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Intro to Programming Languages

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Commands

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Command Arguments

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The Root Path

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Absolute Paths

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Changing position

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Changing to an Absolute Path

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Relative Paths

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Cat

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Ls

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Ls All

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Find

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Intro to Cybersecurity

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Path Traversal 1

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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

Time of First Successful Submission: 2026-04-01 12:10:38

CMDi 5

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CMDi 6

Time of First Successful Submission: 2026-04-01 12:44:05

Authentication Bypass 1

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Authentication Bypass 2

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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

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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

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CSRF 1

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CSRF 2

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CSRF 3

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CSRF 4

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CSRF 5

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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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Sniffing Cookies

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Network Configuration

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Firewall 1

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Firewall 2

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Firewall 3

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Denial of Service 1

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Denial of Service 2

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Denial of Service 3

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Ethernet

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IP

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TCP

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TCP Handshake

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UDP

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UDP 2

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UDP Spoofing 1

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UDP Spoofing 2

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UDP Spoofing 3

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UDP Spoofing 4

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ARP

Time of First Successful Submission: 2026-04-20 19:10:30

Basic Shellcode

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NOP Sleds

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NULL-Free Shellcode

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Program Security

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ello ackers!

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Syscall Smuggler

Time of First Successful Submission: 2024-10-03 08:54:25

Syscall Shenanigans

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Start Here

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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: 2024-08-05 17:49:30

The Flag File

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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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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

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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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listing files

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touching files

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removing files

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hidden files

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An Epic Filesystem Quest

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making directories

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finding files

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linking files

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Learning From Documentation

Time of First Successful Submission: 2024-08-08 12:12:31

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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Mixing globs

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Exclusionary globbing

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GCA CTF

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Using the VSCode Workspace

Time of First Successful Submission: 2024-08-05 17:44:10

Using the GUI Desktop

Time of First Successful Submission: 2024-08-05 17:45:38

Pasting into the Desktop

Time of First Successful Submission: 2024-08-05 17:46:36

Restarting Challenges

Time of First Successful Submission: 2024-08-05 17:49:30

The Flag File

Time of First Successful Submission: 2024-08-05 17:51:08