time of First Successful Submission: 2026-04-28 19:21:39

Executable Files

Time of First Successful Submission: 2026-04-28 19:44:54

Permission Tweaking Practice

Time of First Successful Submission: 2026-04-28 19:54:11

Permissions Setting Practice

Time of First Successful Submission: 2026-04-28 20:02:04

The SUID Bit

Time of First Successful Submission: 2026-04-28 20:11:25

Chaining with Semicolons

Time of First Successful Submission: 2026-04-28 20:14:10

Building on Success

Time of First Successful Submission: 2026-04-28 20:26:38

Handling Failure

Time of First Successful Submission: 2026-04-28 20:38:05

Your First Shell Script

Time of First Successful Submission: 2026-04-28 20:51:10

Redirecting Script Output

Time of First Successful Submission: 2026-04-28 22:29:08

Executable Shell Scripts

Time of First Successful Submission: 2026-04-29 06:59:06

Understanding Shebangs

Time of First Successful Submission: 2026-04-29 07:03:53

Scripting with Arguments

Time of First Successful Submission: 2026-04-29 07:08:25

Scripting with Conditionals

Time of First Successful Submission: 2026-04-29 07:11:45

Scripting with Default Cases

Time of First Successful Submission: 2026-04-29 07:14:19

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-04-29 07:19:18

Reading Shell Scripts

Time of First Successful Submission: 2026-04-29 07:21:02

Launching Screen

Time of First Successful Submission: 2026-04-29 07:23:10

Detaching and Attaching

Time of First Successful Submission: 2026-04-29 07:26:46

Finding Sessions

Time of First Successful Submission: 2026-04-29 07:29:30

Switching Windows

Time of First Successful Submission: 2026-04-29 07:31:34

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-04-29 07:33:17

Switching Windows (tmux)

Time of First Successful Submission: 2026-04-29 07:37:22

The PATH Variable

Time of First Successful Submission: 2026-04-29 07:45:37

Setting PATH

Time of First Successful Submission: 2026-04-29 07:48:08

Finding Commands

Time of First Successful Submission: 2026-04-29 07:51:07

Adding Commands

Time of First Successful Submission: 2026-04-29 07:59:54

Hijacking Commands

Time of First Successful Submission: 2026-04-29 08:08:55

Bashrc Backdoor

Time of First Successful Submission: 2026-04-29 08:28:10

Sniffing Input

Time of First Successful Submission: 2026-04-29 16:00:25

Overshared Directories

Time of First Successful Submission: 2026-04-29 16:11:41

Tricky Linking

Time of First Successful Submission: 2026-04-29 16:23:53

Sniffing Process Arguments

Time of First Successful Submission: 2026-04-29 16:30:40

Snooping on Configurations

Time of First Successful Submission: 2026-04-29 16:35:44

The Fork Bomb

Time of First Successful Submission: 2026-04-29 19:09:38

Disk-Space Doomsday

Time of First Successful Submission: 2026-04-29 20:35:46

rm -rf /

Time of First Successful Submission: 2026-04-29 20:52:33

Life after rm -rf /

Time of First Successful Submission: 2026-04-29 21:09:36

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-04-29 21:13:41


Computing 101

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Your First Register

Time of First Successful Submission: 2026-04-30 11:25:16

Your First Syscall

Time of First Successful Submission: 2026-04-30 11:30:33

Exit Codes

Time of First Successful Submission: 2026-04-30 11:32:58

Building Executables

Time of First Successful Submission: 2026-04-30 11:42:58

Moving Between Registers

Time of First Successful Submission: 2026-05-02 11:41:09

Loading From Memory

Time of First Successful Submission: 2026-05-02 11:52:59

More Loading Practice

Time of First Successful Submission: 2026-05-02 11:55:14

Dereferencing Pointers

Time of First Successful Submission: 2026-05-02 13:02:29

Dereferencing Yourself

Time of First Successful Submission: 2026-05-12 13:45:26

Dereferencing with Offsets

Time of First Successful Submission: 2026-05-12 13:49:46

Stored Addresses

Time of First Successful Submission: 2026-05-12 14:05:50

Double Dereference

Time of First Successful Submission: 2026-05-12 15:05:46

The Stack

Time of First Successful Submission: 2026-05-12 16:03:00

Stack Offsets

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

Program Arguments on the Stack

Time of First Successful Submission: 2026-05-12 16:37:46

Popping From the Stack

Time of First Successful Submission: 2026-05-12 16:45:43

Disassembling Programs

Time of First Successful Submission: 2026-05-13 05:49:12

Tracing Syscalls

Time of First Successful Submission: 2026-05-13 05:55:57

Starting GDB

Time of First Successful Submission: 2026-05-13 06:13:16

Quitting GDB

Time of First Successful Submission: 2026-05-13 06:14:26

Starting Programs in GDB

Time of First Successful Submission: 2026-05-13 06:24:45

Disassembling in GDB

Time of First Successful Submission: 2026-05-13 08:42:13

Stepping Through Instructions

Time of First Successful Submission: 2026-05-13 08:56:45

Reading Register Values

Time of First Successful Submission: 2026-05-13 11:21:09

Popping Stack Values

Time of First Successful Submission: 2026-05-13 11:24:41

Examining Memory

Time of First Successful Submission: 2026-05-13 11:27:41

Examining Stack Pointers

Time of First Successful Submission: 2026-05-13 11:35:46

Cooperative Debugging

Time of First Successful Submission: 2026-05-13 11:45:20

Writing Output

Time of First Successful Submission: 2026-05-13 12:29:32

Chaining Syscalls

Time of First Successful Submission: 2026-05-13 14:38:50

Writing Strings

Time of First Successful Submission: 2026-05-13 14:40:26

Reading Data

Time of First Successful Submission: 2026-05-13 14:52:00

Opening Files

Time of First Successful Submission: 2026-05-13 15:03:49

Hardcoding the Filename

Time of First Successful Submission: 2026-05-13 15:09:36

Comparing Values

Time of First Successful Submission: 2026-05-13 15:54:25

Comparing Characters

Time of First Successful Submission: 2026-05-13 16:01:12

Conditional Control Flow

Time of First Successful Submission: 2026-05-13 17:35:33

Comparing Strings

Time of First Successful Submission: 2026-05-13 18:02:12

Reverse the Password

Time of First Successful Submission: 2026-05-13 18:10:39

Conditionals Without Conditionals

Time of First Successful Submission: 2026-05-13 18:29:40

Looping

Time of First Successful Submission: 2026-05-13 18:36:23

Reverse the Calculation

Time of First Successful Submission: 2026-05-13 18:40:32

Reverse the Reverse

Time of First Successful Submission: 2026-05-13 18:52:39

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-05-13 18:56:32

Loops on Data

Time of First Successful Submission: 2026-05-13 18:58:43

set-register

Time of First Successful Submission: 2026-05-13 19:26:41

set-multiple-registers

Time of First Successful Submission: 2026-05-13 21:00:36

add-to-register

Time of First Successful Submission: 2026-05-14 10:12:05

linear-equation-registers

Time of First Successful Submission: 2026-05-14 10:15:53

integer-division

Time of First Successful Submission: 2026-05-14 10:38:26

modulo-operation

Time of First Successful Submission: 2026-05-14 10:45:41

set-upper-byte

Time of First Successful Submission: 2026-05-14 11:15:36

efficient-modulo

Time of First Successful Submission: 2026-05-14 11:21:14

byte-extraction

Time of First Successful Submission: 2026-05-14 11:30:47

bitwise-and

Time of First Successful Submission: 2026-05-14 11:39:15

check-even

Time of First Successful Submission: 2026-05-14 11:43:44

memory-read

Time of First Successful Submission: 2026-05-14 11:51:08

memory-write

Time of First Successful Submission: 2026-05-14 11:53:35

memory-increment

Time of First Successful Submission: 2026-05-14 12:00:50

byte-access

Time of First Successful Submission: 2026-05-14 12:04:15

memory-size-access

Time of First Successful Submission: 2026-05-14 12:08:53

little-endian-write

Time of First Successful Submission: 2026-05-14 12:16:46

memory-sum

Time of First Successful Submission: 2026-05-14 12:26:11

stack-subtraction

Time of First Successful Submission: 2026-05-14 12:35:34

swap-stack-values

Time of First Successful Submission: 2026-05-14 17:09:23

average-stack-values

Time of First Successful Submission: 2026-05-14 17:31:40

absolute-jump

Time of First Successful Submission: 2026-05-14 17:41:47

relative-jump

Time of First Successful Submission: 2026-05-14 18:58:50

jump-trampoline

Time of First Successful Submission: 2026-05-14 19:02:45

conditional-jump

Time of First Successful Submission: 2026-05-14 19:13:00

indirect-jump

Time of First Successful Submission: 2026-05-14 19:16:59

average-loop

Time of First Successful Submission: 2026-05-14 19:21:43

count-non-zero

Time of First Successful Submission: 2026-05-14 20:20:51

string-lower

Time of First Successful Submission: 2026-05-15 08:16:47

most-common-byte

Time of First Successful Submission: 2026-05-15 08:20:19

Exit

Time of First Successful Submission: 2026-05-15 10:30:54

Socket

Time of First Successful Submission: 2026-05-15 11:01:09

Bind

Time of First Successful Submission: 2026-05-15 11:11:26

Listen

Time of First Successful Submission: 2026-05-15 11:16:20

Accept

Time of First Successful Submission: 2026-05-15 11:24:24

Static Response

Time of First Successful Submission: 2026-05-15 11:32:59

Dynamic Response

Time of First Successful Submission: 2026-05-15 11:37:05

Iterative GET Server

Time of First Successful Submission: 2026-05-15 11:39:06

Concurrent GET Server

Time of First Successful Submission: 2026-05-15 11:42:39

Concurrent POST Server

Time of First Successful Submission: 2026-05-15 11:44:21

Web Server

Time of First Successful Submission: 2026-05-15 11:47:16

Debugging Programs

Time of First Successful Submission: 2026-05-15 12:45:28

Inspecting Registers

Time of First Successful Submission: 2026-05-15 12:51:39

Examining Memory

Time of First Successful Submission: 2026-05-15 13:39:29

Setting Breakpoints

Time of First Successful Submission: 2026-05-15 14:24:51

GDB Scripting

Time of First Successful Submission: 2026-05-15 15:58:17

Modifying Data

Time of First Successful Submission: 2026-05-15 16:14:53

Modifying Execution

Time of First Successful Submission: 2026-05-15 16:18:07

Broken Functions

Time of First Successful Submission: 2026-05-15 16:33:07


Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-05-02 18:14:21

... and again!

Time of First Successful Submission: 2026-05-02 18:14:59

Newline Troubles

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

Reasoning about files

Time of First Successful Submission: 2026-05-02 18:21:45

Specifying Filenames

Time of First Successful Submission: 2026-05-02 18:23:50

Binary and Hex Encoding

Time of First Successful Submission: 2026-05-02 18:37:26

More Hex

Time of First Successful Submission: 2026-05-02 18:41:24

Decoding Hex

Time of First Successful Submission: 2026-05-02 18:46:19

Decoding Practice

Time of First Successful Submission: 2026-05-02 18:48:49

Encoding Practice

Time of First Successful Submission: 2026-05-02 18:51:52

Hex-encoding ASCII

Time of First Successful Submission: 2026-05-03 19:55:37

Nested Encoding

Time of First Successful Submission: 2026-05-03 22:39:22

Hex-encoding UTF-8

Time of First Successful Submission: 2026-05-03 22:52:57

UTF Mixups

Time of First Successful Submission: 2026-05-03 22:55:57

Modifying Encoded Data

Time of First Successful Submission: 2026-05-03 22:59:54

Decoding Base64

Time of First Successful Submission: 2026-05-03 23:03:02

Encoding Base64

Time of First Successful Submission: 2026-05-03 23:04:32

Dealing with Obfuscation

Time of First Successful Submission: 2026-05-03 23:07:45

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-05-03 23:10:29

Your First HTTP Request

Time of First Successful Submission: 2026-05-03 23:33:58

Reading Flask

Time of First Successful Submission: 2026-05-03 23:24:02

Commented Data

Time of First Successful Submission: 2026-05-03 23:32:52

HTTP Metadata

Time of First Successful Submission: 2026-05-04 15:10:50

HTTP (netcat)

Time of First Successful Submission: 2026-05-07 16:04:16

HTTP Paths (netcat)

Time of First Successful Submission: 2026-05-07 16:07:26

HTTP (curl)

Time of First Successful Submission: 2026-05-07 16:15:00

HTTP (python)

Time of First Successful Submission: 2026-05-07 19:50:34

HTTP Host Header (python)

Time of First Successful Submission: 2026-05-07 20:14:42

HTTP Host Header (curl)

Time of First Successful Submission: 2026-05-07 21:11:34

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-05-07 21:22:28

URL Encoding (netcat)

Time of First Successful Submission: 2026-05-08 07:32:57

HTTP GET Parameters

Time of First Successful Submission: 2026-05-08 07:40:50

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-05-08 07:53:12

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-05-08 09:51:59

HTTP Forms

Time of First Successful Submission: 2026-05-08 09:58:16

HTTP Forms (curl)

Time of First Successful Submission: 2026-05-08 10:03:24

HTTP Forms (netcat)

Time of First Successful Submission: 2026-05-08 10:07:42

HTTP Forms (python)

Time of First Successful Submission: 2026-05-08 10:15:43

HTTP Forms Without Forms

Time of First Successful Submission: 2026-05-08 10:22:17

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-05-08 19:56:26

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-05-09 06:50:05

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-05-09 07:39:02

HTTP Redirects (curl)

Time of First Successful Submission: 2026-05-09 08:07:30

HTTP Redirects (python)

Time of First Successful Submission: 2026-05-09 08:12:50

HTTP Cookies (curl)

Time of First Successful Submission: 2026-05-09 08:25:16

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-05-09 08:34:56

HTTP Cookies (python)

Time of First Successful Submission: 2026-05-09 08:51:38

Server State (python)

Time of First Successful Submission: 2026-05-09 09:43:16

Listening Web

Time of First Successful Submission: 2026-05-09 09:59:10

Speaking Redirects

Time of First Successful Submission: 2026-05-10 08:10:51

JavaScript Redirects

Time of First Successful Submission: 2026-05-10 10:24:25

Including JavaScript

Time of First Successful Submission: 2026-05-10 11:00:46

HTTP (javascript)

Time of First Successful Submission: 2026-05-10 11:15:37

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-05-10 11:19:15

HTTP Forms (javascript)

Time of First Successful Submission: 2026-05-10 11:22:40

cat

Time of First Successful Submission: 2026-05-10 12:09:15

more

Time of First Successful Submission: 2026-05-10 12:10:04

less

Time of First Successful Submission: 2026-05-10 12:10:44

tail

Time of First Successful Submission: 2026-05-10 12:11:17

head

Time of First Successful Submission: 2026-05-10 14:03:21

sort

Time of First Successful Submission: 2026-05-10 14:10:23

vim

Time of First Successful Submission: 2026-05-10 16:38:46

emacs

Time of First Successful Submission: 2026-05-10 16:39:24

nano

Time of First Successful Submission: 2026-05-10 16:40:29

rev

Time of First Successful Submission: 2026-05-10 16:41:28

od

Time of First Successful Submission: 2026-05-10 17:40:47

hd

Time of First Successful Submission: 2026-05-10 17:44:03

xxd

Time of First Successful Submission: 2026-05-10 17:53:33

base32

Time of First Successful Submission: 2026-05-10 18:16:47

base64

Time of First Successful Submission: 2026-05-10 18:19:12

split

Time of First Successful Submission: 2026-05-10 20:20:12

gzip

Time of First Successful Submission: 2026-05-10 21:12:25

bzip2

Time of First Successful Submission: 2026-05-11 10:07:58

zip

Time of First Successful Submission: 2026-05-11 10:21:26

tar

Time of First Successful Submission: 2026-05-11 10:36:08

ar

Time of First Successful Submission: 2026-05-11 15:34:02

cpio

Time of First Successful Submission: 2026-05-11 15:39:15

genisoimage

Time of First Successful Submission: 2026-05-11 16:02:43

env

Time of First Successful Submission: 2026-05-11 16:20:57

find

Time of First Successful Submission: 2026-05-11 16:26:26

make

Time of First Successful Submission: 2026-05-11 16:30:49

nice

Time of First Successful Submission: 2026-05-11 20:45:08

timeout

Time of First Successful Submission: 2026-05-11 21:04:27

stdbuf

Time of First Successful Submission: 2026-05-11 21:06:04

setarch

Time of First Successful Submission: 2026-05-12 07:44:16

watch

Time of First Successful Submission: 2026-05-12 07:47:18

socat

Time of First Successful Submission: 2026-05-12 07:49:42

whiptail

Time of First Successful Submission: 2026-05-12 07:51:52

awk

Time of First Successful Submission: 2026-05-12 07:55:48

sed

Time of First Successful Submission: 2026-05-12 07:57:50

ed

Time of First Successful Submission: 2026-05-12 07:59:55

chown

Time of First Successful Submission: 2026-05-12 08:01:20

chmod

Time of First Successful Submission: 2026-05-12 08:02:05

cp

Time of First Successful Submission: 2026-05-12 08:07:18

mv

Time of First Successful Submission: 2026-05-12 08:15:49

perl

Time of First Successful Submission: 2026-05-12 08:17:55

python

Time of First Successful Submission: 2026-05-12 08:19:06

ruby

Time of First Successful Submission: 2026-05-12 08:23:12

bash

Time of First Successful Submission: 2026-05-12 08:29:08

date

Time of First Successful Submission: 2026-05-12 08:32:05

dmesg

Time of First Successful Submission: 2026-05-12 08:34:04

wc

Time of First Successful Submission: 2026-05-12 08:54:45

gcc

Time of First Successful Submission: 2026-05-12 08:57:47

as

Time of First Successful Submission: 2026-05-12 08:59:04

wget

Time of First Successful Submission: 2026-05-11 21:02:04

ssh-keygen

Time of First Successful Submission: 2026-05-11 16:39:50

SQL Queries

Time of First Successful Submission: 2026-05-02 13:11:09

Filtering SQL

Time of First Successful Submission: 2026-05-02 13:16:55

Choosing Columns

Time of First Successful Submission: 2026-05-02 13:20:36

Exclusionary Filtering

Time of First Successful Submission: 2026-05-02 17:45:10

Filtering Strings

Time of First Successful Submission: 2026-05-02 17:51:05

Filtering on Expressions

Time of First Successful Submission: 2026-05-02 17:55:38

SELECTing Expressions

Time of First Successful Submission: 2026-05-02 18:01:42

Composite Conditions

Time of First Successful Submission: 2026-05-02 18:03:35

Reaching Your LIMITs

Time of First Successful Submission: 2026-05-02 18:05:36

Querying Metadata

Time of First Successful Submission: 2026-05-02 18:10:25


GCA CTF

11 / 104 9604 / 45872


Using the Terminal

Time of First Successful Submission: 2026-04-22 07:55:33

Using the VSCode Workspace

Time of First Successful Submission: 2026-04-22 11:26:55

Using the GUI Desktop

Time of First Successful Submission: 2026-04-22 11:28:16

Pasting into the Desktop

Time of First Successful Submission: 2026-04-22 12:48:22

Restarting Challenges

Time of First Successful Submission: 2026-04-22 08:49:48

Getting Help

Time of First Successful Submission: 2026-04-22 08:46:39

Challenge Programs

Time of First Successful Submission: 2026-04-22 08:56:58

The Flag File

Time of First Successful Submission: 2026-04-22 21:14:21

Using Privileged Mode

Time of First Successful Submission: 2026-04-22 21:17:22

Persistent Home Directories - One

Time of First Successful Submission: 2026-04-22 22:10:26

Persistent Home Directories - Two

Time of First Successful Submission: 2026-04-22 22:12:51