McS

🐧

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-05-07 05:49:43

Command Arguments

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Command History

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The Root Path

Time of First Successful Submission: 2026-05-07 06:01:16

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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Piping Echo

Time of First Successful Submission: 2026-05-13 14:32:19

Piping Stdout

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Piping Stdin

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Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-06-05 09:55:27

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

Time of First Successful Submission: 2026-06-05 10:38:35

Authentication Bypass 1

Time of First Successful Submission: 2026-06-05 10:42:19

Authentication Bypass 2

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SQLi 1

Time of First Successful Submission: 2026-06-05 11:54:46

Start Here

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Using the Terminal

Time of First Successful Submission: 2026-05-07 05:29:50

Using the VSCode Workspace

Time of First Successful Submission: 2025-04-01 14:52:22

Using the GUI Desktop

Time of First Successful Submission: 2025-04-01 14:53:50

Pasting into the Desktop

Time of First Successful Submission: 2025-04-01 14:55:16

Restarting Challenges

Time of First Successful Submission: 2025-04-01 14:57:06

Challenge Programs

Time of First Successful Submission: 2025-04-01 15:03:27

The Flag File

Time of First Successful Submission: 2026-05-07 05:32:59

Using Privileged Mode

Time of First Successful Submission: 2026-05-07 05:40:14

Persistent Home Directories - One

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Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-07 05:47:26

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-05-07 05:49:43

Intro to Arguments

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Command History

Time of First Successful Submission: 2026-05-07 05:50:40

The Root

Time of First Successful Submission: 2026-05-07 06:01:16

Program and absolute paths

Time of First Successful Submission: 2026-05-07 06:02:29

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

Time of First Successful Submission: 2026-05-07 06:14:32

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

Time of First Successful Submission: 2026-05-07 20:09:04

comparing files

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listing files

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touching files

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removing files

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moving files

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copying 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

Time of First Successful Submission: 2026-05-13 08:00:32

Learning From Documentation

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Learning Complex Usage

Time of First Successful Submission: 2026-05-13 08:11:45

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

Time of First Successful Submission: 2026-05-13 10:20:16

Exclusionary globbing

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Tab completion

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Multiple options for tab completion

Time of First Successful Submission: 2026-05-13 10:38:49

Tab completion on commands

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Redirecting output

Time of First Successful Submission: 2026-05-13 14:32:19

Redirecting more output

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Appending output

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Redirecting errors

Time of First Successful Submission: 2026-05-13 14:38:52

Redirecting input

Time of First Successful Submission: 2026-05-13 14:40:33

Grepping stored results

Time of First Successful Submission: 2026-05-13 14:42:40

Grepping live output

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Grepping errors

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Filtering with grep -v

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Filtering with sed

Time of First Successful Submission: 2026-05-13 15:02:24

Duplicating piped data with tee

Time of First Successful Submission: 2026-05-13 21:14:52

Process substitution for input

Time of First Successful Submission: 2026-05-14 09:46:00

Writing to multiple programs

Time of First Successful Submission: 2026-05-16 09:06:06

Split-piping stderr and stdout

Time of First Successful Submission: 2026-05-17 06:43:23

Named pipes

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Printing Variables

Time of First Successful Submission: 2026-05-17 09:59:08

Setting Variables

Time of First Successful Submission: 2026-05-17 10:00:13

Multi-word Variables

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Exporting Variables

Time of First Successful Submission: 2026-05-17 10:02:52

Printing Exported Variables

Time of First Successful Submission: 2026-05-17 10:03:32

Storing Command Output

Time of First Successful Submission: 2026-05-17 10:04:47

Reading Input

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

Reading Files

Time of First Successful Submission: 2026-05-17 10:12:45

Translating characters

Time of First Successful Submission: 2026-05-17 10:39:02

Deleting characters

Time of First Successful Submission: 2026-05-17 11:10:10

Deleting newlines

Time of First Successful Submission: 2026-05-17 11:11:35

Extracting the first lines with head

Time of First Successful Submission: 2026-05-17 11:13:12

Extracting specific sections of text

Time of First Successful Submission: 2026-05-17 13:16:21

Sorting data

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Listing Processes

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Killing Processes

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Interrupting Processes

Time of First Successful Submission: 2026-05-17 13:32:45

Killing Misbehaving Processes

Time of First Successful Submission: 2026-05-17 13:41:51

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: 2026-05-17 18:17:13

Using sudo

Time of First Successful Submission: 2026-05-17 18:19:51

Changing File Ownership

Time of First Successful Submission: 2026-05-18 08:23:51

Groups and Files

Time of First Successful Submission: 2026-05-18 08:26:48

Fun With Groups Names

Time of First Successful Submission: 2026-05-18 08:27:52

Changing Permissions

Time of First Successful Submission: 2026-05-18 08:40:11

Executable Files

Time of First Successful Submission: 2026-05-18 08:49:12

Permission Tweaking Practice

Time of First Successful Submission: 2026-05-18 16:30:23

Permissions Setting Practice

Time of First Successful Submission: 2026-05-20 14:58:10

The SUID Bit

Time of First Successful Submission: 2026-05-20 14:59:55

Chaining with Semicolons

Time of First Successful Submission: 2026-05-20 15:01:46

Building on Success

Time of First Successful Submission: 2026-05-20 15:02:37

Handling Failure

Time of First Successful Submission: 2026-05-20 15:05:02

Your First Shell Script

Time of First Successful Submission: 2026-05-20 15:07:00

Redirecting Script Output

Time of First Successful Submission: 2026-05-20 16:09:22

Executable Shell Scripts

Time of First Successful Submission: 2026-05-20 16:10:54

Understanding Shebangs

Time of First Successful Submission: 2026-05-20 16:18:04

Scripting with Arguments

Time of First Successful Submission: 2026-05-20 16:20:15

Scripting with Conditionals

Time of First Successful Submission: 2026-05-20 17:10:42

Scripting with Default Cases

Time of First Successful Submission: 2026-05-20 17:12:11

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-05-20 17:16:26

Reading Shell Scripts

Time of First Successful Submission: 2026-05-20 17:18:12

Launching Screen

Time of First Successful Submission: 2026-05-20 17:19:25

Detaching and Attaching

Time of First Successful Submission: 2026-05-20 17:21:10

Finding Sessions

Time of First Successful Submission: 2026-05-20 17:22:17

Switching Windows

Time of First Successful Submission: 2026-05-20 17:23:17

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-05-20 18:15:33

Switching Windows (tmux)

Time of First Successful Submission: 2026-05-20 18:19:59

The PATH Variable

Time of First Successful Submission: 2026-05-20 18:22:00

Setting PATH

Time of First Successful Submission: 2026-05-20 19:17:42

Finding Commands

Time of First Successful Submission: 2026-05-20 20:06:52

Adding Commands

Time of First Successful Submission: 2026-05-21 09:10:32

Hijacking Commands

Time of First Successful Submission: 2026-05-21 09:17:20

Bashrc Backdoor

Time of First Successful Submission: 2026-05-21 09:23:19

Sniffing Input

Time of First Successful Submission: 2026-05-21 11:03:43

Overshared Directories

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Tricky Linking

Time of First Successful Submission: 2026-05-21 17:23:27

Sniffing Process Arguments

Time of First Successful Submission: 2026-05-21 17:25:20

Snooping on Configurations

Time of First Successful Submission: 2026-05-21 17:27:07

The Fork Bomb

Time of First Successful Submission: 2026-05-21 18:03:44

Disk-Space Doomsday

Time of First Successful Submission: 2026-05-21 18:06:21

rm -rf /

Time of First Successful Submission: 2026-05-21 18:10:02

Life after rm -rf /

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Finding meaning after rm -rf /

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Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-05-21 19:14:24

... and again!

Time of First Successful Submission: 2026-05-21 19:15:09

Newline Troubles

Time of First Successful Submission: 2026-05-23 14:54:39

Reasoning about files

Time of First Successful Submission: 2026-05-23 15:08:04

Specifying Filenames

Time of First Successful Submission: 2026-05-23 15:09:25

Binary and Hex Encoding

Time of First Successful Submission: 2026-05-23 16:50:10

More Hex

Time of First Successful Submission: 2026-05-23 17:44:03

Decoding Hex

Time of First Successful Submission: 2026-05-24 11:56:45

Decoding Practice

Time of First Successful Submission: 2026-05-24 12:01:36

Encoding Practice

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Hex-encoding ASCII

Time of First Successful Submission: 2026-05-25 14:31:56

Nested Encoding

Time of First Successful Submission: 2026-05-25 14:44:15

Hex-encoding UTF-8

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UTF Mixups

Time of First Successful Submission: 2026-05-25 17:10:34

Modifying Encoded Data

Time of First Successful Submission: 2026-05-25 17:21:56

Decoding Base64

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Encoding Base64

Time of First Successful Submission: 2026-05-25 18:39:36

Dealing with Obfuscation

Time of First Successful Submission: 2026-05-31 14:54:47

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-05-31 15:09:10

Your First HTTP Request

Time of First Successful Submission: 2026-05-31 15:13:10

Reading Flask

Time of First Successful Submission: 2026-06-02 07:34:58

Commented Data

Time of First Successful Submission: 2026-06-02 07:39:15

HTTP Metadata

Time of First Successful Submission: 2026-06-02 07:42:43

HTTP (netcat)

Time of First Successful Submission: 2026-06-02 09:38:15

HTTP Paths (netcat)

Time of First Successful Submission: 2026-06-02 09:45:08

HTTP (curl)

Time of First Successful Submission: 2026-06-02 10:56:24

HTTP (python)

Time of First Successful Submission: 2026-06-02 11:01:36

HTTP Host Header (python)

Time of First Successful Submission: 2026-06-02 11:11:35

HTTP Host Header (curl)

Time of First Successful Submission: 2026-06-02 11:15:47

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-06-02 11:20:36

URL Encoding (netcat)

Time of First Successful Submission: 2026-06-02 11:24:43

HTTP GET Parameters

Time of First Successful Submission: 2026-06-03 07:13:30

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-06-03 08:00:36

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-06-03 08:05:36

HTTP Forms

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

HTTP Forms (curl)

Time of First Successful Submission: 2026-06-03 08:23:10

HTTP Forms (netcat)

Time of First Successful Submission: 2026-06-03 08:43:45

HTTP Forms (python)

Time of First Successful Submission: 2026-06-03 09:33:19

HTTP Forms Without Forms

Time of First Successful Submission: 2026-06-03 09:44:50

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-06-03 09:49:47

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-06-03 10:12:23

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-06-03 10:18:49

HTTP Redirects (curl)

Time of First Successful Submission: 2026-06-03 10:44:37

HTTP Redirects (python)

Time of First Successful Submission: 2026-06-03 10:47:43

HTTP Cookies (curl)

Time of First Successful Submission: 2026-06-03 10:55:46

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-06-03 11:06:42

HTTP Cookies (python)

Time of First Successful Submission: 2026-06-03 11:12:49

Server State (python)

Time of First Successful Submission: 2026-06-03 11:17:58

Listening Web

Time of First Successful Submission: 2026-06-03 11:22:43

Speaking Redirects

Time of First Successful Submission: 2026-06-03 12:05:44

JavaScript Redirects

Time of First Successful Submission: 2026-06-03 12:46:36

Including JavaScript

Time of First Successful Submission: 2026-06-05 07:25:25

HTTP (javascript)

Time of First Successful Submission: 2026-06-05 07:34:09

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-06-05 07:40:29

HTTP Forms (javascript)

Time of First Successful Submission: 2026-06-05 07:49:23

SQL Queries

Time of First Successful Submission: 2026-06-05 07:53:22

Filtering SQL

Time of First Successful Submission: 2026-06-05 07:59:44

Choosing Columns

Time of First Successful Submission: 2026-06-05 08:01:06

Exclusionary Filtering

Time of First Successful Submission: 2026-06-05 08:04:22

Filtering Strings

Time of First Successful Submission: 2026-06-05 08:06:33

Filtering on Expressions

Time of First Successful Submission: 2026-06-05 08:11:20

SELECTing Expressions

Time of First Successful Submission: 2026-06-05 08:54:48

Composite Conditions

Time of First Successful Submission: 2026-06-05 08:20:17

Reaching Your LIMITs

Time of First Successful Submission: 2026-06-05 08:23:21

Querying Metadata

Time of First Successful Submission: 2026-06-05 08:51:21

DSU Cyber Camps

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Using the Terminal

Time of First Successful Submission: 2026-05-07 05:29:50

Using the VSCode Workspace

Time of First Successful Submission: 2025-04-01 14:52:22

Using the GUI Desktop

Time of First Successful Submission: 2025-04-01 14:53:50

Pasting into the Desktop

Time of First Successful Submission: 2025-04-01 14:55:16

Restarting Challenges

Time of First Successful Submission: 2025-04-01 14:57:06

Getting Help

Time of First Successful Submission: 2026-05-12 21:43:00

Challenge Programs

Time of First Successful Submission: 2025-04-01 15:03:27

The Flag File

Time of First Successful Submission: 2026-05-07 05:32:59

Using Privileged Mode

Time of First Successful Submission: 2026-05-07 05:40:14

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-07 05:46:46

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-07 05:47:26

GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-05-07 05:29:50

Using the VSCode Workspace

Time of First Successful Submission: 2025-04-01 14:52:22

Using the GUI Desktop

Time of First Successful Submission: 2025-04-01 14:53:50

Pasting into the Desktop

Time of First Successful Submission: 2025-04-01 14:55:16

Restarting Challenges

Time of First Successful Submission: 2025-04-01 14:57:06

Getting Help

Time of First Successful Submission: 2026-05-12 21:43:00

Challenge Programs

Time of First Successful Submission: 2025-04-01 15:03:27

The Flag File

Time of First Successful Submission: 2026-05-07 05:32:59

Using Privileged Mode

Time of First Successful Submission: 2026-05-07 05:40:14

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-07 05:46:46

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-07 05:47:26