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Triple Dereference

Time of First Successful Submission: 2025-07-03 06:44:22

set-register

Time of First Successful Submission: 2025-07-03 07:10:19

set-multiple-registers

Time of First Successful Submission: 2025-07-03 07:13:50

add-to-register

Time of First Successful Submission: 2025-07-03 07:16:20

linear-equation-registers

Time of First Successful Submission: 2025-07-03 07:22:08

integer-division

Time of First Successful Submission: 2025-07-03 07:41:27

modulo-operation

Time of First Successful Submission: 2025-07-03 07:44:12

set-upper-byte

Time of First Successful Submission: 2025-07-03 07:46:56

efficient-modulo

Time of First Successful Submission: 2025-07-03 07:55:03

byte-extraction

Time of First Successful Submission: 2025-07-03 08:17:30

bitwise-and

Time of First Successful Submission: 2025-07-03 08:23:39

check-even

Time of First Successful Submission: 2025-07-03 08:32:40

memory-read

Time of First Successful Submission: 2025-07-03 08:35:26

memory-write

Time of First Successful Submission: 2025-07-03 08:43:22

memory-increment

Time of First Successful Submission: 2025-07-03 08:46:40

byte-access

Time of First Successful Submission: 2025-07-03 08:54:56

memory-size-access

Time of First Successful Submission: 2025-07-03 09:00:04

little-endian-write

Time of First Successful Submission: 2025-07-03 09:10:27

memory-sum

Time of First Successful Submission: 2025-07-03 09:18:01

stack-subtraction

Time of First Successful Submission: 2025-07-03 09:25:51

swap-stack-values

Time of First Successful Submission: 2025-07-03 09:27:18

average-stack-values

Time of First Successful Submission: 2025-07-03 09:41:29

absolute-jump

Time of First Successful Submission: 2025-07-03 09:44:40

relative-jump

Time of First Successful Submission: 2025-07-03 09:55:31

jump-trampoline

Time of First Successful Submission: 2025-07-03 11:43:00

conditional-jump

Time of First Successful Submission: 2025-07-03 12:06:05

indirect-jump

Time of First Successful Submission: 2025-07-03 12:51:12

average-loop

Time of First Successful Submission: 2025-07-03 13:27:29

count-non-zero

Time of First Successful Submission: 2025-07-03 13:57:51

string-lower

Time of First Successful Submission: 2025-12-23 18:57:55

most-common-byte

Time of First Successful Submission: 2025-12-23 18:59:57

Intro to Programming Languages

15 / 253 2006 / 37367

Commands

Time of First Successful Submission: 2025-07-01 09:44:31

Command Arguments

Time of First Successful Submission: 2025-07-01 09:45:53

Command History

Time of First Successful Submission: 2025-07-01 09:46:33

The Root Path

Time of First Successful Submission: 2025-07-01 09:47:52

Absolute Paths

Time of First Successful Submission: 2025-07-01 09:48:50

Changing position

Time of First Successful Submission: 2025-07-01 09:49:58

Changing to an Absolute Path

Time of First Successful Submission: 2025-07-01 09:50:45

Relative Paths

Time of First Successful Submission: 2025-07-01 09:53:39

Cat

Time of First Successful Submission: 2025-07-01 19:48:29

Ls

Time of First Successful Submission: 2025-07-02 06:26:23

Ls All

Time of First Successful Submission: 2025-07-02 07:04:25

Find

Time of First Successful Submission: 2025-07-02 07:31:26

Piping Echo

Time of First Successful Submission: 2025-07-02 09:14:17

Piping Stdout

Time of First Successful Submission: 2025-07-02 09:15:51

Piping Stdin

Time of First Successful Submission: 2025-07-02 09:21:15

Start Here

12 / 12 482 / 51273

Using the Terminal

Time of First Successful Submission: 2025-12-22 20:39:17

Using the VSCode Workspace

Time of First Successful Submission: 2025-07-01 09:13:29

Using the GUI Desktop

Time of First Successful Submission: 2025-07-01 09:14:55

Pasting into the Desktop

Time of First Successful Submission: 2025-07-01 09:19:10

Restarting Challenges

Time of First Successful Submission: 2025-07-01 09:22:00

Challenge Programs

Time of First Successful Submission: 2025-07-01 09:29:44

The Flag File

Time of First Successful Submission: 2025-07-01 09:30:53

Using Privileged Mode

Time of First Successful Submission: 2025-07-01 09:38:11

Persistent Home Directories - One

Time of First Successful Submission: 2025-07-01 09:39:46

Persistent Home Directories - Two

Time of First Successful Submission: 2025-07-01 09:41:03

Linux Luminarium

128 / 128 983 / 37878

Intro to Commands

Time of First Successful Submission: 2025-07-01 09:44:31

Intro to Arguments

Time of First Successful Submission: 2025-07-01 09:45:53

Command History

Time of First Successful Submission: 2025-07-01 09:46:33

The Root

Time of First Successful Submission: 2025-07-01 09:47:52

Program and absolute paths

Time of First Successful Submission: 2025-07-01 09:48:50

Position thy self

Time of First Successful Submission: 2025-07-01 09:49:58

Position elsewhere

Time of First Successful Submission: 2025-07-01 09:50:45

implicit relative paths, from /

Time of First Successful Submission: 2025-07-01 09:53:39

explicit relative paths, from /

Time of First Successful Submission: 2025-07-01 09:54:50

implicit relative path

Time of First Successful Submission: 2025-07-01 10:01:51

home sweet home

Time of First Successful Submission: 2025-07-01 10:00:52

cat: not the pet, but the command!

Time of First Successful Submission: 2025-07-01 19:48:29

catting absolute paths

Time of First Successful Submission: 2025-07-02 05:54:42

more catting practice

Time of First Successful Submission: 2025-07-02 05:57:27

grepping for a needle in a haystack

Time of First Successful Submission: 2025-07-02 06:04:23

comparing files

Time of First Successful Submission: 2025-12-22 21:02:52

listing files

Time of First Successful Submission: 2025-07-02 06:26:23

touching files

Time of First Successful Submission: 2025-07-02 06:53:56

removing files

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

moving files

Time of First Successful Submission: 2025-07-02 07:03:24

copying files

Time of First Successful Submission: 2025-12-22 21:04:19

hidden files

Time of First Successful Submission: 2025-07-02 07:04:25

An Epic Filesystem Quest

Time of First Successful Submission: 2025-07-02 07:11:51

making directories

Time of First Successful Submission: 2025-07-02 07:12:50

finding files

Time of First Successful Submission: 2025-07-02 07:31:26

linking files

Time of First Successful Submission: 2025-07-02 07:32:59

Learning From Documentation

Time of First Successful Submission: 2025-07-02 07:34:58

Learning Complex Usage

Time of First Successful Submission: 2025-07-02 07:36:00

Reading Manuals

Time of First Successful Submission: 2025-07-02 07:43:51

Searching Manuals

Time of First Successful Submission: 2025-07-02 07:47:30

Searching For Manuals

Time of First Successful Submission: 2025-07-02 07:51:57

Helpful Programs

Time of First Successful Submission: 2025-07-02 07:53:25

Help for Builtins

Time of First Successful Submission: 2025-07-02 07:58:41

Matching with *

Time of First Successful Submission: 2025-07-02 08:57:31

Matching with ?

Time of First Successful Submission: 2025-07-02 08:58:51

Matching with []

Time of First Successful Submission: 2025-07-02 09:00:31

Matching paths with []

Time of First Successful Submission: 2025-07-02 09:01:42

Multiple globs

Time of First Successful Submission: 2025-07-02 09:03:42

Mixing globs

Time of First Successful Submission: 2025-07-02 09:05:05

Exclusionary globbing

Time of First Successful Submission: 2025-07-02 09:07:59

Tab completion

Time of First Successful Submission: 2025-07-02 09:10:33

Multiple options for tab completion

Time of First Successful Submission: 2025-07-02 09:11:54

Tab completion on commands

Time of First Successful Submission: 2025-07-02 09:13:13

Redirecting output

Time of First Successful Submission: 2025-07-02 09:14:17

Redirecting more output

Time of First Successful Submission: 2025-07-02 09:15:51

Appending output

Time of First Successful Submission: 2025-07-02 09:17:51

Redirecting errors

Time of First Successful Submission: 2025-07-02 09:19:51

Redirecting input

Time of First Successful Submission: 2025-07-02 09:21:15

Grepping stored results

Time of First Successful Submission: 2025-07-02 09:23:49

Grepping live output

Time of First Successful Submission: 2025-07-02 09:25:43

Grepping errors

Time of First Successful Submission: 2025-07-02 09:27:13

Filtering with grep -v

Time of First Successful Submission: 2025-07-02 09:28:30

Filtering with sed

Time of First Successful Submission: 2025-12-23 10:14:50

Duplicating piped data with tee

Time of First Successful Submission: 2025-07-02 09:33:50

Process substitution for input

Time of First Successful Submission: 2025-12-23 10:17:49

Writing to multiple programs

Time of First Successful Submission: 2025-07-02 09:41:23

Split-piping stderr and stdout

Time of First Successful Submission: 2025-07-02 09:43:25

Named pipes

Time of First Successful Submission: 2025-12-23 10:21:19

Printing Variables

Time of First Successful Submission: 2025-07-02 09:45:08

Setting Variables

Time of First Successful Submission: 2025-07-02 09:47:11

Multi-word Variables

Time of First Successful Submission: 2025-07-02 09:47:51

Exporting Variables

Time of First Successful Submission: 2025-07-02 09:49:43

Printing Exported Variables

Time of First Successful Submission: 2025-07-02 09:50:26

Storing Command Output

Time of First Successful Submission: 2025-07-02 09:52:53

Reading Input

Time of First Successful Submission: 2025-07-02 09:54:25

Reading Files

Time of First Successful Submission: 2025-07-02 09:57:34

Translating characters

Time of First Successful Submission: 2025-07-02 09:59:39

Deleting characters

Time of First Successful Submission: 2025-07-02 10:00:28

Deleting newlines

Time of First Successful Submission: 2025-07-02 10:01:54

Extracting the first lines with head

Time of First Successful Submission: 2025-07-02 10:03:12

Extracting specific sections of text

Time of First Successful Submission: 2025-07-02 10:05:53

Sorting data

Time of First Successful Submission: 2025-12-23 10:22:36

Listing Processes

Time of First Successful Submission: 2025-07-02 10:46:09

Killing Processes

Time of First Successful Submission: 2025-07-02 10:48:03

Interrupting Processes

Time of First Successful Submission: 2025-07-02 10:48:53

Killing Misbehaving Processes

Time of First Successful Submission: 2025-12-23 10:25:07

Suspending Processes

Time of First Successful Submission: 2025-07-02 10:49:57

Resuming Processes

Time of First Successful Submission: 2025-07-02 10:50:43

Backgrounding Processes

Time of First Successful Submission: 2025-07-02 10:53:45

Foregrounding Processes

Time of First Successful Submission: 2025-07-02 10:54:56

Starting Backgrounded Processes

Time of First Successful Submission: 2025-07-02 10:55:48

Process Exit Codes

Time of First Successful Submission: 2025-07-02 10:57:19

Becoming root with su

Time of First Successful Submission: 2025-07-02 11:57:28

Other users with su

Time of First Successful Submission: 2025-07-02 11:58:22

Cracking passwords

Time of First Successful Submission: 2025-07-02 12:01:59

Using sudo

Time of First Successful Submission: 2025-07-02 12:03:30

Changing File Ownership

Time of First Successful Submission: 2025-07-02 11:02:46

Groups and Files

Time of First Successful Submission: 2025-07-02 11:05:35

Fun With Groups Names

Time of First Successful Submission: 2025-07-02 11:06:34

Changing Permissions

Time of First Successful Submission: 2025-07-02 11:21:37

Executable Files

Time of First Successful Submission: 2025-07-02 11:36:37

Permission Tweaking Practice

Time of First Successful Submission: 2025-07-02 11:48:27

Permissions Setting Practice

Time of First Successful Submission: 2025-07-02 11:51:53

The SUID Bit

Time of First Successful Submission: 2025-07-02 11:54:26

Chaining with Semicolons

Time of First Successful Submission: 2025-07-02 12:06:15

Building on Success

Time of First Successful Submission: 2025-12-23 10:26:47

Handling Failure

Time of First Successful Submission: 2025-12-23 10:27:36

Your First Shell Script

Time of First Successful Submission: 2025-07-02 12:07:59

Redirecting Script Output

Time of First Successful Submission: 2025-07-02 12:09:13

Executable Shell Scripts

Time of First Successful Submission: 2025-07-02 12:10:24

Understanding Shebangs

Time of First Successful Submission: 2025-12-23 10:29:16

Scripting with Arguments

Time of First Successful Submission: 2025-12-23 10:30:10

Scripting with Conditionals

Time of First Successful Submission: 2025-12-23 10:34:58

Scripting with Default Cases

Time of First Successful Submission: 2025-12-23 10:36:18

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-12-23 10:38:20

Reading Shell Scripts

Time of First Successful Submission: 2025-12-23 10:39:34

Launching Screen

Time of First Successful Submission: 2025-12-23 10:41:33

Detaching and Attaching

Time of First Successful Submission: 2025-12-23 10:42:46

Finding Sessions

Time of First Successful Submission: 2025-12-23 10:44:06

Switching Windows

Time of First Successful Submission: 2025-12-23 10:44:58

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-12-23 10:45:43

Switching Windows (tmux)

Time of First Successful Submission: 2025-12-23 10:46:38

The PATH Variable

Time of First Successful Submission: 2025-07-02 12:13:36

Setting PATH

Time of First Successful Submission: 2025-07-02 12:14:54

Finding Commands

Time of First Successful Submission: 2025-07-02 12:16:00

Adding Commands

Time of First Successful Submission: 2025-07-02 12:20:34

Hijacking Commands

Time of First Successful Submission: 2025-07-02 12:23:49

Bashrc Backdoor

Time of First Successful Submission: 2025-07-02 12:26:31

Sniffing Input

Time of First Successful Submission: 2025-07-02 12:33:19

Overshared Directories

Time of First Successful Submission: 2025-07-02 12:35:57

Tricky Linking

Time of First Successful Submission: 2025-07-02 12:40:26

Sniffing Process Arguments

Time of First Successful Submission: 2025-07-02 12:43:22

Snooping on Configurations

Time of First Successful Submission: 2025-07-02 12:46:24

The Fork Bomb

Time of First Successful Submission: 2025-07-02 12:49:48

Disk-Space Doomsday

Time of First Successful Submission: 2025-07-02 12:53:14

rm -rf /

Time of First Successful Submission: 2025-07-02 12:57:53

Life after rm -rf /

Time of First Successful Submission: 2025-07-02 13:03:15

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-07-02 13:06:21

Computing 101

132 / 132 50 / 21229

Your First Register

Time of First Successful Submission: 2025-07-02 13:35:24

Your First Syscall

Time of First Successful Submission: 2025-07-02 13:42:54

Exit Codes

Time of First Successful Submission: 2025-07-02 13:46:20

Building Executables

Time of First Successful Submission: 2025-07-02 13:51:31

Moving Between Registers

Time of First Successful Submission: 2025-07-02 13:57:17

Loading From Memory

Time of First Successful Submission: 2025-07-03 06:24:32

More Loading Practice

Time of First Successful Submission: 2025-07-03 06:27:13

Dereferencing Pointers

Time of First Successful Submission: 2025-07-03 06:29:36

Dereferencing Yourself

Time of First Successful Submission: 2025-07-03 06:31:37

Dereferencing with Offsets

Time of First Successful Submission: 2025-07-03 06:34:15

Stored Addresses

Time of First Successful Submission: 2025-07-03 06:37:48

Double Dereference

Time of First Successful Submission: 2025-07-03 06:41:02

The Stack

Time of First Successful Submission: 2026-07-09 11:46:03

Stack Offsets

Time of First Successful Submission: 2026-07-09 11:49:02

Program Arguments on the Stack

Time of First Successful Submission: 2026-07-09 11:54:16

Popping From the Stack

Time of First Successful Submission: 2026-07-09 11:56:40

Negative Numbers

Time of First Successful Submission: 2026-07-09 12:15:32

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-07-09 12:23:28

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-07-09 12:31:28

Encoding Negatives

Time of First Successful Submission: 2026-07-09 12:44:23

Binary and Hex Encoding

Time of First Successful Submission: 2026-07-09 12:48:04

More Hex

Time of First Successful Submission: 2026-07-09 12:51:23

Decoding Hex

Time of First Successful Submission: 2026-07-10 07:09:22

Mixed Conversions

Time of First Successful Submission: 2026-07-10 08:11:10

Disassembling Programs

Time of First Successful Submission: 2026-07-10 12:52:35

Tracing Syscalls

Time of First Successful Submission: 2025-07-02 14:03:07

Starting GDB

Time of First Successful Submission: 2025-07-02 14:04:12

Quitting GDB

Time of First Successful Submission: 2026-07-10 13:03:03

Starting Programs in GDB

Time of First Successful Submission: 2025-07-02 14:08:17

Disassembling in GDB

Time of First Successful Submission: 2026-07-10 13:06:07

Stepping Through Instructions

Time of First Successful Submission: 2026-07-10 13:08:30

Reading Register Values

Time of First Successful Submission: 2026-07-10 13:09:57

Setting Register Values

Time of First Successful Submission: 2026-07-11 13:13:35

Popping Stack Values

Time of First Successful Submission: 2026-07-11 13:05:35

Examining Memory

Time of First Successful Submission: 2026-07-11 13:14:54

Examining Stack Pointers

Time of First Successful Submission: 2026-07-11 13:17:01

Cooperative Debugging

Time of First Successful Submission: 2026-07-11 13:47:02

Running with Arguments

Time of First Successful Submission: 2026-07-11 17:59:03

Redirecting Input in GDB

Time of First Successful Submission: 2026-07-11 18:02:46

Writing Output

Time of First Successful Submission: 2025-07-03 06:51:02

Chaining Syscalls

Time of First Successful Submission: 2025-07-03 06:56:21

Writing Strings

Time of First Successful Submission: 2025-07-03 06:57:49

Reading Data

Time of First Successful Submission: 2025-07-03 07:05:38

Reading Exactly

Time of First Successful Submission: 2026-07-12 09:11:47

Opening Files

Time of First Successful Submission: 2026-07-12 09:29:31

Hardcoding the Filename

Time of First Successful Submission: 2026-07-12 09:41:27

RIP-Relative Strings

Time of First Successful Submission: 2026-07-12 09:54:46

Comparing Values

Time of First Successful Submission: 2026-07-12 10:06:21

Comparing Characters

Time of First Successful Submission: 2026-07-12 17:02:24

Conditional Control Flow

Time of First Successful Submission: 2026-07-12 17:19:48

Comparing Strings

Time of First Successful Submission: 2026-07-12 17:49:15

Reverse the Password

Time of First Successful Submission: 2026-07-12 18:00:36

Conditionals Without Conditionals

Time of First Successful Submission: 2026-07-12 18:15:36

Recognizing Loops

Time of First Successful Submission: 2026-07-12 18:25:33

Writing Loops

Time of First Successful Submission: 2026-07-12 18:41:15

Writing From a Shared Library

Time of First Successful Submission: 2026-07-12 19:07:55

Returning a Value

Time of First Successful Submission: 2026-07-12 19:13:43

Calling Through a Pointer

Time of First Successful Submission: 2026-07-12 19:23:20

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-07-12 19:26:27

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-07-12 19:38:55

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-07-12 19:44:46

Sign Extension

Time of First Successful Submission: 2026-07-13 08:16:56

Little-Endian Bytes

Time of First Successful Submission: 2026-07-13 08:22:25

Qword by Qword

Time of First Successful Submission: 2026-07-13 08:29:01

Dword by Dword

Time of First Successful Submission: 2026-07-13 08:36:43

Word by Word

Time of First Successful Submission: 2026-07-13 08:39:17

Byte by Byte

Time of First Successful Submission: 2026-07-13 08:42:03

Cracking a Struct

Time of First Successful Submission: 2026-07-14 10:15:29

Scrambled Struct

Time of First Successful Submission: 2026-07-14 15:33:36

Reverse the Calculation

Time of First Successful Submission: 2026-07-14 15:43:46

Reverse the Reverse

Time of First Successful Submission: 2026-07-14 15:45:40

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-07-14 15:49:21

Even or Odd

Time of First Successful Submission: 2026-07-14 15:58:42

Masking Bits

Time of First Successful Submission: 2026-07-14 16:23:22

Lowercase a String

Time of First Successful Submission: 2026-07-14 16:29:29

Uppercase a String

Time of First Successful Submission: 2026-07-14 16:51:12

Swap Case

Time of First Successful Submission: 2026-07-14 17:03:30

Shifting Left

Time of First Successful Submission: 2026-07-14 17:08:59

Shifting Right

Time of First Successful Submission: 2026-07-14 17:15:33

Loops on Data

Time of First Successful Submission: 2026-07-14 17:22:51

Reaching Into the Caller's Frame

Time of First Successful Submission: 2026-07-14 17:44:47

Loading Stale Stack Data

Time of First Successful Submission: 2026-07-14 17:54:24

Stealing Stale Stack Data

Time of First Successful Submission: 2026-07-14 18:03:41

Reserving Your Own Frame

Time of First Successful Submission: 2026-07-14 18:13:50

Using Your Own Frame

Time of First Successful Submission: 2026-07-14 18:51:48

Environment Variables on the Stack

Time of First Successful Submission: 2026-07-14 19:11:06

Aligning the Stack Through the Environment

Time of First Successful Submission: 2026-07-14 19:15:10

Aligning the Stack Through GDB

Time of First Successful Submission: 2026-07-14 19:17:30

Aligning the Stack Through GDB, Generalized

Time of First Successful Submission: 2026-07-14 19:19:51

A Single Digit

Time of First Successful Submission: 2026-07-14 19:27:26

Two Digits

Time of First Successful Submission: 2026-07-14 19:34:22

String to Integer

Time of First Successful Submission: 2026-07-14 19:49:06

Negative Numbers

Time of First Successful Submission: 2026-07-14 20:01:11

Where the Number Ends

Time of First Successful Submission: 2026-07-14 20:15:26

A Whole Program

Time of First Successful Submission: 2026-07-15 05:26:35

A Single Digit, Back to Text

Time of First Successful Submission: 2026-07-15 05:34:52

Divide and Remainder

Time of First Successful Submission: 2026-07-15 07:34:44

Drop the Leading Zero

Time of First Successful Submission: 2026-07-15 07:41:26

Integer to String

Time of First Successful Submission: 2026-07-15 09:38:00

Negative Numbers, Back to Text

Time of First Successful Submission: 2026-07-15 10:15:31

Sum Them All

Time of First Successful Submission: 2026-07-15 11:15:09

Addition

Time of First Successful Submission: 2026-07-15 18:23:54

Subtraction

Time of First Successful Submission: 2026-07-15 18:27:29

Multiplication

Time of First Successful Submission: 2026-07-15 18:31:06

Bitwise Operators

Time of First Successful Submission: 2026-07-15 18:36:11

Unary Operators

Time of First Successful Submission: 2026-07-15 18:45:24

Literal Output

Time of First Successful Submission: 2026-07-15 18:59:55

Newline Escapes

Time of First Successful Submission: 2026-07-15 19:39:00

Escaped Syntax

Time of First Successful Submission: 2026-07-15 20:21:17

Decimal Markers

Time of First Successful Submission: 2026-07-16 12:17:21

Multiple Decimal Markers

Time of First Successful Submission: 2026-07-16 15:46:32

String Markers

Time of First Successful Submission: 2026-07-16 16:23:56

Hex Byte Escapes

Time of First Successful Submission: 2026-07-16 17:13:48

Debugging Programs

Time of First Successful Submission: 2025-12-23 19:01:18

Inspecting Registers

Time of First Successful Submission: 2025-12-23 19:02:35

Examining Memory

Time of First Successful Submission: 2026-07-16 17:49:13

Setting Breakpoints

Time of First Successful Submission: 2026-07-16 18:12:19

GDB Scripting

Time of First Successful Submission: 2026-07-16 18:29:09

Modifying Data

Time of First Successful Submission: 2026-07-16 18:46:30

Modifying Execution

Time of First Successful Submission: 2026-07-16 18:47:43

Broken Functions

Time of First Successful Submission: 2026-07-16 19:47:41

Exit

Time of First Successful Submission: 2026-07-16 19:50:44

Socket

Time of First Successful Submission: 2026-07-16 20:02:43

Bind

Time of First Successful Submission: 2026-07-17 06:16:05

Listen

Time of First Successful Submission: 2026-07-17 06:23:18

Accept

Time of First Successful Submission: 2026-07-17 06:31:10

Static Response

Time of First Successful Submission: 2026-07-17 07:00:34

Dynamic Response

Time of First Successful Submission: 2026-07-17 07:54:02

Iterative GET Server

Time of First Successful Submission: 2026-07-17 08:13:33

Concurrent GET Server

Time of First Successful Submission: 2026-07-17 08:50:43

Concurrent POST Server

Time of First Successful Submission: 2026-07-17 10:23:08

Web Server

Time of First Successful Submission: 2026-07-17 10:29:00

Playing With Programs

21 / 116 15212 / 24475

What's the password?

Time of First Successful Submission: 2026-07-17 17:28:11

... and again!

Time of First Successful Submission: 2026-07-17 17:36:58

Newline Troubles

Time of First Successful Submission: 2026-07-17 17:39:07

Reasoning about files

Time of First Successful Submission: 2026-07-17 17:40:38

Specifying Filenames

Time of First Successful Submission: 2026-07-17 17:41:56

Binary and Hex Encoding

Time of First Successful Submission: 2026-07-17 18:01:31

More Hex

Time of First Successful Submission: 2026-07-17 18:04:19

Decoding Hex

Time of First Successful Submission: 2026-07-17 18:11:13

Decoding Practice

Time of First Successful Submission: 2026-07-17 18:17:17

Encoding Practice

Time of First Successful Submission: 2026-07-17 19:35:48

Hex-encoding ASCII

Time of First Successful Submission: 2026-07-17 19:42:06

Nested Encoding

Time of First Successful Submission: 2026-07-17 19:46:20

Hex-encoding UTF-8

Time of First Successful Submission: 2026-07-17 19:55:06

UTF Mixups

Time of First Successful Submission: 2026-07-17 20:17:29

Modifying Encoded Data

Time of First Successful Submission: 2026-07-17 20:23:40

Decoding Base64

Time of First Successful Submission: 2026-07-17 20:27:10

Encoding Base64

Time of First Successful Submission: 2026-07-17 20:28:25

Dealing with Obfuscation

Time of First Successful Submission: 2026-07-17 20:29:55

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-07-17 20:33:20

Your First HTTP Request

Time of First Successful Submission: 2026-07-17 21:47:38

Reading Flask

Time of First Successful Submission: 2026-07-17 21:53:41

DSU Cyber Camps

12 / 104 907 / 51581

Using the Terminal

Time of First Successful Submission: 2025-12-22 20:39:17

Using the VSCode Workspace

Time of First Successful Submission: 2025-07-01 09:13:29

Using the GUI Desktop

Time of First Successful Submission: 2025-07-01 09:14:55

Pasting into the Desktop

Time of First Successful Submission: 2025-07-01 09:19:10

Connecting over SSH

Time of First Successful Submission: 2025-12-22 21:00:59

Restarting Challenges

Time of First Successful Submission: 2025-07-01 09:22:00

Getting Help

Time of First Successful Submission: 2025-07-01 09:28:25

Challenge Programs

Time of First Successful Submission: 2025-07-01 09:29:44

The Flag File

Time of First Successful Submission: 2025-07-01 09:30:53

Using Privileged Mode

Time of First Successful Submission: 2025-07-01 09:38:11

Persistent Home Directories - One

Time of First Successful Submission: 2025-07-01 09:39:46

Persistent Home Directories - Two

Time of First Successful Submission: 2025-07-01 09:41:03

GCA CTF

12 / 104 907 / 51581

Using the Terminal

Time of First Successful Submission: 2025-12-22 20:39:17

Using the VSCode Workspace

Time of First Successful Submission: 2025-07-01 09:13:29

Using the GUI Desktop

Time of First Successful Submission: 2025-07-01 09:14:55

Pasting into the Desktop

Time of First Successful Submission: 2025-07-01 09:19:10

Connecting over SSH

Time of First Successful Submission: 2025-12-22 21:00:59

Restarting Challenges

Time of First Successful Submission: 2025-07-01 09:22:00

Getting Help

Time of First Successful Submission: 2025-07-01 09:28:25

Challenge Programs

Time of First Successful Submission: 2025-07-01 09:29:44

The Flag File

Time of First Successful Submission: 2025-07-01 09:30:53

Using Privileged Mode

Time of First Successful Submission: 2025-07-01 09:38:11

Persistent Home Directories - One

Time of First Successful Submission: 2025-07-01 09:39:46

Persistent Home Directories - Two

Time of First Successful Submission: 2025-07-01 09:41:03