abhi0710

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-08-26 20:19:17

Command Arguments

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Command History

Time of First Successful Submission: 2026-08-26 20:21:56

The Root Path

Time of First Successful Submission: 2026-08-26 20:32:49

Absolute Paths

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Changing position

Time of First Successful Submission: 2026-08-26 20:36:50

Changing to an Absolute Path

Time of First Successful Submission: 2026-08-26 20:38:49

Relative Paths

Time of First Successful Submission: 2026-08-26 20:40:19

Cat

Time of First Successful Submission: 2026-08-26 20:47:04

Ls

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Ls All

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Find

Time of First Successful Submission: 2026-08-26 21:13:35

Piping Echo

Time of First Successful Submission: 2026-08-26 23:22:06

Piping Stdout

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Piping Stdin

Time of First Successful Submission: 2026-08-27 03:43:45

Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-09-21 05:20:00

Path Traversal 2

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CMDi 1

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CMDi 2

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CMDi 3

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CMDi 4

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CMDi 5

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CMDi 6

Time of First Successful Submission: 2026-09-21 05:41:28

Authentication Bypass 1

Time of First Successful Submission: 2026-09-21 05:39:09

Authentication Bypass 2

Time of First Successful Submission: 2026-09-21 05:42:32

SQLi 1

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SQLi 2

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SQLi 3

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SQLi 4

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SQLi 5

Time of First Successful Submission: 2026-09-21 05:52:11

XSS 1

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XSS 2

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XSS 3

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XSS 4

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XSS 5

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XSS 6

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XSS 7

Time of First Successful Submission: 2026-09-21 06:06:42

CSRF 1

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CSRF 2

Time of First Successful Submission: 2026-09-21 06:11:41

CSRF 3

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CSRF 4

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CSRF 5

Time of First Successful Submission: 2026-09-21 06:19:03

Start Here

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Using the Terminal

Time of First Successful Submission: 2026-08-26 20:04:22

Using the VSCode Workspace

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Using the GUI Desktop

Time of First Successful Submission: 2026-08-26 20:06:55

Pasting into the Desktop

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Restarting Challenges

Time of First Successful Submission: 2026-08-26 20:10:35

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-08-26 20:19:17

Intro to Arguments

Time of First Successful Submission: 2026-08-26 20:20:51

Command History

Time of First Successful Submission: 2026-08-26 20:21:56

The Root

Time of First Successful Submission: 2026-08-26 20:32:49

Program and absolute paths

Time of First Successful Submission: 2026-08-26 20:34:00

Position thy self

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Position elsewhere

Time of First Successful Submission: 2026-08-26 20:38:49

implicit relative paths, from /

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explicit relative paths, from /

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implicit relative path

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home sweet home

Time of First Successful Submission: 2026-08-26 20:44:51

cat: not the pet, but the command!

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catting absolute paths

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more catting practice

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grepping for a needle in a haystack

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comparing files

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listing files

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touching files

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removing files

Time of First Successful Submission: 2026-08-26 20:55:45

moving files

Time of First Successful Submission: 2026-08-26 20:56:32

copying files

Time of First Successful Submission: 2026-08-26 20:58:22

hidden files

Time of First Successful Submission: 2026-08-26 20:59:59

An Epic Filesystem Quest

Time of First Successful Submission: 2026-08-26 21:09:15

making directories

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finding files

Time of First Successful Submission: 2026-08-26 21:13:35

linking files

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Learning From Documentation

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Learning Complex Usage

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Reading Manuals

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Searching Manuals

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Searching For Manuals

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Helpful Programs

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Help for Builtins

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Matching with *

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Matching with ?

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Matching with []

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Matching paths with []

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Multiple globs

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Mixing globs

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Exclusionary globbing

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Tab completion

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Multiple options for tab completion

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Tab completion on commands

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Redirecting output

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Redirecting more output

Time of First Successful Submission: 2026-08-26 23:23:41

Appending output

Time of First Successful Submission: 2026-08-27 03:34:41

Redirecting errors

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Redirecting input

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Grepping stored results

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Grepping live output

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Grepping errors

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Filtering with grep -v

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Filtering with sed

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Duplicating piped data with tee

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Process substitution for input

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Writing to multiple programs

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Split-piping stderr and stdout

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Named pipes

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Printing Variables

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Setting Variables

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Multi-word Variables

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Exporting Variables

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Printing Exported Variables

Time of First Successful Submission: 2026-08-27 04:01:56

Storing Command Output

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Reading Input

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Reading Files

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Translating characters

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Deleting characters

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Deleting newlines

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Extracting the first lines with head

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Extracting specific sections of text

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Sorting data

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Listing Processes

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Killing Processes

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Interrupting Processes

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Killing Misbehaving Processes

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Suspending Processes

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Resuming Processes

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Backgrounding Processes

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Foregrounding Processes

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Starting Backgrounded Processes

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Process Exit Codes

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Becoming root with su

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Other users with su

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Cracking passwords

Time of First Successful Submission: 2026-08-27 04:43:04

Using sudo

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Changing File Ownership

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Groups and Files

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Fun With Groups Names

Time of First Successful Submission: 2026-08-27 04:48:59

Changing Permissions

Time of First Successful Submission: 2026-08-27 04:49:55

Executable Files

Time of First Successful Submission: 2026-08-27 04:52:30

Permission Tweaking Practice

Time of First Successful Submission: 2026-08-27 04:58:58

Permissions Setting Practice

Time of First Successful Submission: 2026-08-27 05:03:23

The SUID Bit

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Chaining with Semicolons

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Building on Success

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Handling Failure

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Your First Shell Script

Time of First Successful Submission: 2026-08-27 05:15:22

Redirecting Script Output

Time of First Successful Submission: 2026-08-27 05:16:09

Executable Shell Scripts

Time of First Successful Submission: 2026-08-27 05:17:20

Understanding Shebangs

Time of First Successful Submission: 2026-08-27 05:18:29

Scripting with Arguments

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Scripting with Conditionals

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Scripting with Default Cases

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Scripting with Multiple Conditions

Time of First Successful Submission: 2026-08-27 05:24:52

Reading Shell Scripts

Time of First Successful Submission: 2026-08-27 05:26:23

Launching Screen

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Detaching and Attaching

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Finding Sessions

Time of First Successful Submission: 2026-08-27 05:32:00

Switching Windows

Time of First Successful Submission: 2026-08-27 05:32:55

Detaching and Attaching (tmux)

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Switching Windows (tmux)

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The PATH Variable

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Setting PATH

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Finding Commands

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Adding Commands

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Hijacking Commands

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Bashrc Backdoor

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Sniffing Input

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Overshared Directories

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Tricky Linking

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Sniffing Process Arguments

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Snooping on Configurations

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The Fork Bomb

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Disk-Space Doomsday

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rm -rf /

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Life after rm -rf /

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Finding meaning after rm -rf /

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Computing 101

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Your First Register

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Your First Syscall

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Exit Codes

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Building Executables

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Moving Between Registers

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Loading From Memory

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More Loading Practice

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Dereferencing Pointers

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Dereferencing Yourself

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Dereferencing with Offsets

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Stored Addresses

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Double Dereference

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The Stack

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Stack Offsets

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Program Arguments on the Stack

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Popping From the Stack

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Negative Numbers

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Negative Numbers (16-bit)

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Negative Numbers (32-bit)

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Encoding Negatives

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Binary and Hex Encoding

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More Hex

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Decoding Hex

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Mixed Conversions

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Disassembling Programs

Time of First Successful Submission: 2026-10-08 03:10:11

Tracing Syscalls

Time of First Successful Submission: 2026-10-08 03:12:17

Starting GDB

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Quitting GDB

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Starting Programs in GDB

Time of First Successful Submission: 2026-10-08 03:16:17

Disassembling in GDB

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Stepping Through Instructions

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Reading Register Values

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Setting Register Values

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Popping Stack Values

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Examining Memory

Time of First Successful Submission: 2026-10-08 03:24:19

Examining Stack Pointers

Time of First Successful Submission: 2026-10-08 03:26:24

Cooperative Debugging

Time of First Successful Submission: 2026-10-08 03:26:56

Running with Arguments

Time of First Successful Submission: 2026-10-08 03:27:35

Redirecting Input in GDB

Time of First Successful Submission: 2026-10-08 03:30:29

Writing Output

Time of First Successful Submission: 2026-10-08 03:31:43

Chaining Syscalls

Time of First Successful Submission: 2026-10-08 03:33:34

Writing Strings

Time of First Successful Submission: 2026-10-08 03:34:27

Reading Data

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Reading Exactly

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Opening Files

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Hardcoding the Filename

Time of First Successful Submission: 2026-10-08 03:37:06

RIP-Relative Strings

Time of First Successful Submission: 2026-10-08 03:37:47

Comparing Values

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Comparing Characters

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Conditional Control Flow

Time of First Successful Submission: 2026-10-08 03:40:13

Comparing Strings

Time of First Successful Submission: 2026-10-08 03:44:34

Reverse the Password

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Conditionals Without Conditionals

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Recognizing Loops

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Writing Loops

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Writing From a Shared Library

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Returning a Value

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Calling Through a Pointer

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Calling Through a Pointer with an Argument

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Saving Caller-Saved Registers

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Saving Callee-Saved Registers

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Sign Extension

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Little-Endian Bytes

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Qword by Qword

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Dword by Dword

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Word by Word

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Byte by Byte

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Cracking a Struct

Time of First Successful Submission: 2026-10-08 04:02:10

Scrambled Struct

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Reverse the Calculation

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Reverse the Reverse

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Dealing with Bitwise Operations

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Even or Odd

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Masking Bits

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Lowercase a String

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Uppercase a String

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Swap Case

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Shifting Left

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Shifting Right

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Loops on Data

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Reaching Into the Caller's Frame

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Loading Stale Stack Data

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Stealing Stale Stack Data

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Reserving Your Own Frame

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Using Your Own Frame

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Environment Variables on the Stack

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Aligning the Stack Through the Environment

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Aligning the Stack Through GDB

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Aligning the Stack Through GDB, Generalized

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A Single Digit

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Two Digits

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String to Integer

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Negative Numbers

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Where the Number Ends

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A Whole Program

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A Single Digit, Back to Text

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Divide and Remainder

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Drop the Leading Zero

Time of First Successful Submission: 2026-10-08 05:16:19

Integer to String

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Negative Numbers, Back to Text

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Sum Them All

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Addition

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Subtraction

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Multiplication

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Bitwise Operators

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Unary Operators

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Literal Output

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Newline Escapes

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Escaped Syntax

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Decimal Markers

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Multiple Decimal Markers

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String Markers

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Hex Byte Escapes

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Debugging Programs

Time of First Successful Submission: 2026-10-08 05:27:20

Inspecting Registers

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Examining Memory

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Setting Breakpoints

Time of First Successful Submission: 2026-10-08 05:36:12

GDB Scripting

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Modifying Data

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Modifying Execution

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Broken Functions

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Exit

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Socket

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Bind

Time of First Successful Submission: 2026-10-08 05:54:41

Listen

Time of First Successful Submission: 2026-10-08 05:55:15

Accept

Time of First Successful Submission: 2026-10-08 05:55:39

Static Response

Time of First Successful Submission: 2026-10-08 05:56:30

Dynamic Response

Time of First Successful Submission: 2026-10-08 05:57:02

Iterative GET Server

Time of First Successful Submission: 2026-10-08 05:57:31

Concurrent GET Server

Time of First Successful Submission: 2026-10-08 05:57:57

Concurrent POST Server

Time of First Successful Submission: 2026-10-08 05:58:31

Web Server

Time of First Successful Submission: 2026-10-08 05:59:56

Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-09-02 01:36:55

... and again!

Time of First Successful Submission: 2026-09-02 01:37:53

Newline Troubles

Time of First Successful Submission: 2026-09-02 01:39:25

Reasoning about files

Time of First Successful Submission: 2026-09-02 01:40:32

Specifying Filenames

Time of First Successful Submission: 2026-09-02 01:41:58

Binary and Hex Encoding

Time of First Successful Submission: 2026-09-02 01:42:56

More Hex

Time of First Successful Submission: 2026-09-02 01:43:54

Decoding Hex

Time of First Successful Submission: 2026-09-02 01:44:43

Decoding Practice

Time of First Successful Submission: 2026-09-02 01:46:12

Encoding Practice

Time of First Successful Submission: 2026-09-02 01:47:21

Hex-encoding ASCII

Time of First Successful Submission: 2026-09-02 01:48:19

Nested Encoding

Time of First Successful Submission: 2026-09-02 01:49:26

Hex-encoding UTF-8

Time of First Successful Submission: 2026-09-02 01:50:31

UTF Mixups

Time of First Successful Submission: 2026-09-02 01:51:45

Modifying Encoded Data

Time of First Successful Submission: 2026-09-02 01:53:21

Decoding Base64

Time of First Successful Submission: 2026-09-02 01:54:18

Encoding Base64

Time of First Successful Submission: 2026-09-02 01:55:12

Dealing with Obfuscation

Time of First Successful Submission: 2026-09-02 01:56:17

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-09-02 01:57:35

Your First HTTP Request

Time of First Successful Submission: 2026-09-02 02:00:24

Reading Flask

Time of First Successful Submission: 2026-09-02 02:03:06

Commented Data

Time of First Successful Submission: 2026-09-02 02:05:30

HTTP Metadata

Time of First Successful Submission: 2026-09-02 02:07:18

HTTP (netcat)

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

HTTP Paths (netcat)

Time of First Successful Submission: 2026-09-02 02:10:27

HTTP (curl)

Time of First Successful Submission: 2026-09-02 02:11:31

HTTP (python)

Time of First Successful Submission: 2026-09-02 02:12:30

HTTP Host Header (python)

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

HTTP Host Header (curl)

Time of First Successful Submission: 2026-09-02 02:14:46

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-09-02 02:16:05

URL Encoding (netcat)

Time of First Successful Submission: 2026-09-02 02:17:14

HTTP GET Parameters

Time of First Successful Submission: 2026-09-02 02:18:13

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-09-06 23:38:58

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-09-07 05:58:14

HTTP Forms

Time of First Successful Submission: 2026-09-07 05:59:28

HTTP Forms (curl)

Time of First Successful Submission: 2026-09-07 06:00:39

HTTP Forms (netcat)

Time of First Successful Submission: 2026-09-07 06:02:03

HTTP Forms (python)

Time of First Successful Submission: 2026-09-07 06:03:05

HTTP Forms Without Forms

Time of First Successful Submission: 2026-09-07 06:04:46

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-09-07 06:05:56

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-09-07 06:07:10

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-09-07 06:09:45

HTTP Redirects (curl)

Time of First Successful Submission: 2026-09-07 06:10:26

HTTP Redirects (python)

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

HTTP Cookies (curl)

Time of First Successful Submission: 2026-09-07 06:14:16

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-09-07 06:17:03

HTTP Cookies (python)

Time of First Successful Submission: 2026-09-07 06:17:55

Server State (python)

Time of First Successful Submission: 2026-09-07 06:18:37

Listening Web

Time of First Successful Submission: 2026-09-07 06:19:30

Speaking Redirects

Time of First Successful Submission: 2026-09-07 06:28:16

JavaScript Redirects

Time of First Successful Submission: 2026-09-07 06:29:55

Including JavaScript

Time of First Successful Submission: 2026-09-07 06:31:45

HTTP (javascript)

Time of First Successful Submission: 2026-09-07 06:33:16

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-09-07 06:36:47

HTTP Forms (javascript)

Time of First Successful Submission: 2026-09-07 06:38:22

SQL Queries

Time of First Successful Submission: 2026-09-07 06:39:27

Filtering SQL

Time of First Successful Submission: 2026-09-07 06:41:55

Choosing Columns

Time of First Successful Submission: 2026-09-07 06:43:06

Exclusionary Filtering

Time of First Successful Submission: 2026-09-07 06:45:03

Filtering Strings

Time of First Successful Submission: 2026-09-07 06:46:23

Filtering on Expressions

Time of First Successful Submission: 2026-09-07 06:47:59

SELECTing Expressions

Time of First Successful Submission: 2026-09-07 06:50:28

Composite Conditions

Time of First Successful Submission: 2026-09-07 06:51:47

Reaching Your LIMITs

Time of First Successful Submission: 2026-09-07 06:53:32

Querying Metadata

Time of First Successful Submission: 2026-09-07 06:57:12

DSU Cyber Camps

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Using the Terminal

Time of First Successful Submission: 2026-08-26 20:04:22

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-26 20:03:43

Using the GUI Desktop

Time of First Successful Submission: 2026-08-26 20:06:55

Pasting into the Desktop

Time of First Successful Submission: 2026-08-26 20:08:38

Restarting Challenges

Time of First Successful Submission: 2026-08-26 20:10:35

Getting Help

Time of First Successful Submission: 2026-08-26 20:13:49

GCA CTF

6 / 104 42629 / 69858

Using the Terminal

Time of First Successful Submission: 2026-08-26 20:04:22

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-26 20:03:43

Using the GUI Desktop

Time of First Successful Submission: 2026-08-26 20:06:55

Pasting into the Desktop

Time of First Successful Submission: 2026-08-26 20:08:38

Restarting Challenges

Time of First Successful Submission: 2026-08-26 20:10:35

Getting Help

Time of First Successful Submission: 2026-08-26 20:13:49