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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2025-12-06 16:08:02

Command Arguments

Time of First Successful Submission: 2025-12-06 16:09:06

Command History

Time of First Successful Submission: 2025-12-06 16:09:55

The Root Path

Time of First Successful Submission: 2025-12-06 16:12:01

Absolute Paths

Time of First Successful Submission: 2025-12-06 16:13:03

Changing position

Time of First Successful Submission: 2025-12-06 16:13:45

Changing to an Absolute Path

Time of First Successful Submission: 2025-12-06 16:15:03

Relative Paths

Time of First Successful Submission: 2025-12-06 16:16:26

Cat

Time of First Successful Submission: 2025-12-06 16:21:42

Ls

Time of First Successful Submission: 2025-12-06 16:26:42

Ls All

Time of First Successful Submission: 2025-12-06 16:30:21

Find

Time of First Successful Submission: 2025-12-06 16:39:14

Piping Echo

Time of First Successful Submission: 2025-12-31 14:30:25

Piping Stdout

Time of First Successful Submission: 2025-12-31 14:31:19

Piping Stdin

Time of First Successful Submission: 2025-12-31 14:35:01

Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2025-12-06 17:10:28

Path Traversal 2

Time of First Successful Submission: 2025-12-06 17:20:12

CMDi 1

Time of First Successful Submission: 2025-12-06 17:25:39

CMDi 2

Time of First Successful Submission: 2025-12-06 17:28:27

CMDi 3

Time of First Successful Submission: 2025-12-06 17:31:47

CMDi 4

Time of First Successful Submission: 2025-12-06 17:36:44

CMDi 5

Time of First Successful Submission: 2025-12-06 17:41:51

CMDi 6

Time of First Successful Submission: 2025-12-06 18:06:46

Authentication Bypass 1

Time of First Successful Submission: 2025-12-09 17:47:06

Authentication Bypass 2

Time of First Successful Submission: 2025-12-09 17:51:02

SQLi 1

Time of First Successful Submission: 2025-12-09 18:01:34

SQLi 2

Time of First Successful Submission: 2025-12-09 18:04:42

SQLi 3

Time of First Successful Submission: 2025-12-09 18:11:09

SQLi 4

Time of First Successful Submission: 2025-12-09 18:16:45

SQLi 5

Time of First Successful Submission: 2025-12-09 20:56:46

XSS 1

Time of First Successful Submission: 2025-12-09 21:06:52

XSS 2

Time of First Successful Submission: 2025-12-10 10:13:44

XSS 3

Time of First Successful Submission: 2025-12-10 10:18:53

XSS 4

Time of First Successful Submission: 2025-12-10 10:24:22

XSS 5

Time of First Successful Submission: 2026-01-02 17:38:46

XSS 6

Time of First Successful Submission: 2026-01-02 19:56:00

XSS 7

Time of First Successful Submission: 2026-01-02 20:26:36

CSRF 1

Time of First Successful Submission: 2026-01-03 11:40:49

CSRF 2

Time of First Successful Submission: 2026-01-03 12:06:50

CSRF 3

Time of First Successful Submission: 2026-01-03 13:11:29

CSRF 4

Time of First Successful Submission: 2026-01-03 13:20:52

CSRF 5

Time of First Successful Submission: 2026-01-03 13:37:37

Connect

Time of First Successful Submission: 2026-01-04 18:33:19

Send

Time of First Successful Submission: 2026-01-04 18:35:36

Shutdown

Time of First Successful Submission: 2026-01-04 18:37:36

Listen

Time of First Successful Submission: 2026-01-04 18:38:38

Scan 1

Time of First Successful Submission: 2026-01-04 18:44:34

Scan 2

Time of First Successful Submission: 2026-01-04 19:15:34

Monitor 1

Time of First Successful Submission: 2026-01-05 07:32:34

Monitor 2

Time of First Successful Submission: 2026-01-06 08:53:24

Sniffing Cookies

Time of First Successful Submission: 2026-01-06 09:18:08

Network Configuration

Time of First Successful Submission: 2026-01-06 09:22:19

Firewall 1

Time of First Successful Submission: 2026-01-06 09:29:21

Firewall 2

Time of First Successful Submission: 2026-01-06 09:32:18

Firewall 3

Time of First Successful Submission: 2026-01-06 09:39:59

Denial of Service 1

Time of First Successful Submission: 2026-01-06 09:45:28

Denial of Service 2

Time of First Successful Submission: 2026-01-06 10:00:40

Denial of Service 3

Time of First Successful Submission: 2026-01-06 10:51:40

Ethernet

Time of First Successful Submission: 2026-01-06 12:31:31

IP

Time of First Successful Submission: 2026-01-06 12:33:13

TCP

Time of First Successful Submission: 2026-01-06 12:35:27

TCP Handshake

Time of First Successful Submission: 2026-01-22 11:35:34

UDP

Time of First Successful Submission: 2026-01-22 11:43:08

UDP 2

Time of First Successful Submission: 2026-01-22 11:44:43

UDP Spoofing 1

Time of First Successful Submission: 2026-01-22 11:47:15

UDP Spoofing 2

Time of First Successful Submission: 2026-01-22 11:51:59

UDP Spoofing 3

Time of First Successful Submission: 2026-01-22 11:58:38

UDP Spoofing 4

Time of First Successful Submission: 2026-01-22 12:01:46

ARP

Time of First Successful Submission: 2026-01-22 12:03:14

Intercept

Time of First Successful Submission: 2026-03-01 11:05:37

Man-in-the-Middle

Time of First Successful Submission: 2026-03-01 12:38:48

XOR

Time of First Successful Submission: 2025-12-10 10:56:47

XORing Hex

Time of First Successful Submission: 2025-12-10 11:04:11

XORing ASCII

Time of First Successful Submission: 2025-12-10 13:17:30

XORing ASCII Strings

Time of First Successful Submission: 2025-12-10 13:34:18

One-time Pad

Time of First Successful Submission: 2025-12-10 13:37:59

One-time Pad Tampering

Time of First Successful Submission: 2025-12-10 13:41:55

Many-time Pad

Time of First Successful Submission: 2025-12-10 20:16:52

AES

Time of First Successful Submission: 2025-12-10 20:26:56

AES-ECB-CPA

Time of First Successful Submission: 2025-12-10 21:03:40

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2025-12-11 14:50:29

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2025-12-11 14:56:51

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2025-12-11 15:05:28

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2025-12-13 14:54:20

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2025-12-13 15:14:14

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2025-12-13 16:58:46

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2025-12-13 21:09:46

AES-CBC

Time of First Successful Submission: 2025-12-14 13:54:49

AES-CBC Tampering

Time of First Successful Submission: 2025-12-14 14:21:53

AES-CBC Resizing

Time of First Successful Submission: 2025-12-14 14:28:13

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2025-12-14 22:04:27

AES-CBC-POA-Full-Block

Time of First Successful Submission: 2025-12-15 16:19:13

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2025-12-15 16:36:02

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2025-12-16 16:26:00

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2025-12-16 16:26:56

DHKE

Time of First Successful Submission: 2025-12-16 19:39:15

DHKE-to-AES

Time of First Successful Submission: 2025-12-16 19:43:51

RSA 1

Time of First Successful Submission: 2025-12-16 19:53:27

RSA 2

Time of First Successful Submission: 2025-12-16 19:57:39

RSA 3

Time of First Successful Submission: 2025-12-16 20:07:05

RSA 4

Time of First Successful Submission: 2025-12-16 20:25:45

RSA Signatures

Time of First Successful Submission: 2025-12-16 21:33:12

SHA 1

Time of First Successful Submission: 2025-12-16 21:41:03

SHA 2

Time of First Successful Submission: 2025-12-16 21:44:50

TLS 1

Time of First Successful Submission: 2025-12-17 11:31:08

TLS 2

Time of First Successful Submission: 2025-12-17 12:50:23

level1

Time of First Successful Submission: 2026-01-20 19:59:13

level2

Time of First Successful Submission: 2026-01-20 19:59:50

level3

Time of First Successful Submission: 2026-01-20 20:00:33

level4

Time of First Successful Submission: 2026-01-20 20:01:34

level5

Time of First Successful Submission: 2026-01-20 20:03:38

level6

Time of First Successful Submission: 2026-01-21 19:51:51

level7

Time of First Successful Submission: 2026-01-21 19:54:29

level8

Time of First Successful Submission: 2026-01-21 19:55:18

level9

Time of First Successful Submission: 2026-01-21 19:56:10

level10

Time of First Successful Submission: 2026-01-21 19:57:44

level11

Time of First Successful Submission: 2026-01-21 20:00:17

level12

Time of First Successful Submission: 2026-01-21 20:02:17

level13

Time of First Successful Submission: 2026-01-21 20:03:25

level14

Time of First Successful Submission: 2026-01-21 20:04:17

level15

Time of First Successful Submission: 2026-01-21 20:04:58

level16

Time of First Successful Submission: 2026-01-21 20:06:38

level17

Time of First Successful Submission: 2026-01-21 20:12:16

level18

Time of First Successful Submission: 2026-01-21 20:13:10

level19

Time of First Successful Submission: 2026-01-21 20:13:35

File Formats: Magic Numbers (Python)

Time of First Successful Submission: 2025-12-17 18:00:27

File Formats: Magic Numbers (C)

Time of First Successful Submission: 2025-12-17 18:03:14

File Formats: Magic Numbers (x86)

Time of First Successful Submission: 2025-12-17 18:16:53

Reading Endianness (Python)

Time of First Successful Submission: 2025-12-17 18:19:27

Reading Endianness (C)

Time of First Successful Submission: 2025-12-20 21:19:49

Reading Endianness (x86)

Time of First Successful Submission: 2025-12-20 21:23:48

Version Information (Python)

Time of First Successful Submission: 2025-12-20 21:32:15

Version Information (C)

Time of First Successful Submission: 2025-12-20 21:36:32

Version Information (x86)

Time of First Successful Submission: 2025-12-20 21:48:05

Metadata and Data (Python)

Time of First Successful Submission: 2025-12-21 11:59:27

Metadata and Data (C)

Time of First Successful Submission: 2025-12-21 12:03:55

Metadata and Data (x86)

Time of First Successful Submission: 2025-12-21 12:09:38

Input Restrictions (Python)

Time of First Successful Submission: 2025-12-21 12:14:02

Input Restrictions (C)

Time of First Successful Submission: 2025-12-21 12:16:27

Input Restrictions (x86)

Time of First Successful Submission: 2025-12-21 12:22:46

Behold the cIMG! (Python)

Time of First Successful Submission: 2025-12-21 13:37:06

Behold the cIMG! (C)

Time of First Successful Submission: 2025-12-21 14:02:39

Behold the cIMG! (x86)

Time of First Successful Submission: 2025-12-21 14:07:04

A Basic cIMG (Python)

Time of First Successful Submission: 2025-12-21 14:28:40

A Basic cIMG (C)

Time of First Successful Submission: 2025-12-21 14:31:11

A Basic cIMG (x86)

Time of First Successful Submission: 2025-12-21 14:36:04

Internal State Mini (C)

Time of First Successful Submission: 2025-12-21 20:58:11

Internal State Mini (x86)

Time of First Successful Submission: 2025-12-21 21:21:10

Internal State (C)

Time of First Successful Submission: 2025-12-22 10:15:24

Internal State (x86)

Time of First Successful Submission: 2025-12-22 10:47:08

File Formats: Directives (C)

Time of First Successful Submission: 2025-12-22 12:09:55

File Formats: Directives (x86)

Time of First Successful Submission: 2025-12-22 13:55:53

The Patch Directive

Time of First Successful Submission: 2025-12-22 21:04:49

Optimizing for Space

Time of First Successful Submission: 2025-12-23 20:47:01

Tweaking Images

Time of First Successful Submission: 2025-12-24 10:44:49

Storage and Retrieval

Time of First Successful Submission: 2025-12-29 21:37:57

Extracting Knowledge

Time of First Successful Submission: 2025-12-30 14:09:12

Advanced Sprites

Time of First Successful Submission: 2025-12-30 21:11:59

Accessing Resources

Time of First Successful Submission: 2025-12-31 13:33:00

Unsafe Animations

Time of First Successful Submission: 2026-01-01 16:31:39

Animations

Time of First Successful Submission: 2026-01-01 17:07:37

Interoperability: Patching Data

Time of First Successful Submission: 2026-01-01 19:17:25

Patching Code

Time of First Successful Submission: 2026-01-01 20:02:52

Patching Control Flow

Time of First Successful Submission: 2026-01-01 20:38:10

Your First Overflow (easy)

Time of First Successful Submission: 2026-01-15 19:23:19

Your First Overflow (hard)

Time of First Successful Submission: 2026-01-15 19:27:41

Precision (easy)

Time of First Successful Submission: 2026-01-15 19:32:38

Precision (hard)

Time of First Successful Submission: 2026-01-15 19:36:32

Variable Control (easy)

Time of First Successful Submission: 2026-01-17 17:15:38

Variable Control (hard)

Time of First Successful Submission: 2026-01-17 17:23:45

Control Hijack (easy)

Time of First Successful Submission: 2026-01-17 17:48:47

Control Hijack (hard)

Time of First Successful Submission: 2026-01-17 17:50:31

Tricky Control Hijack (easy)

Time of First Successful Submission: 2026-01-17 18:08:05

Tricky Control Hijack (hard)

Time of First Successful Submission: 2026-01-18 13:16:56

PIEs (easy)

Time of First Successful Submission: 2026-01-18 13:30:56

PIEs (hard)

Time of First Successful Submission: 2026-01-18 13:38:08

String Lengths (easy)

Time of First Successful Submission: 2026-01-18 14:05:49

String Lengths (hard)

Time of First Successful Submission: 2026-01-18 14:11:05

Basic Shellcode

Time of First Successful Submission: 2026-01-18 14:35:14

NOP Sleds

Time of First Successful Submission: 2026-01-18 14:39:47

NULL-Free Shellcode

Time of First Successful Submission: 2026-01-18 14:42:20

Hijack to (Mapped) Shellcode (easy)

Time of First Successful Submission: 2026-01-18 19:23:50

Hijack to (Mapped) Shellcode (hard)

Time of First Successful Submission: 2026-01-18 19:26:05

Hijack to Shellcode (easy)

Time of First Successful Submission: 2026-01-18 19:51:47

Hijack to Shellcode (hard)

Time of First Successful Submission: 2026-01-18 20:06:06

ECB-to-Win (easy)

Time of First Successful Submission: 2026-01-31 21:29:47

ECB-to-Win (hard)

Time of First Successful Submission: 2026-02-01 11:58:28

ECB-to-Shellcode (easy)

Time of First Successful Submission: 2026-02-01 15:20:44

ECB-to-Shellcode (hard)

Time of First Successful Submission: 2026-02-02 12:51:43

CIMG Screenshots

Time of First Successful Submission: 2026-02-03 13:35:18

CIMG Screenshots 2

Time of First Successful Submission: 2026-02-04 15:07:38

Wily Webserver

Time of First Successful Submission: 2026-02-16 20:06:29

The Watering Hole

Time of First Successful Submission: 2026-02-18 21:40:35

Secure Chat 1

Time of First Successful Submission: 2026-02-22 19:50:51

Secure Chat 2

Time of First Successful Submission: 2026-02-23 21:10:55

Secure Chat 3

Time of First Successful Submission: 2026-02-26 13:33:59

Secure Chat 4

Time of First Successful Submission: 2026-02-26 14:53:41

Secure Chat 5

Time of First Successful Submission: 2026-02-28 15:15:47

Start Here

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Using the Terminal

Time of First Successful Submission: 2025-12-06 15:34:33

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-06 15:36:51

Using the GUI Desktop

Time of First Successful Submission: 2025-12-06 15:38:51

Pasting into the Desktop

Time of First Successful Submission: 2025-12-06 15:40:56

Restarting Challenges

Time of First Successful Submission: 2025-12-06 15:47:23

Challenge Programs

Time of First Successful Submission: 2025-12-06 15:49:48

The Flag File

Time of First Successful Submission: 2025-12-06 15:51:11

Using Privileged Mode

Time of First Successful Submission: 2025-12-06 15:55:07

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-06 15:57:02

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-06 15:58:12

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-12-06 16:08:02

Intro to Arguments

Time of First Successful Submission: 2025-12-06 16:09:06

Command History

Time of First Successful Submission: 2025-12-06 16:09:55

The Root

Time of First Successful Submission: 2025-12-06 16:12:01

Program and absolute paths

Time of First Successful Submission: 2025-12-06 16:13:03

Position thy self

Time of First Successful Submission: 2025-12-06 16:13:45

Position elsewhere

Time of First Successful Submission: 2025-12-06 16:15:03

implicit relative paths, from /

Time of First Successful Submission: 2025-12-06 16:16:26

explicit relative paths, from /

Time of First Successful Submission: 2025-12-06 16:17:25

implicit relative path

Time of First Successful Submission: 2025-12-06 16:18:03

home sweet home

Time of First Successful Submission: 2025-12-06 16:19:43

cat: not the pet, but the command!

Time of First Successful Submission: 2025-12-06 16:21:42

catting absolute paths

Time of First Successful Submission: 2025-12-06 16:22:13

more catting practice

Time of First Successful Submission: 2025-12-06 16:23:04

grepping for a needle in a haystack

Time of First Successful Submission: 2025-12-06 16:24:13

comparing files

Time of First Successful Submission: 2025-12-06 16:25:43

listing files

Time of First Successful Submission: 2025-12-06 16:26:42

touching files

Time of First Successful Submission: 2025-12-06 16:27:25

removing files

Time of First Successful Submission: 2025-12-06 16:28:04

moving files

Time of First Successful Submission: 2025-12-06 16:29:02

copying files

Time of First Successful Submission: 2025-12-06 16:29:42

hidden files

Time of First Successful Submission: 2025-12-06 16:30:21

An Epic Filesystem Quest

Time of First Successful Submission: 2025-12-06 16:35:29

making directories

Time of First Successful Submission: 2025-12-06 16:36:47

finding files

Time of First Successful Submission: 2025-12-06 16:39:14

linking files

Time of First Successful Submission: 2025-12-06 16:42:48

Learning From Documentation

Time of First Successful Submission: 2025-12-09 21:14:13

Learning Complex Usage

Time of First Successful Submission: 2025-12-09 21:15:32

Reading Manuals

Time of First Successful Submission: 2025-12-09 21:17:37

Searching Manuals

Time of First Successful Submission: 2025-12-09 21:18:46

Searching For Manuals

Time of First Successful Submission: 2025-12-09 21:27:33

Helpful Programs

Time of First Successful Submission: 2025-12-09 21:28:32

Help for Builtins

Time of First Successful Submission: 2025-12-09 21:29:59

Matching with *

Time of First Successful Submission: 2025-12-10 09:47:07

Matching with ?

Time of First Successful Submission: 2025-12-10 09:48:09

Matching with []

Time of First Successful Submission: 2025-12-10 09:49:14

Matching paths with []

Time of First Successful Submission: 2025-12-10 09:49:59

Multiple globs

Time of First Successful Submission: 2025-12-10 09:51:22

Mixing globs

Time of First Successful Submission: 2025-12-10 09:52:54

Exclusionary globbing

Time of First Successful Submission: 2025-12-10 09:54:45

Tab completion

Time of First Successful Submission: 2025-12-10 09:55:53

Multiple options for tab completion

Time of First Successful Submission: 2025-12-10 09:57:04

Tab completion on commands

Time of First Successful Submission: 2025-12-10 09:57:47

Redirecting output

Time of First Successful Submission: 2025-12-31 14:30:25

Redirecting more output

Time of First Successful Submission: 2025-12-31 14:31:19

Appending output

Time of First Successful Submission: 2025-12-31 14:32:45

Redirecting errors

Time of First Successful Submission: 2025-12-31 14:33:55

Redirecting input

Time of First Successful Submission: 2025-12-31 14:35:01

Grepping stored results

Time of First Successful Submission: 2025-12-31 14:36:08

Grepping live output

Time of First Successful Submission: 2025-12-31 14:36:54

Grepping errors

Time of First Successful Submission: 2025-12-31 14:38:27

Filtering with grep -v

Time of First Successful Submission: 2025-12-31 14:39:30

Filtering with sed

Time of First Successful Submission: 2025-12-31 14:40:59

Duplicating piped data with tee

Time of First Successful Submission: 2025-12-31 14:46:33

Process substitution for input

Time of First Successful Submission: 2026-01-01 13:49:42

Writing to multiple programs

Time of First Successful Submission: 2026-01-01 14:00:04

Split-piping stderr and stdout

Time of First Successful Submission: 2026-01-01 14:05:55

Named pipes

Time of First Successful Submission: 2026-01-01 14:11:53

Printing Variables

Time of First Successful Submission: 2026-01-01 14:33:09

Setting Variables

Time of First Successful Submission: 2026-01-01 14:33:47

Multi-word Variables

Time of First Successful Submission: 2026-01-01 14:34:35

Exporting Variables

Time of First Successful Submission: 2026-01-01 14:36:21

Printing Exported Variables

Time of First Successful Submission: 2026-01-01 14:36:50

Storing Command Output

Time of First Successful Submission: 2026-01-01 14:38:16

Reading Input

Time of First Successful Submission: 2026-01-01 14:39:41

Reading Files

Time of First Successful Submission: 2026-01-01 14:40:59

Translating characters

Time of First Successful Submission: 2026-01-01 16:05:22

Deleting characters

Time of First Successful Submission: 2026-01-01 16:06:32

Deleting newlines

Time of First Successful Submission: 2026-01-01 16:07:46

Extracting the first lines with head

Time of First Successful Submission: 2026-01-01 16:08:38

Extracting specific sections of text

Time of First Successful Submission: 2026-01-01 16:10:28

Sorting data

Time of First Successful Submission: 2026-01-01 16:11:32

Listing Processes

Time of First Successful Submission: 2026-01-02 16:10:14

Killing Processes

Time of First Successful Submission: 2026-01-02 16:11:21

Interrupting Processes

Time of First Successful Submission: 2026-01-02 16:11:56

Killing Misbehaving Processes

Time of First Successful Submission: 2026-01-02 16:14:31

Suspending Processes

Time of First Successful Submission: 2026-01-02 16:15:19

Resuming Processes

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

Backgrounding Processes

Time of First Successful Submission: 2026-01-02 16:17:11

Foregrounding Processes

Time of First Successful Submission: 2026-01-02 16:18:06

Starting Backgrounded Processes

Time of First Successful Submission: 2026-01-02 16:19:00

Process Exit Codes

Time of First Successful Submission: 2026-01-02 16:19:50

Becoming root with su

Time of First Successful Submission: 2026-01-02 16:22:11

Other users with su

Time of First Successful Submission: 2026-01-02 16:22:50

Cracking passwords

Time of First Successful Submission: 2026-01-02 16:27:20

Using sudo

Time of First Successful Submission: 2026-01-02 16:29:00

Changing File Ownership

Time of First Successful Submission: 2026-01-04 10:41:23

Groups and Files

Time of First Successful Submission: 2026-01-04 10:43:17

Fun With Groups Names

Time of First Successful Submission: 2026-01-04 10:44:08

Changing Permissions

Time of First Successful Submission: 2026-01-04 10:45:03

Executable Files

Time of First Successful Submission: 2026-01-04 10:45:38

Permission Tweaking Practice

Time of First Successful Submission: 2026-01-04 10:50:56

Permissions Setting Practice

Time of First Successful Submission: 2026-01-04 10:53:39

The SUID Bit

Time of First Successful Submission: 2026-01-04 10:55:06

Chaining with Semicolons

Time of First Successful Submission: 2026-01-04 11:00:53

Building on Success

Time of First Successful Submission: 2026-01-04 11:02:00

Handling Failure

Time of First Successful Submission: 2026-01-04 11:02:40

Your First Shell Script

Time of First Successful Submission: 2026-01-04 11:03:57

Redirecting Script Output

Time of First Successful Submission: 2026-01-04 11:05:02

Executable Shell Scripts

Time of First Successful Submission: 2026-01-04 11:06:10

Understanding Shebangs

Time of First Successful Submission: 2026-01-04 11:07:52

Scripting with Arguments

Time of First Successful Submission: 2026-01-04 11:09:00

Scripting with Conditionals

Time of First Successful Submission: 2026-01-04 11:10:34

Scripting with Default Cases

Time of First Successful Submission: 2026-01-04 11:11:41

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-01-04 11:13:32

Reading Shell Scripts

Time of First Successful Submission: 2026-01-04 11:14:30

Launching Screen

Time of First Successful Submission: 2026-01-04 14:59:09

Detaching and Attaching

Time of First Successful Submission: 2026-01-04 15:00:32

Finding Sessions

Time of First Successful Submission: 2026-01-04 15:01:58

Switching Windows

Time of First Successful Submission: 2026-01-04 15:03:17

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-01-04 15:04:16

Switching Windows (tmux)

Time of First Successful Submission: 2026-01-04 15:06:04

The PATH Variable

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

Setting PATH

Time of First Successful Submission: 2026-01-01 14:15:44

Finding Commands

Time of First Successful Submission: 2026-01-01 14:16:44

Adding Commands

Time of First Successful Submission: 2026-01-01 14:23:26

Hijacking Commands

Time of First Successful Submission: 2026-01-01 14:25:27

Bashrc Backdoor

Time of First Successful Submission: 2026-01-04 15:09:37

Sniffing Input

Time of First Successful Submission: 2026-01-04 15:14:49

Overshared Directories

Time of First Successful Submission: 2026-01-04 15:17:51

Tricky Linking

Time of First Successful Submission: 2026-01-04 15:24:52

Sniffing Process Arguments

Time of First Successful Submission: 2026-01-04 15:49:44

Snooping on Configurations

Time of First Successful Submission: 2026-01-04 15:51:29

The Fork Bomb

Time of First Successful Submission: 2026-01-04 16:09:14

Disk-Space Doomsday

Time of First Successful Submission: 2026-01-04 16:11:34

rm -rf /

Time of First Successful Submission: 2026-01-04 16:14:39

Life after rm -rf /

Time of First Successful Submission: 2026-01-04 16:17:50

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-01-04 16:20:06

GCA CTF

11 / 102 6868 / 41366

Using the Terminal

Time of First Successful Submission: 2025-12-06 15:34:33

Using the VSCode Workspace

Time of First Successful Submission: 2025-12-06 15:36:51

Using the GUI Desktop

Time of First Successful Submission: 2025-12-06 15:38:51

Pasting into the Desktop

Time of First Successful Submission: 2025-12-06 15:40:56

Connecting over SSH

Time of First Successful Submission: 2025-12-06 15:44:44

Restarting Challenges

Time of First Successful Submission: 2025-12-06 15:47:23

Challenge Programs

Time of First Successful Submission: 2025-12-06 15:49:48

The Flag File

Time of First Successful Submission: 2025-12-06 15:51:11

Using Privileged Mode

Time of First Successful Submission: 2025-12-06 15:55:07

Persistent Home Directories - One

Time of First Successful Submission: 2025-12-06 15:57:02

Persistent Home Directories - Two

Time of First Successful Submission: 2025-12-06 15:58:12