Walgeof

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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-09-16 10:00:56

Command Arguments

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Command History

Time of First Successful Submission: 2026-09-16 10:01:48

The Root Path

Time of First Successful Submission: 2026-09-16 10:02:28

Absolute Paths

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Changing position

Time of First Successful Submission: 2026-09-16 10:04:03

Changing to an Absolute Path

Time of First Successful Submission: 2026-09-16 10:05:58

Relative Paths

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Cat

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Ls

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Ls All

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Find

Time of First Successful Submission: 2026-09-16 10:19:56

Piping Echo

Time of First Successful Submission: 2026-09-16 11:49:05

Piping Stdout

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Piping Stdin

Time of First Successful Submission: 2026-09-16 11:53:27

Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-09-11 18:00:48

Path Traversal 2

Time of First Successful Submission: 2026-09-11 18:08:07

CMDi 1

Time of First Successful Submission: 2026-09-11 18:12:54

CMDi 2

Time of First Successful Submission: 2026-09-11 18:23:11

CMDi 3

Time of First Successful Submission: 2026-09-11 18:26:26

CMDi 4

Time of First Successful Submission: 2026-09-11 18:30:23

CMDi 5

Time of First Successful Submission: 2026-09-11 18:40:30

CMDi 6

Time of First Successful Submission: 2026-09-13 13:17:51

Authentication Bypass 1

Time of First Successful Submission: 2026-09-13 13:25:15

Authentication Bypass 2

Time of First Successful Submission: 2026-09-13 13:26:39

SQLi 1

Time of First Successful Submission: 2026-09-13 13:32:41

SQLi 2

Time of First Successful Submission: 2026-09-13 13:35:26

SQLi 3

Time of First Successful Submission: 2026-09-13 13:38:36

SQLi 4

Time of First Successful Submission: 2026-09-13 13:45:06

SQLi 5

Time of First Successful Submission: 2026-09-14 17:42:00

XSS 1

Time of First Successful Submission: 2026-09-14 17:55:55

XSS 2

Time of First Successful Submission: 2026-09-14 17:58:58

XSS 3

Time of First Successful Submission: 2026-09-15 07:38:35

XSS 4

Time of First Successful Submission: 2026-09-15 07:43:19

XSS 5

Time of First Successful Submission: 2026-09-15 08:03:47

XSS 6

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XSS 7

Time of First Successful Submission: 2026-09-15 09:58:54

CSRF 1

Time of First Successful Submission: 2026-09-15 18:30:35

CSRF 2

Time of First Successful Submission: 2026-09-15 18:36:31

CSRF 3

Time of First Successful Submission: 2026-09-16 09:31:36

CSRF 4

Time of First Successful Submission: 2026-09-16 09:37:24

CSRF 5

Time of First Successful Submission: 2026-09-16 09:54:01

Connect

Time of First Successful Submission: 2026-09-29 05:48:43

Send

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Shutdown

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Listen

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Scan 1

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Scan 2

Time of First Successful Submission: 2026-09-29 09:19:30

Monitor 1

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Monitor 2

Time of First Successful Submission: 2026-09-29 10:08:29

Sniffing Cookies

Time of First Successful Submission: 2026-09-29 18:25:25

Network Configuration

Time of First Successful Submission: 2026-09-30 19:10:14

Firewall 1

Time of First Successful Submission: 2026-10-01 10:37:44

Firewall 2

Time of First Successful Submission: 2026-10-01 10:38:54

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

Time of First Successful Submission: 2026-10-05 17:23:50

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

Time of First Successful Submission: 2026-10-06 08:29:38

UDP Spoofing 4

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ARP

Time of First Successful Submission: 2026-10-06 09:45:15

Intercept

Time of First Successful Submission: 2026-10-07 18:23:54

Man-in-the-Middle

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XOR

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XORing Hex

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XORing ASCII

Time of First Successful Submission: 2026-10-08 10:59:03

XORing ASCII Strings

Time of First Successful Submission: 2026-10-08 11:09:45

One-time Pad

Time of First Successful Submission: 2026-10-08 13:38:48

One-time Pad Tampering

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Many-time Pad

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AES

Time of First Successful Submission: 2026-10-08 18:51:19

AES-ECB-CPA

Time of First Successful Submission: 2026-10-13 09:21:49

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-10-14 17:03:03

AES-ECB-CPA-HTTP (base64)

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AES-ECB-CPA-Suffix

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AES-ECB-CPA-Prefix

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AES-ECB-CPA-Prefix-2

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AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-10-16 12:04:46

AES-ECB-CPA-Prefix-Boss

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AES-CBC

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AES-CBC Tampering

Time of First Successful Submission: 2026-10-18 13:13:37

AES-CBC Resizing

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AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-10-19 18:47:43

AES-CBC-POA-Full-Block

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AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-10-20 08:50:16

AES-CBC-POA-Encrypt

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AES-CBC-POA-Encrypt-2

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DHKE

Time of First Successful Submission: 2026-10-21 12:46:43

DHKE-to-AES

Time of First Successful Submission: 2026-10-21 12:52:06

RSA 1

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RSA 2

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RSA 3

Time of First Successful Submission: 2026-10-21 14:01:08

RSA 4

Time of First Successful Submission: 2026-10-21 15:27:17

RSA Signatures

Time of First Successful Submission: 2026-10-21 16:12:36

SHA 1

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SHA 2

Time of First Successful Submission: 2026-10-21 16:44:23

TLS 1

Time of First Successful Submission: 2026-10-21 18:47:25

TLS 2

Time of First Successful Submission: 2026-10-23 06:06:05

level1

Time of First Successful Submission: 2026-10-16 13:33:48

level2

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level3

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level4

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level5

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level6

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level7

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level8

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level9

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level10

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level11

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level12

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level13

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level14

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level15

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level16

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level17

Time of First Successful Submission: 2026-10-18 11:56:34

level18

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level19

Time of First Successful Submission: 2026-10-18 12:49:26

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2026-10-23 06:07:48

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2026-10-23 06:14:27

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2026-10-23 06:15:01

Reading Endianness (Python)

Time of First Successful Submission: 2026-10-23 06:15:58

Reading Endianness (C)

Time of First Successful Submission: 2026-10-23 06:16:49

Reading Endianness (x86)

Time of First Successful Submission: 2026-10-23 06:17:45

Version Information (Python)

Time of First Successful Submission: 2026-10-23 06:21:03

Version Information (C)

Time of First Successful Submission: 2026-10-23 12:35:10

Version Information (x86)

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Metadata and Data (Python)

Time of First Successful Submission: 2026-10-23 12:41:41

Metadata and Data (C)

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Metadata and Data (x86)

Time of First Successful Submission: 2026-10-23 12:58:15

Input Restrictions (Python)

Time of First Successful Submission: 2026-10-23 13:05:29

Input Restrictions (C)

Time of First Successful Submission: 2026-10-23 13:08:52

Input Restrictions (x86)

Time of First Successful Submission: 2026-10-23 13:10:52

Behold the cIMG! (Python)

Time of First Successful Submission: 2026-10-24 15:46:48

Behold the cIMG! (C)

Time of First Successful Submission: 2026-10-24 15:50:52

Behold the cIMG! (x86)

Time of First Successful Submission: 2026-10-24 15:53:19

A Basic cIMG (Python)

Time of First Successful Submission: 2026-10-24 15:59:20

A Basic cIMG (C)

Time of First Successful Submission: 2026-10-24 16:04:15

A Basic cIMG (x86)

Time of First Successful Submission: 2026-10-24 16:08:17

Internal State Mini (C)

Time of First Successful Submission: 2026-10-25 14:27:46

Internal State Mini (x86)

Time of First Successful Submission: 2026-10-25 14:34:40

Internal State (C)

Time of First Successful Submission: 2026-10-25 19:48:31

Internal State (x86)

Time of First Successful Submission: 2026-10-25 19:55:30

File Formats: Directives (C)

Time of First Successful Submission: 2026-10-27 10:09:15

File Formats: Directives (x86)

Time of First Successful Submission: 2026-10-27 10:13:35

The Patch Directive

Time of First Successful Submission: 2026-11-06 18:35:36

Optimizing for Space

Time of First Successful Submission: 2026-11-08 13:41:35

Tweaking Images

Time of First Successful Submission: 2026-11-08 15:53:42

Start Here

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Using the Terminal

Time of First Successful Submission: 2026-09-09 15:45:31

Using the VSCode Workspace

Time of First Successful Submission: 2026-09-09 15:47:21

Using the GUI Desktop

Time of First Successful Submission: 2026-09-09 15:50:21

Pasting into the Desktop

Time of First Successful Submission: 2026-09-09 15:51:58

Restarting Challenges

Time of First Successful Submission: 2026-09-16 09:58:12

Challenge Programs

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The Flag File

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Using Privileged Mode

Time of First Successful Submission: 2026-09-09 15:59:56

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

Time of First Successful Submission: 2026-09-16 10:00:56

Intro to Arguments

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Command History

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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

Time of First Successful Submission: 2026-09-16 10:11:00

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

Time of First Successful Submission: 2026-09-16 10:19:56

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

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Appending output

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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

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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

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Using sudo

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Changing File Ownership

Time of First Successful Submission: 2026-09-16 14:31:11

Groups and Files

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Fun With Groups Names

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Changing Permissions

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Executable Files

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Permission Tweaking Practice

Time of First Successful Submission: 2026-09-16 14:40:19

Permissions Setting Practice

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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

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Redirecting Script Output

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Executable Shell Scripts

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Understanding Shebangs

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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

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Reading Shell Scripts

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Launching Screen

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Detaching and Attaching

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Finding Sessions

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Switching Windows

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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

Time of First Successful Submission: 2026-09-16 17:44:09

Bashrc Backdoor

Time of First Successful Submission: 2026-09-16 17:45:55

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

Time of First Successful Submission: 2026-09-16 18:01:52

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

132 / 132 342 / 26241

Your First Register

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Your First Syscall

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Exit Codes

Time of First Successful Submission: 2026-09-17 13:22:59

Building Executables

Time of First Successful Submission: 2026-09-17 13:24:08

Moving Between Registers

Time of First Successful Submission: 2026-09-17 13:25:28

Loading From Memory

Time of First Successful Submission: 2026-09-17 13:28:57

More Loading Practice

Time of First Successful Submission: 2026-09-17 13:29:35

Dereferencing Pointers

Time of First Successful Submission: 2026-09-17 13:31:55

Dereferencing Yourself

Time of First Successful Submission: 2026-09-17 13:33:05

Dereferencing with Offsets

Time of First Successful Submission: 2026-09-17 13:34:14

Stored Addresses

Time of First Successful Submission: 2026-09-17 13:36:18

Double Dereference

Time of First Successful Submission: 2026-09-17 13:37:14

The Stack

Time of First Successful Submission: 2026-09-17 13:42:29

Stack Offsets

Time of First Successful Submission: 2026-09-17 13:43:10

Program Arguments on the Stack

Time of First Successful Submission: 2026-09-17 13:44:29

Popping From the Stack

Time of First Successful Submission: 2026-09-17 13:45:55

Negative Numbers

Time of First Successful Submission: 2026-09-17 13:51:53

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-09-17 13:54:31

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-09-17 13:55:43

Encoding Negatives

Time of First Successful Submission: 2026-09-17 13:58:13

Binary and Hex Encoding

Time of First Successful Submission: 2026-09-17 13:59:20

More Hex

Time of First Successful Submission: 2026-09-17 14:00:58

Decoding Hex

Time of First Successful Submission: 2026-09-17 14:01:58

Mixed Conversions

Time of First Successful Submission: 2026-09-17 14:07:31

Disassembling Programs

Time of First Successful Submission: 2026-09-17 14:09:58

Tracing Syscalls

Time of First Successful Submission: 2026-09-17 14:11:53

Starting GDB

Time of First Successful Submission: 2026-09-17 14:12:53

Quitting GDB

Time of First Successful Submission: 2026-09-17 14:13:23

Starting Programs in GDB

Time of First Successful Submission: 2026-09-17 14:14:10

Disassembling in GDB

Time of First Successful Submission: 2026-09-17 14:14:54

Stepping Through Instructions

Time of First Successful Submission: 2026-09-17 14:15:51

Reading Register Values

Time of First Successful Submission: 2026-09-17 14:16:32

Setting Register Values

Time of First Successful Submission: 2026-09-17 14:17:39

Popping Stack Values

Time of First Successful Submission: 2026-09-17 14:18:32

Examining Memory

Time of First Successful Submission: 2026-09-17 14:19:25

Examining Stack Pointers

Time of First Successful Submission: 2026-09-17 14:20:21

Cooperative Debugging

Time of First Successful Submission: 2026-09-17 14:21:52

Running with Arguments

Time of First Successful Submission: 2026-09-17 14:22:37

Redirecting Input in GDB

Time of First Successful Submission: 2026-09-17 14:23:27

Writing Output

Time of First Successful Submission: 2026-09-17 14:32:13

Chaining Syscalls

Time of First Successful Submission: 2026-09-17 14:33:45

Writing Strings

Time of First Successful Submission: 2026-09-17 14:34:28

Reading Data

Time of First Successful Submission: 2026-09-17 14:37:08

Reading Exactly

Time of First Successful Submission: 2026-09-17 14:38:31

Opening Files

Time of First Successful Submission: 2026-09-17 14:40:50

Hardcoding the Filename

Time of First Successful Submission: 2026-09-17 14:43:40

RIP-Relative Strings

Time of First Successful Submission: 2026-09-17 14:49:51

Comparing Values

Time of First Successful Submission: 2026-09-18 05:51:21

Comparing Characters

Time of First Successful Submission: 2026-09-18 05:52:29

Conditional Control Flow

Time of First Successful Submission: 2026-09-18 05:54:23

Comparing Strings

Time of First Successful Submission: 2026-09-18 05:55:18

Reverse the Password

Time of First Successful Submission: 2026-09-18 05:57:07

Conditionals Without Conditionals

Time of First Successful Submission: 2026-09-18 06:15:16

Recognizing Loops

Time of First Successful Submission: 2026-09-18 06:17:58

Writing Loops

Time of First Successful Submission: 2026-09-18 06:23:19

Writing From a Shared Library

Time of First Successful Submission: 2026-09-18 12:40:21

Returning a Value

Time of First Successful Submission: 2026-09-18 13:16:28

Calling Through a Pointer

Time of First Successful Submission: 2026-09-18 13:17:40

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-09-18 13:19:14

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-09-18 13:23:19

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-09-18 13:25:39

Sign Extension

Time of First Successful Submission: 2026-09-18 13:27:52

Little-Endian Bytes

Time of First Successful Submission: 2026-09-18 13:29:54

Qword by Qword

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Dword by Dword

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Word by Word

Time of First Successful Submission: 2026-09-18 14:21:18

Byte by Byte

Time of First Successful Submission: 2026-09-18 14:22:44

Cracking a Struct

Time of First Successful Submission: 2026-09-18 14:24:42

Scrambled Struct

Time of First Successful Submission: 2026-09-18 14:26:55

Reverse the Calculation

Time of First Successful Submission: 2026-09-18 14:28:09

Reverse the Reverse

Time of First Successful Submission: 2026-09-18 14:29:02

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-09-18 14:31:53

Even or Odd

Time of First Successful Submission: 2026-09-18 14:35:29

Masking Bits

Time of First Successful Submission: 2026-09-18 14:37:06

Lowercase a String

Time of First Successful Submission: 2026-09-18 14:38:33

Uppercase a String

Time of First Successful Submission: 2026-09-18 14:41:34

Swap Case

Time of First Successful Submission: 2026-09-18 14:43:47

Shifting Left

Time of First Successful Submission: 2026-09-18 14:45:21

Shifting Right

Time of First Successful Submission: 2026-09-18 14:46:32

Loops on Data

Time of First Successful Submission: 2026-09-18 14:47:45

Reaching Into the Caller's Frame

Time of First Successful Submission: 2026-09-18 14:55:37

Loading Stale Stack Data

Time of First Successful Submission: 2026-09-18 14:57:19

Stealing Stale Stack Data

Time of First Successful Submission: 2026-09-18 15:00:13

Reserving Your Own Frame

Time of First Successful Submission: 2026-09-18 15:12:22

Using Your Own Frame

Time of First Successful Submission: 2026-09-18 15:24:00

Environment Variables on the Stack

Time of First Successful Submission: 2026-09-18 15:27:56

Aligning the Stack Through the Environment

Time of First Successful Submission: 2026-09-18 15:29:54

Aligning the Stack Through GDB

Time of First Successful Submission: 2026-09-18 15:33:26

Aligning the Stack Through GDB, Generalized

Time of First Successful Submission: 2026-09-18 15:35:30

A Single Digit

Time of First Successful Submission: 2026-09-18 15:39:59

Two Digits

Time of First Successful Submission: 2026-09-18 15:43:50

String to Integer

Time of First Successful Submission: 2026-09-18 15:51:51

Negative Numbers

Time of First Successful Submission: 2026-09-18 16:08:56

Where the Number Ends

Time of First Successful Submission: 2026-09-18 16:11:09

A Whole Program

Time of First Successful Submission: 2026-09-18 16:13:08

A Single Digit, Back to Text

Time of First Successful Submission: 2026-09-18 16:14:38

Divide and Remainder

Time of First Successful Submission: 2026-09-18 16:18:58

Drop the Leading Zero

Time of First Successful Submission: 2026-09-18 16:23:24

Integer to String

Time of First Successful Submission: 2026-09-18 18:44:54

Negative Numbers, Back to Text

Time of First Successful Submission: 2026-09-18 18:59:42

Sum Them All

Time of First Successful Submission: 2026-09-19 08:45:44

Addition

Time of First Successful Submission: 2026-09-19 09:07:27

Subtraction

Time of First Successful Submission: 2026-09-19 17:41:34

Multiplication

Time of First Successful Submission: 2026-09-19 18:20:44

Bitwise Operators

Time of First Successful Submission: 2026-09-19 18:22:41

Unary Operators

Time of First Successful Submission: 2026-09-19 18:29:07

Literal Output

Time of First Successful Submission: 2026-09-19 18:45:29

Newline Escapes

Time of First Successful Submission: 2026-09-19 18:57:42

Escaped Syntax

Time of First Successful Submission: 2026-09-20 13:42:37

Decimal Markers

Time of First Successful Submission: 2026-09-20 14:00:54

Multiple Decimal Markers

Time of First Successful Submission: 2026-09-20 14:01:20

String Markers

Time of First Successful Submission: 2026-09-20 14:26:31

Hex Byte Escapes

Time of First Successful Submission: 2026-09-20 17:56:13

Debugging Programs

Time of First Successful Submission: 2026-09-20 17:58:21

Inspecting Registers

Time of First Successful Submission: 2026-09-20 18:00:14

Examining Memory

Time of First Successful Submission: 2026-09-20 18:02:26

Setting Breakpoints

Time of First Successful Submission: 2026-09-20 18:08:09

GDB Scripting

Time of First Successful Submission: 2026-09-20 18:20:33

Modifying Data

Time of First Successful Submission: 2026-09-21 05:41:49

Modifying Execution

Time of First Successful Submission: 2026-09-21 05:43:03

Broken Functions

Time of First Successful Submission: 2026-09-21 05:52:39

Exit

Time of First Successful Submission: 2026-09-21 05:54:18

Socket

Time of First Successful Submission: 2026-09-21 06:10:54

Bind

Time of First Successful Submission: 2026-09-21 06:16:45

Listen

Time of First Successful Submission: 2026-09-21 06:18:20

Accept

Time of First Successful Submission: 2026-09-21 06:22:10

Static Response

Time of First Successful Submission: 2026-09-21 18:16:56

Dynamic Response

Time of First Successful Submission: 2026-09-22 08:22:21

Iterative GET Server

Time of First Successful Submission: 2026-09-22 08:30:02

Concurrent GET Server

Time of First Successful Submission: 2026-09-22 08:50:19

Concurrent POST Server

Time of First Successful Submission: 2026-09-23 10:56:57

Web Server

Time of First Successful Submission: 2026-09-23 10:57:40

Playing With Programs

116 / 116 1295 / 27550

What's the password?

Time of First Successful Submission: 2026-09-09 16:04:01

... and again!

Time of First Successful Submission: 2026-09-23 18:35:00

Newline Troubles

Time of First Successful Submission: 2026-09-23 18:36:17

Reasoning about files

Time of First Successful Submission: 2026-09-23 18:37:41

Specifying Filenames

Time of First Successful Submission: 2026-09-23 18:39:08

Binary and Hex Encoding

Time of First Successful Submission: 2026-09-23 18:42:50

More Hex

Time of First Successful Submission: 2026-09-23 18:43:46

Decoding Hex

Time of First Successful Submission: 2026-09-23 18:46:23

Decoding Practice

Time of First Successful Submission: 2026-09-23 18:48:00

Encoding Practice

Time of First Successful Submission: 2026-09-23 18:52:41

Hex-encoding ASCII

Time of First Successful Submission: 2026-09-23 18:58:38

Nested Encoding

Time of First Successful Submission: 2026-09-23 19:01:27

Hex-encoding UTF-8

Time of First Successful Submission: 2026-09-23 19:03:27

UTF Mixups

Time of First Successful Submission: 2026-09-23 19:10:16

Modifying Encoded Data

Time of First Successful Submission: 2026-09-24 13:54:39

Decoding Base64

Time of First Successful Submission: 2026-09-24 13:57:54

Encoding Base64

Time of First Successful Submission: 2026-09-24 14:04:45

Dealing with Obfuscation

Time of First Successful Submission: 2026-09-24 14:12:47

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-09-24 14:27:14

Your First HTTP Request

Time of First Successful Submission: 2026-09-24 14:29:28

Reading Flask

Time of First Successful Submission: 2026-09-24 14:30:44

Commented Data

Time of First Successful Submission: 2026-09-24 14:32:36

HTTP Metadata

Time of First Successful Submission: 2026-09-24 14:34:11

HTTP (netcat)

Time of First Successful Submission: 2026-09-24 14:39:53

HTTP Paths (netcat)

Time of First Successful Submission: 2026-09-24 14:41:29

HTTP (curl)

Time of First Successful Submission: 2026-09-24 14:42:11

HTTP (python)

Time of First Successful Submission: 2026-09-24 14:45:45

HTTP Host Header (python)

Time of First Successful Submission: 2026-09-24 16:16:01

HTTP Host Header (curl)

Time of First Successful Submission: 2026-09-24 16:18:14

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-09-24 16:19:50

URL Encoding (netcat)

Time of First Successful Submission: 2026-09-24 16:24:53

HTTP GET Parameters

Time of First Successful Submission: 2026-09-24 16:26:54

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-09-24 16:28:22

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-09-24 16:29:57

HTTP Forms

Time of First Successful Submission: 2026-09-24 16:31:38

HTTP Forms (curl)

Time of First Successful Submission: 2026-09-24 16:32:51

HTTP Forms (netcat)

Time of First Successful Submission: 2026-09-24 17:32:20

HTTP Forms (python)

Time of First Successful Submission: 2026-09-24 17:35:05

HTTP Forms Without Forms

Time of First Successful Submission: 2026-09-24 17:45:50

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-09-24 18:03:52

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-09-24 18:10:31

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-09-24 18:12:26

HTTP Redirects (curl)

Time of First Successful Submission: 2026-09-24 18:13:56

HTTP Redirects (python)

Time of First Successful Submission: 2026-09-24 18:16:19

HTTP Cookies (curl)

Time of First Successful Submission: 2026-09-24 18:20:38

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-09-24 18:26:39

HTTP Cookies (python)

Time of First Successful Submission: 2026-09-24 18:28:32

Server State (python)

Time of First Successful Submission: 2026-09-24 18:29:31

Listening Web

Time of First Successful Submission: 2026-09-24 18:36:17

Speaking Redirects

Time of First Successful Submission: 2026-09-24 18:41:13

JavaScript Redirects

Time of First Successful Submission: 2026-09-24 18:45:49

Including JavaScript

Time of First Successful Submission: 2026-09-26 13:01:51

HTTP (javascript)

Time of First Successful Submission: 2026-09-26 13:13:27

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-09-26 13:16:25

HTTP Forms (javascript)

Time of First Successful Submission: 2026-09-26 13:26:59

cat

Time of First Successful Submission: 2026-09-26 13:27:40

more

Time of First Successful Submission: 2026-09-26 13:27:59

less

Time of First Successful Submission: 2026-09-26 13:28:19

tail

Time of First Successful Submission: 2026-09-26 13:28:46

head

Time of First Successful Submission: 2026-09-26 13:29:02

sort

Time of First Successful Submission: 2026-09-26 13:29:25

vim

Time of First Successful Submission: 2026-09-26 13:29:45

emacs

Time of First Successful Submission: 2026-09-26 13:30:04

nano

Time of First Successful Submission: 2026-09-26 13:30:30

rev

Time of First Successful Submission: 2026-09-26 13:33:23

od

Time of First Successful Submission: 2026-09-26 13:38:24

hd

Time of First Successful Submission: 2026-09-26 13:44:45

xxd

Time of First Successful Submission: 2026-09-26 13:45:16

base32

Time of First Successful Submission: 2026-09-26 13:45:50

base64

Time of First Successful Submission: 2026-09-26 13:46:13

split

Time of First Successful Submission: 2026-09-26 13:47:30

gzip

Time of First Successful Submission: 2026-09-26 13:49:48

bzip2

Time of First Successful Submission: 2026-09-26 13:50:28

zip

Time of First Successful Submission: 2026-09-26 13:52:14

tar

Time of First Successful Submission: 2026-09-26 13:56:45

ar

Time of First Successful Submission: 2026-09-26 13:59:27

cpio

Time of First Successful Submission: 2026-09-26 14:03:24

genisoimage

Time of First Successful Submission: 2026-09-26 14:13:33

env

Time of First Successful Submission: 2026-09-26 14:15:19

find

Time of First Successful Submission: 2026-09-26 15:02:12

make

Time of First Successful Submission: 2026-09-28 05:38:49

nice

Time of First Successful Submission: 2026-09-28 05:39:44

timeout

Time of First Successful Submission: 2026-09-28 05:42:34

stdbuf

Time of First Successful Submission: 2026-09-28 05:43:37

setarch

Time of First Successful Submission: 2026-09-28 05:44:23

watch

Time of First Successful Submission: 2026-09-28 05:49:48

socat

Time of First Successful Submission: 2026-09-28 05:55:24

whiptail

Time of First Successful Submission: 2026-09-28 06:03:48

awk

Time of First Successful Submission: 2026-09-28 06:05:02

sed

Time of First Successful Submission: 2026-09-28 06:05:23

ed

Time of First Successful Submission: 2026-09-28 06:08:44

chown

Time of First Successful Submission: 2026-09-28 06:09:03

chmod

Time of First Successful Submission: 2026-09-28 06:09:18

cp

Time of First Successful Submission: 2026-09-28 06:22:31

mv

Time of First Successful Submission: 2026-09-28 11:16:39

perl

Time of First Successful Submission: 2026-09-28 11:19:34

python

Time of First Successful Submission: 2026-09-28 11:20:16

ruby

Time of First Successful Submission: 2026-09-28 11:21:25

bash

Time of First Successful Submission: 2026-09-28 11:25:12

date

Time of First Successful Submission: 2026-09-28 11:25:45

dmesg

Time of First Successful Submission: 2026-09-28 11:26:49

wc

Time of First Successful Submission: 2026-09-28 11:27:48

gcc

Time of First Successful Submission: 2026-09-28 11:50:50

as

Time of First Successful Submission: 2026-09-28 11:51:16

wget

Time of First Successful Submission: 2026-09-28 16:23:18

ssh-keygen

Time of First Successful Submission: 2026-09-28 17:08:15

SQL Queries

Time of First Successful Submission: 2026-09-28 17:12:06

Filtering SQL

Time of First Successful Submission: 2026-09-28 17:14:28

Choosing Columns

Time of First Successful Submission: 2026-09-28 17:15:24

Exclusionary Filtering

Time of First Successful Submission: 2026-09-28 17:16:29

Filtering Strings

Time of First Successful Submission: 2026-09-28 17:17:20

Filtering on Expressions

Time of First Successful Submission: 2026-09-28 17:18:05

SELECTing Expressions

Time of First Successful Submission: 2026-09-29 05:41:24

Composite Conditions

Time of First Successful Submission: 2026-09-29 05:43:51

Reaching Your LIMITs

Time of First Successful Submission: 2026-09-29 05:45:46

Querying Metadata

Time of First Successful Submission: 2026-09-29 05:47:17

Content Injection

10 / 10 74 / 178

Teacher Login

Time of First Successful Submission: 2026-10-28 13:52:41

Teacher Login 2

Time of First Successful Submission: 2026-10-28 14:16:07

Teacher Login 3

Time of First Successful Submission: 2026-10-28 18:41:00

Teacher Login 4

Time of First Successful Submission: 2026-10-28 18:42:12

Teacher Login 5

Time of First Successful Submission: 2026-10-28 18:52:04

Teacher Login 6

Time of First Successful Submission: 2026-10-28 18:56:06

Teacher Login 7

Time of First Successful Submission: 2026-10-28 19:34:24

Class Cancellation

Time of First Successful Submission: 2026-10-28 19:47:26

Class Cancellation 2

Time of First Successful Submission: 2026-10-28 19:52:10

Class Cancellation 3

Time of First Successful Submission: 2026-10-28 19:54:26

DSU Cyber Camps

11 / 104 16128 / 77771

Using the Terminal

Time of First Successful Submission: 2026-09-09 15:45:31

Using the VSCode Workspace

Time of First Successful Submission: 2026-09-09 15:47:21

Using the GUI Desktop

Time of First Successful Submission: 2026-09-09 15:50:21

Pasting into the Desktop

Time of First Successful Submission: 2026-09-09 15:51:58

Connecting over SSH

Time of First Successful Submission: 2026-09-09 15:55:14

Restarting Challenges

Time of First Successful Submission: 2026-09-16 09:58:12

Challenge Programs

Time of First Successful Submission: 2026-09-09 15:56:54

The Flag File

Time of First Successful Submission: 2026-09-09 15:58:04

Using Privileged Mode

Time of First Successful Submission: 2026-09-09 15:59:56

Persistent Home Directories - One

Time of First Successful Submission: 2026-09-09 16:01:25

Persistent Home Directories - Two

Time of First Successful Submission: 2026-09-09 16:02:01

GCA CTF

11 / 104 16128 / 77771

Using the Terminal

Time of First Successful Submission: 2026-09-09 15:45:31

Using the VSCode Workspace

Time of First Successful Submission: 2026-09-09 15:47:21

Using the GUI Desktop

Time of First Successful Submission: 2026-09-09 15:50:21

Pasting into the Desktop

Time of First Successful Submission: 2026-09-09 15:51:58

Connecting over SSH

Time of First Successful Submission: 2026-09-09 15:55:14

Restarting Challenges

Time of First Successful Submission: 2026-09-16 09:58:12

Challenge Programs

Time of First Successful Submission: 2026-09-09 15:56:54

The Flag File

Time of First Successful Submission: 2026-09-09 15:58:04

Using Privileged Mode

Time of First Successful Submission: 2026-09-09 15:59:56

Persistent Home Directories - One

Time of First Successful Submission: 2026-09-09 16:01:25

Persistent Home Directories - Two

Time of First Successful Submission: 2026-09-09 16:02:01