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Intro to Programming Languages

15 / 234 9045 / 31348

Commands

Time of First Successful Submission: 2026-03-08 12:48:13

Command Arguments

Time of First Successful Submission: 2026-03-08 12:49:17

Command History

Time of First Successful Submission: 2026-03-08 14:31:07

The Root Path

Time of First Successful Submission: 2026-03-08 14:55:06

Absolute Paths

Time of First Successful Submission: 2026-03-08 14:56:41

Changing position

Time of First Successful Submission: 2026-03-08 15:02:11

Changing to an Absolute Path

Time of First Successful Submission: 2026-03-08 15:05:58

Relative Paths

Time of First Successful Submission: 2026-03-08 15:08:27

Cat

Time of First Successful Submission: 2026-03-08 15:19:03

Ls

Time of First Successful Submission: 2026-03-08 15:30:40

Ls All

Time of First Successful Submission: 2026-03-08 15:36:37

Find

Time of First Successful Submission: 2026-03-08 15:52:17

Piping Echo

Time of First Successful Submission: 2026-03-08 19:17:48

Piping Stdout

Time of First Successful Submission: 2026-03-08 19:19:49

Piping Stdin

Time of First Successful Submission: 2026-03-08 19:28:26

Intro to Cybersecurity

29 / 183 8653 / 19783

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-03-13 20:27:49

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-03-13 21:10:22

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-03-13 21:15:25

Reading Endianness (Python)

Time of First Successful Submission: 2026-03-14 05:52:09

Reading Endianness (C)

Time of First Successful Submission: 2026-03-14 06:10:23

Reading Endianness (x86)

Time of First Successful Submission: 2026-03-14 06:13:57

Version Information (Python)

Time of First Successful Submission: 2026-03-14 06:31:58

Version Information (C)

Time of First Successful Submission: 2026-03-14 06:52:12

Version Information (x86)

Time of First Successful Submission: 2026-03-14 07:11:45

Metadata and Data (Python)

Time of First Successful Submission: 2026-03-14 07:47:56

Metadata and Data (C)

Time of First Successful Submission: 2026-03-14 08:51:23

Metadata and Data (x86)

Time of First Successful Submission: 2026-03-14 08:59:43

Input Restrictions (Python)

Time of First Successful Submission: 2026-03-14 09:07:18

Input Restrictions (C)

Time of First Successful Submission: 2026-03-14 09:18:26

Input Restrictions (x86)

Time of First Successful Submission: 2026-03-14 09:25:37

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-03-14 09:36:57

Behold the cIMG! (C)

Time of First Successful Submission: 2026-03-14 11:49:26

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-03-14 11:52:26

A Basic cIMG (Python)

Time of First Successful Submission: 2026-03-14 12:02:46

A Basic cIMG (C)

Time of First Successful Submission: 2026-03-14 12:35:40

A Basic cIMG (x86)

Time of First Successful Submission: 2026-03-14 12:39:43

Internal State Mini (C)

Time of First Successful Submission: 2026-03-14 14:49:19

Internal State Mini (x86)

Time of First Successful Submission: 2026-03-14 15:13:14

Internal State (C)

Time of First Successful Submission: 2026-03-15 13:31:55

Internal State (x86)

Time of First Successful Submission: 2026-03-15 14:03:41

File Formats: Directives (C)

Time of First Successful Submission: 2026-03-15 15:00:38

File Formats: Directives (x86)

Time of First Successful Submission: 2026-03-15 15:46:04

The Patch Directive

Time of First Successful Submission: 2026-03-15 18:09:05

Your First Overflow (easy)

Time of First Successful Submission: 2026-03-17 20:51:19

Start Here

10 / 12 19402 / 42496

Using the Terminal

Time of First Successful Submission: 2026-03-08 11:39:19

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-08 11:41:37

Using the GUI Desktop

Time of First Successful Submission: 2026-03-08 11:49:03

Pasting into the Desktop

Time of First Successful Submission: 2026-03-08 11:51:14

Restarting Challenges

Time of First Successful Submission: 2026-03-08 12:01:37

Challenge Programs

Time of First Successful Submission: 2026-03-10 08:54:20

The Flag File

Time of First Successful Submission: 2026-03-10 08:56:19

Using Privileged Mode

Time of First Successful Submission: 2026-03-10 09:00:02

Persistent Home Directories - One

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Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-10 09:05:25

Linux Luminarium

128 / 128 2374 / 31750

Intro to Commands

Time of First Successful Submission: 2026-03-08 12:48:13

Intro to Arguments

Time of First Successful Submission: 2026-03-08 12:49:17

Command History

Time of First Successful Submission: 2026-03-08 14:31:07

The Root

Time of First Successful Submission: 2026-03-08 14:55:06

Program and absolute paths

Time of First Successful Submission: 2026-03-08 14:56:41

Position thy self

Time of First Successful Submission: 2026-03-08 15:02:11

Position elsewhere

Time of First Successful Submission: 2026-03-08 15:05:58

implicit relative paths, from /

Time of First Successful Submission: 2026-03-08 15:08:27

explicit relative paths, from /

Time of First Successful Submission: 2026-03-08 15:10:43

implicit relative path

Time of First Successful Submission: 2026-03-08 15:12:34

home sweet home

Time of First Successful Submission: 2026-03-08 15:16:46

cat: not the pet, but the command!

Time of First Successful Submission: 2026-03-08 15:19:03

catting absolute paths

Time of First Successful Submission: 2026-03-08 15:20:26

more catting practice

Time of First Successful Submission: 2026-03-08 15:24:17

grepping for a needle in a haystack

Time of First Successful Submission: 2026-03-08 15:26:07

comparing files

Time of First Successful Submission: 2026-03-08 15:27:56

listing files

Time of First Successful Submission: 2026-03-08 15:30:40

touching files

Time of First Successful Submission: 2026-03-08 15:31:40

removing files

Time of First Successful Submission: 2026-03-08 15:32:32

moving files

Time of First Successful Submission: 2026-03-08 15:34:52

copying files

Time of First Successful Submission: 2026-03-08 15:35:36

hidden files

Time of First Successful Submission: 2026-03-08 15:36:37

An Epic Filesystem Quest

Time of First Successful Submission: 2026-03-08 15:49:20

making directories

Time of First Successful Submission: 2026-03-08 15:50:41

finding files

Time of First Successful Submission: 2026-03-08 15:52:17

linking files

Time of First Successful Submission: 2026-03-08 16:14:36

Learning From Documentation

Time of First Successful Submission: 2026-03-08 16:52:26

Learning Complex Usage

Time of First Successful Submission: 2026-03-08 16:54:38

Reading Manuals

Time of First Successful Submission: 2026-03-08 16:57:43

Searching Manuals

Time of First Successful Submission: 2026-03-08 16:59:26

Searching For Manuals

Time of First Successful Submission: 2026-03-08 17:10:55

Helpful Programs

Time of First Successful Submission: 2026-03-08 17:13:48

Help for Builtins

Time of First Successful Submission: 2026-03-08 17:19:20

Matching with *

Time of First Successful Submission: 2026-03-08 17:26:38

Matching with ?

Time of First Successful Submission: 2026-03-08 17:28:44

Matching with []

Time of First Successful Submission: 2026-03-08 17:31:29

Matching paths with []

Time of First Successful Submission: 2026-03-08 17:32:59

Multiple globs

Time of First Successful Submission: 2026-03-08 17:36:18

Mixing globs

Time of First Successful Submission: 2026-03-08 17:54:08

Exclusionary globbing

Time of First Successful Submission: 2026-03-08 17:56:15

Tab completion

Time of First Successful Submission: 2026-03-08 17:58:13

Multiple options for tab completion

Time of First Successful Submission: 2026-03-08 18:01:10

Tab completion on commands

Time of First Successful Submission: 2026-03-08 18:03:12

Redirecting output

Time of First Successful Submission: 2026-03-08 19:17:48

Redirecting more output

Time of First Successful Submission: 2026-03-08 19:19:49

Appending output

Time of First Successful Submission: 2026-03-08 19:22:45

Redirecting errors

Time of First Successful Submission: 2026-03-08 19:25:38

Redirecting input

Time of First Successful Submission: 2026-03-08 19:28:26

Grepping stored results

Time of First Successful Submission: 2026-03-08 19:30:34

Grepping live output

Time of First Successful Submission: 2026-03-08 19:32:07

Grepping errors

Time of First Successful Submission: 2026-03-08 19:34:14

Filtering with grep -v

Time of First Successful Submission: 2026-03-08 19:35:42

Filtering with sed

Time of First Successful Submission: 2026-03-08 19:39:45

Duplicating piped data with tee

Time of First Successful Submission: 2026-03-08 19:54:26

Process substitution for input

Time of First Successful Submission: 2026-03-08 19:58:53

Writing to multiple programs

Time of First Successful Submission: 2026-03-08 20:08:39

Split-piping stderr and stdout

Time of First Successful Submission: 2026-03-09 05:43:08

Named pipes

Time of First Successful Submission: 2026-03-09 05:52:37

Printing Variables

Time of First Successful Submission: 2026-03-09 09:22:36

Setting Variables

Time of First Successful Submission: 2026-03-09 09:27:31

Multi-word Variables

Time of First Successful Submission: 2026-03-09 09:29:10

Exporting Variables

Time of First Successful Submission: 2026-03-09 09:33:27

Printing Exported Variables

Time of First Successful Submission: 2026-03-09 09:36:48

Storing Command Output

Time of First Successful Submission: 2026-03-09 09:38:58

Reading Input

Time of First Successful Submission: 2026-03-09 09:44:44

Reading Files

Time of First Successful Submission: 2026-03-09 09:47:38

Translating characters

Time of First Successful Submission: 2026-03-09 09:53:32

Deleting characters

Time of First Successful Submission: 2026-03-09 09:54:59

Deleting newlines

Time of First Successful Submission: 2026-03-09 10:00:31

Extracting the first lines with head

Time of First Successful Submission: 2026-03-09 10:04:05

Extracting specific sections of text

Time of First Successful Submission: 2026-03-09 10:11:37

Sorting data

Time of First Successful Submission: 2026-03-09 10:15:03

Listing Processes

Time of First Successful Submission: 2026-03-09 10:56:23

Killing Processes

Time of First Successful Submission: 2026-03-09 11:11:00

Interrupting Processes

Time of First Successful Submission: 2026-03-09 11:12:25

Killing Misbehaving Processes

Time of First Successful Submission: 2026-03-09 11:22:23

Suspending Processes

Time of First Successful Submission: 2026-03-09 11:25:19

Resuming Processes

Time of First Successful Submission: 2026-03-09 11:26:47

Backgrounding Processes

Time of First Successful Submission: 2026-03-09 11:30:13

Foregrounding Processes

Time of First Successful Submission: 2026-03-09 11:33:40

Starting Backgrounded Processes

Time of First Successful Submission: 2026-03-09 11:37:40

Process Exit Codes

Time of First Successful Submission: 2026-03-09 11:40:09

Becoming root with su

Time of First Successful Submission: 2026-03-09 12:37:04

Other users with su

Time of First Successful Submission: 2026-03-09 12:38:05

Cracking passwords

Time of First Successful Submission: 2026-03-09 12:43:00

Using sudo

Time of First Successful Submission: 2026-03-09 12:47:59

Changing File Ownership

Time of First Successful Submission: 2026-03-09 16:20:35

Groups and Files

Time of First Successful Submission: 2026-03-09 16:32:14

Fun With Groups Names

Time of First Successful Submission: 2026-03-09 16:35:58

Changing Permissions

Time of First Successful Submission: 2026-03-09 16:41:51

Executable Files

Time of First Successful Submission: 2026-03-09 16:45:07

Permission Tweaking Practice

Time of First Successful Submission: 2026-03-09 16:55:13

Permissions Setting Practice

Time of First Successful Submission: 2026-03-09 17:07:54

The SUID Bit

Time of First Successful Submission: 2026-03-09 17:13:11

Chaining with Semicolons

Time of First Successful Submission: 2026-03-09 18:04:55

Building on Success

Time of First Successful Submission: 2026-03-09 18:08:28

Handling Failure

Time of First Successful Submission: 2026-03-09 18:12:50

Your First Shell Script

Time of First Successful Submission: 2026-03-09 18:21:12

Redirecting Script Output

Time of First Successful Submission: 2026-03-09 18:24:17

Executable Shell Scripts

Time of First Successful Submission: 2026-03-09 18:27:06

Understanding Shebangs

Time of First Successful Submission: 2026-03-09 18:52:40

Scripting with Arguments

Time of First Successful Submission: 2026-03-09 18:56:32

Scripting with Conditionals

Time of First Successful Submission: 2026-03-09 19:00:04

Scripting with Default Cases

Time of First Successful Submission: 2026-03-09 19:02:30

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-03-09 19:05:56

Reading Shell Scripts

Time of First Successful Submission: 2026-03-09 19:13:00

Launching Screen

Time of First Successful Submission: 2026-03-10 05:48:29

Detaching and Attaching

Time of First Successful Submission: 2026-03-10 05:53:17

Finding Sessions

Time of First Successful Submission: 2026-03-10 05:56:15

Switching Windows

Time of First Successful Submission: 2026-03-10 05:58:17

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-03-10 06:00:06

Switching Windows (tmux)

Time of First Successful Submission: 2026-03-10 06:03:45

The PATH Variable

Time of First Successful Submission: 2026-03-10 06:09:50

Setting PATH

Time of First Successful Submission: 2026-03-10 06:15:04

Finding Commands

Time of First Successful Submission: 2026-03-10 06:18:06

Adding Commands

Time of First Successful Submission: 2026-03-10 06:34:24

Hijacking Commands

Time of First Successful Submission: 2026-03-10 06:46:06

Bashrc Backdoor

Time of First Successful Submission: 2026-03-10 06:52:41

Sniffing Input

Time of First Successful Submission: 2026-03-10 07:07:02

Overshared Directories

Time of First Successful Submission: 2026-03-10 07:27:02

Tricky Linking

Time of First Successful Submission: 2026-03-10 07:39:24

Sniffing Process Arguments

Time of First Successful Submission: 2026-03-10 07:47:43

Snooping on Configurations

Time of First Successful Submission: 2026-03-10 07:53:18

The Fork Bomb

Time of First Successful Submission: 2026-03-10 08:14:51

Disk-Space Doomsday

Time of First Successful Submission: 2026-03-10 08:19:54

rm -rf /

Time of First Successful Submission: 2026-03-10 08:24:43

Life after rm -rf /

Time of First Successful Submission: 2026-03-10 08:32:42

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-03-10 08:51:56

Computing 101

94 / 94 279 / 21255

Your First Register

Time of First Successful Submission: 2026-03-09 20:41:28

Your First Syscall

Time of First Successful Submission: 2026-03-09 20:43:21

Exit Codes

Time of First Successful Submission: 2026-03-09 20:49:26

Building Executables

Time of First Successful Submission: 2026-03-09 20:56:26

Moving Between Registers

Time of First Successful Submission: 2026-03-09 21:03:59

Loading From Memory

Time of First Successful Submission: 2026-03-10 12:00:19

More Loading Practice

Time of First Successful Submission: 2026-03-10 12:02:52

Dereferencing Pointers

Time of First Successful Submission: 2026-03-10 12:06:22

Dereferencing Yourself

Time of First Successful Submission: 2026-03-10 12:09:48

Dereferencing with Offsets

Time of First Successful Submission: 2026-03-10 12:13:41

Stored Addresses

Time of First Successful Submission: 2026-03-10 12:21:41

Double Dereference

Time of First Successful Submission: 2026-03-10 12:32:56

The Stack

Time of First Successful Submission: 2026-03-10 13:15:52

Stack Offsets

Time of First Successful Submission: 2026-03-10 14:25:46

Program Arguments on the Stack

Time of First Successful Submission: 2026-03-10 14:30:19

Popping From the Stack

Time of First Successful Submission: 2026-03-10 14:34:26

Disassembling Programs

Time of First Successful Submission: 2026-03-10 17:32:36

Tracing Syscalls

Time of First Successful Submission: 2026-03-10 17:38:50

Starting GDB

Time of First Successful Submission: 2026-03-10 17:40:13

Quitting GDB

Time of First Successful Submission: 2026-03-10 17:41:41

Starting Programs in GDB

Time of First Successful Submission: 2026-03-10 17:48:35

Disassembling in GDB

Time of First Successful Submission: 2026-03-10 17:49:42

Stepping Through Instructions

Time of First Successful Submission: 2026-03-10 17:51:47

Reading Register Values

Time of First Successful Submission: 2026-03-10 17:54:24

Popping Stack Values

Time of First Successful Submission: 2026-03-10 17:57:48

Examining Memory

Time of First Successful Submission: 2026-03-10 18:06:04

Examining Stack Pointers

Time of First Successful Submission: 2026-03-10 18:27:44

Cooperative Debugging

Time of First Successful Submission: 2026-03-10 18:37:37

Writing Output

Time of First Successful Submission: 2026-03-10 21:17:55

Chaining Syscalls

Time of First Successful Submission: 2026-03-10 21:22:02

Writing Strings

Time of First Successful Submission: 2026-03-10 21:24:39

Reading Data

Time of First Successful Submission: 2026-03-11 06:01:03

Opening Files

Time of First Successful Submission: 2026-03-11 07:02:07

Hardcoding the Filename

Time of First Successful Submission: 2026-03-11 10:04:25

Comparing Values

Time of First Successful Submission: 2026-03-11 16:00:59

Comparing Characters

Time of First Successful Submission: 2026-03-11 16:08:37

Conditional Control Flow

Time of First Successful Submission: 2026-03-11 16:28:03

Comparing Strings

Time of First Successful Submission: 2026-03-11 16:36:22

Reverse the Password

Time of First Successful Submission: 2026-03-11 16:42:43

Conditionals Without Conditionals

Time of First Successful Submission: 2026-03-11 17:16:51

Looping

Time of First Successful Submission: 2026-03-11 17:43:52

Reverse the Calculation

Time of First Successful Submission: 2026-03-11 18:25:38

Reverse the Reverse

Time of First Successful Submission: 2026-03-11 18:27:16

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-03-11 18:30:38

Loops on Data

Time of First Successful Submission: 2026-03-11 18:34:47

set-register

Time of First Successful Submission: 2026-03-11 18:59:43

set-multiple-registers

Time of First Successful Submission: 2026-03-11 19:03:15

add-to-register

Time of First Successful Submission: 2026-03-11 19:08:03

linear-equation-registers

Time of First Successful Submission: 2026-03-11 19:12:07

integer-division

Time of First Successful Submission: 2026-03-11 19:22:22

modulo-operation

Time of First Successful Submission: 2026-03-11 19:28:08

set-upper-byte

Time of First Successful Submission: 2026-03-11 19:32:39

efficient-modulo

Time of First Successful Submission: 2026-03-11 19:44:58

byte-extraction

Time of First Successful Submission: 2026-03-12 06:00:58

bitwise-and

Time of First Successful Submission: 2026-03-12 06:05:14

check-even

Time of First Successful Submission: 2026-03-12 06:31:15

memory-read

Time of First Successful Submission: 2026-03-12 07:51:59

memory-write

Time of First Successful Submission: 2026-03-12 08:38:25

memory-increment

Time of First Successful Submission: 2026-03-12 08:57:16

byte-access

Time of First Successful Submission: 2026-03-12 09:16:29

memory-size-access

Time of First Successful Submission: 2026-03-12 09:22:39

little-endian-write

Time of First Successful Submission: 2026-03-12 09:57:06

memory-sum

Time of First Successful Submission: 2026-03-12 10:20:31

stack-subtraction

Time of First Successful Submission: 2026-03-12 10:27:21

swap-stack-values

Time of First Successful Submission: 2026-03-12 10:29:50

average-stack-values

Time of First Successful Submission: 2026-03-12 10:41:34

absolute-jump

Time of First Successful Submission: 2026-03-12 12:21:33

relative-jump

Time of First Successful Submission: 2026-03-12 12:43:49

jump-trampoline

Time of First Successful Submission: 2026-03-12 13:04:47

conditional-jump

Time of First Successful Submission: 2026-03-12 14:38:30

indirect-jump

Time of First Successful Submission: 2026-03-12 15:17:21

average-loop

Time of First Successful Submission: 2026-03-12 17:32:53

count-non-zero

Time of First Successful Submission: 2026-03-12 18:08:07

string-lower

Time of First Successful Submission: 2026-03-12 19:13:58

most-common-byte

Time of First Successful Submission: 2026-03-13 08:12:53

Exit

Time of First Successful Submission: 2026-03-18 09:22:32

Socket

Time of First Successful Submission: 2026-03-18 09:33:20

Bind

Time of First Successful Submission: 2026-03-18 09:41:31

Listen

Time of First Successful Submission: 2026-03-18 09:53:16

Accept

Time of First Successful Submission: 2026-03-18 09:57:26

Static Response

Time of First Successful Submission: 2026-03-18 10:07:05

Dynamic Response

Time of First Successful Submission: 2026-03-18 10:33:07

Iterative GET Server

Time of First Successful Submission: 2026-03-18 10:45:50

Concurrent GET Server

Time of First Successful Submission: 2026-03-18 14:34:02

Concurrent POST Server

Time of First Successful Submission: 2026-03-18 14:41:25

Web Server

Time of First Successful Submission: 2026-03-18 14:45:17

Debugging Programs

Time of First Successful Submission: 2026-03-18 15:56:28

Inspecting Registers

Time of First Successful Submission: 2026-03-18 16:02:40

Examining Memory

Time of First Successful Submission: 2026-03-18 16:07:35

Setting Breakpoints

Time of First Successful Submission: 2026-03-18 16:30:17

GDB Scripting

Time of First Successful Submission: 2026-03-18 16:57:25

Modifying Data

Time of First Successful Submission: 2026-03-18 17:29:15

Modifying Execution

Time of First Successful Submission: 2026-03-18 17:38:25

Broken Functions

Time of First Successful Submission: 2026-03-18 17:54:55

Playing With Programs

116 / 116 832 / 23210

What's the password?

Time of First Successful Submission: 2026-03-19 08:07:08

... and again!

Time of First Successful Submission: 2026-03-19 08:08:08

Newline Troubles

Time of First Successful Submission: 2026-03-19 08:11:09

Reasoning about files

Time of First Successful Submission: 2026-03-19 08:15:49

Specifying Filenames

Time of First Successful Submission: 2026-03-19 08:18:19

Binary and Hex Encoding

Time of First Successful Submission: 2026-03-19 08:51:58

More Hex

Time of First Successful Submission: 2026-03-19 08:53:24

Decoding Hex

Time of First Successful Submission: 2026-03-19 08:57:53

Decoding Practice

Time of First Successful Submission: 2026-03-19 09:03:13

Encoding Practice

Time of First Successful Submission: 2026-03-19 09:06:44

Hex-encoding ASCII

Time of First Successful Submission: 2026-03-19 11:20:03

Nested Encoding

Time of First Successful Submission: 2026-03-19 11:39:29

Hex-encoding UTF-8

Time of First Successful Submission: 2026-03-19 11:51:57

UTF Mixups

Time of First Successful Submission: 2026-03-19 12:08:21

Modifying Encoded Data

Time of First Successful Submission: 2026-03-19 12:27:48

Decoding Base64

Time of First Successful Submission: 2026-03-19 15:00:13

Encoding Base64

Time of First Successful Submission: 2026-03-19 15:13:38

Dealing with Obfuscation

Time of First Successful Submission: 2026-03-19 15:22:51

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-03-19 15:28:39

Your First HTTP Request

Time of First Successful Submission: 2026-03-20 08:10:38

Reading Flask

Time of First Successful Submission: 2026-03-20 08:12:54

Commented Data

Time of First Successful Submission: 2026-03-20 08:33:35

HTTP Metadata

Time of First Successful Submission: 2026-03-20 08:43:39

HTTP (netcat)

Time of First Successful Submission: 2026-03-20 08:49:06

HTTP Paths (netcat)

Time of First Successful Submission: 2026-03-20 08:51:18

HTTP (curl)

Time of First Successful Submission: 2026-03-20 08:53:36

HTTP (python)

Time of First Successful Submission: 2026-03-20 08:57:54

HTTP Host Header (python)

Time of First Successful Submission: 2026-03-20 09:15:02

HTTP Host Header (curl)

Time of First Successful Submission: 2026-03-20 09:16:51

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-03-20 09:18:24

URL Encoding (netcat)

Time of First Successful Submission: 2026-03-20 09:22:30

HTTP GET Parameters

Time of First Successful Submission: 2026-03-20 09:33:06

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-03-20 09:37:02

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-03-20 09:47:29

HTTP Forms

Time of First Successful Submission: 2026-03-20 10:15:11

HTTP Forms (curl)

Time of First Successful Submission: 2026-03-20 10:18:07

HTTP Forms (netcat)

Time of First Successful Submission: 2026-03-20 10:44:01

HTTP Forms (python)

Time of First Successful Submission: 2026-03-20 10:53:37

HTTP Forms Without Forms

Time of First Successful Submission: 2026-03-20 12:41:30

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-03-20 12:47:56

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-03-20 13:01:26

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-03-20 13:14:00

HTTP Redirects (curl)

Time of First Successful Submission: 2026-03-20 13:16:11

HTTP Redirects (python)

Time of First Successful Submission: 2026-03-20 13:18:24

HTTP Cookies (curl)

Time of First Successful Submission: 2026-03-20 13:39:26

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-03-20 13:44:14

HTTP Cookies (python)

Time of First Successful Submission: 2026-03-20 13:46:42

Server State (python)

Time of First Successful Submission: 2026-03-20 14:50:23

Listening Web

Time of First Successful Submission: 2026-03-20 14:56:33

Speaking Redirects

Time of First Successful Submission: 2026-03-20 15:15:53

JavaScript Redirects

Time of First Successful Submission: 2026-03-20 15:34:01

Including JavaScript

Time of First Successful Submission: 2026-03-20 15:41:18

HTTP (javascript)

Time of First Successful Submission: 2026-03-20 15:52:22

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-03-20 16:33:13

HTTP Forms (javascript)

Time of First Successful Submission: 2026-03-20 16:58:12

cat

Time of First Successful Submission: 2026-03-21 07:04:51

more

Time of First Successful Submission: 2026-03-21 07:05:29

less

Time of First Successful Submission: 2026-03-21 07:06:16

tail

Time of First Successful Submission: 2026-03-21 07:07:21

head

Time of First Successful Submission: 2026-03-21 07:08:23

sort

Time of First Successful Submission: 2026-03-21 07:09:10

vim

Time of First Successful Submission: 2026-03-21 07:09:47

emacs

Time of First Successful Submission: 2026-03-21 07:10:57

nano

Time of First Successful Submission: 2026-03-21 07:12:27

rev

Time of First Successful Submission: 2026-03-21 07:15:25

od

Time of First Successful Submission: 2026-03-21 07:21:47

hd

Time of First Successful Submission: 2026-03-21 07:23:09

xxd

Time of First Successful Submission: 2026-03-21 07:24:43

base32

Time of First Successful Submission: 2026-03-21 07:25:45

base64

Time of First Successful Submission: 2026-03-21 07:26:21

split

Time of First Successful Submission: 2026-03-21 07:31:10

gzip

Time of First Successful Submission: 2026-03-21 07:41:37

bzip2

Time of First Successful Submission: 2026-03-21 08:06:51

zip

Time of First Successful Submission: 2026-03-21 08:17:51

tar

Time of First Successful Submission: 2026-03-21 08:19:42

ar

Time of First Successful Submission: 2026-03-21 10:06:23

cpio

Time of First Successful Submission: 2026-03-21 10:12:15

genisoimage

Time of First Successful Submission: 2026-03-21 10:19:40

env

Time of First Successful Submission: 2026-03-21 10:43:35

find

Time of First Successful Submission: 2026-03-21 11:13:49

make

Time of First Successful Submission: 2026-03-21 11:18:45

nice

Time of First Successful Submission: 2026-03-21 11:20:53

timeout

Time of First Successful Submission: 2026-03-21 11:24:58

stdbuf

Time of First Successful Submission: 2026-03-21 11:27:02

setarch

Time of First Successful Submission: 2026-03-21 11:28:44

watch

Time of First Successful Submission: 2026-03-21 11:32:02

socat

Time of First Successful Submission: 2026-03-21 11:34:42

whiptail

Time of First Successful Submission: 2026-03-21 11:39:46

awk

Time of First Successful Submission: 2026-03-21 11:42:32

sed

Time of First Successful Submission: 2026-03-21 11:43:28

ed

Time of First Successful Submission: 2026-03-21 11:45:02

chown

Time of First Successful Submission: 2026-03-21 11:51:11

chmod

Time of First Successful Submission: 2026-03-21 13:27:11

cp

Time of First Successful Submission: 2026-03-21 11:53:40

mv

Time of First Successful Submission: 2026-03-21 11:59:36

perl

Time of First Successful Submission: 2026-03-21 12:09:06

python

Time of First Successful Submission: 2026-03-21 12:09:55

ruby

Time of First Successful Submission: 2026-03-21 12:12:48

bash

Time of First Successful Submission: 2026-03-21 13:01:50

date

Time of First Successful Submission: 2026-03-21 13:04:20

dmesg

Time of First Successful Submission: 2026-03-21 13:05:22

wc

Time of First Successful Submission: 2026-03-21 13:07:00

gcc

Time of First Successful Submission: 2026-03-21 13:08:46

as

Time of First Successful Submission: 2026-03-21 13:10:08

wget

Time of First Successful Submission: 2026-03-21 13:15:54

ssh-keygen

Time of First Successful Submission: 2026-03-21 13:25:34

SQL Queries

Time of First Successful Submission: 2026-03-22 05:44:14

Filtering SQL

Time of First Successful Submission: 2026-03-22 05:51:15

Choosing Columns

Time of First Successful Submission: 2026-03-22 05:53:42

Exclusionary Filtering

Time of First Successful Submission: 2026-03-22 06:00:07

Filtering Strings

Time of First Successful Submission: 2026-03-22 06:01:53

Filtering on Expressions

Time of First Successful Submission: 2026-03-22 06:09:51

SELECTing Expressions

Time of First Successful Submission: 2026-03-22 06:31:28

Composite Conditions

Time of First Successful Submission: 2026-03-22 06:42:50

Reaching Your LIMITs

Time of First Successful Submission: 2026-03-22 06:46:12

Querying Metadata

Time of First Successful Submission: 2026-03-22 06:48:21

GCA CTF

10 / 104 19527 / 42773

Using the Terminal

Time of First Successful Submission: 2026-03-08 11:39:19

Using the VSCode Workspace

Time of First Successful Submission: 2026-03-08 11:41:37

Using the GUI Desktop

Time of First Successful Submission: 2026-03-08 11:49:03

Pasting into the Desktop

Time of First Successful Submission: 2026-03-08 11:51:14

Restarting Challenges

Time of First Successful Submission: 2026-03-08 12:01:37

Challenge Programs

Time of First Successful Submission: 2026-03-10 08:54:20

The Flag File

Time of First Successful Submission: 2026-03-10 08:56:19

Using Privileged Mode

Time of First Successful Submission: 2026-03-10 09:00:02

Persistent Home Directories - One

Time of First Successful Submission: 2026-03-10 09:04:42

Persistent Home Directories - Two

Time of First Successful Submission: 2026-03-10 09:05:25