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Intro to Cybersecurity

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Connect

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Send

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Shutdown

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Listen

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Scan 1

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Scan 2

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Monitor 1

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Monitor 2

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Getting Started

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Using the VSCode Workspace

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Using the GUI Desktop

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Pasting into the Desktop

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Restarting Challenges

Time of First Successful Submission: 2025-03-23 19:49:10

Getting Help

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Challenge Programs

Time of First Successful Submission: 2025-03-23 19:58:04

The Flag File

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Using Practice Mode

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Persistent Home Directories - One

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Persistent Home Directories - Two

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Linux Luminarium

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Intro to Commands

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Intro to Arguments

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The Root

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Program and absolute paths

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Position thy self

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Position elsewhere

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Position yet elsewhere

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implicit relative paths, from /

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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

Time of First Successful Submission: 2025-03-25 12:04:44

Moving Between Registers

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Tracing Syscalls

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Starting GDB

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Starting Programs in GDB

Time of First Successful Submission: 2025-03-25 12:36:52

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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Triple Dereference

Time of First Successful Submission: 2025-03-25 17:26:51

Writing Output

Time of First Successful Submission: 2025-03-26 08:09:02

Chaining Syscalls

Time of First Successful Submission: 2025-03-26 08:14:42

Writing Strings

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Reading Data

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set-register

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set-multiple-registers

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add-to-register

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linear-equation-registers

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integer-division

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modulo-operation

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set-upper-byte

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efficient-modulo

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byte-extraction

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bitwise-and

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check-even

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memory-read

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Playing With Programs

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What's the password?

Time of First Successful Submission: 2025-04-03 16:34:23

... and again!

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Newline Troubles

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Reasoning about files

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Specifying Filenames

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Binary and Hex Encoding

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More Hex

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Decoding Hex

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Decoding Practice

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Encoding Practice

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Your First HTTP Request

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Reading Flask

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Commented Data

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HTTP Metadata

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HTTP (netcat)

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HTTP Paths (netcat)

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HTTP (curl)

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HTTP (python)

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HTTP Host Header (python)

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HTTP Host Header (curl)

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HTTP Host Header (netcat)

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URL Encoding (netcat)

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HTTP GET Parameters

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Multiple HTTP Parameters (netcat)

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Multiple HTTP Parameters (curl)

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HTTP Forms

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HTTP Forms (curl)

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HTTP Forms (netcat)

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HTTP Forms (python)

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HTTP Forms Without Forms

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Multiple Form Fields (curl)

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HTTP Redirects (netcat)

Time of First Successful Submission: 2025-04-09 01:13:03

HTTP Redirects (curl)

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HTTP Redirects (python)

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HTTP Cookies (curl)

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HTTP Cookies (netcat)

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HTTP Cookies (python)

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Server State (python)

Time of First Successful Submission: 2025-04-09 02:02:57

Listening Web

Time of First Successful Submission: 2025-04-09 02:19:02