Reimu

🐧 ⌨ 🧙 💻 🔤

Intro to Programming Languages

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Commands

Time of First Successful Submission: 2024-08-18 03:49:17

Command Arguments

Time of First Successful Submission: 2024-08-18 03:50:03

Command History

Time of First Successful Submission: 2025-07-30 04:00:37

The Root Path

Time of First Successful Submission: 2024-08-18 19:42:56

Absolute Paths

Time of First Successful Submission: 2024-08-18 19:43:54

Changing position

Time of First Successful Submission: 2024-08-18 19:47:38

Changing to an Absolute Path

Time of First Successful Submission: 2024-08-18 19:48:21

Relative Paths

Time of First Successful Submission: 2024-08-18 19:51:08

Cat

Time of First Successful Submission: 2024-08-18 19:59:29

Ls

Time of First Successful Submission: 2024-08-18 20:03:13

Ls All

Time of First Successful Submission: 2024-08-18 20:05:39

Find

Time of First Successful Submission: 2024-08-18 20:34:55

Piping Echo

Time of First Successful Submission: 2025-03-29 05:20:44

Piping Stdout

Time of First Successful Submission: 2025-03-29 05:22:46

Piping Stdin

Time of First Successful Submission: 2025-03-29 05:30:53


Intro to Cybersecurity

94 / 183 2348 / 18202


Path Traversal 1

Time of First Successful Submission: 2025-08-06 08:18:28

Path Traversal 2

Time of First Successful Submission: 2025-08-06 09:18:09

CMDi 1

Time of First Successful Submission: 2025-08-06 10:44:45

CMDi 2

Time of First Successful Submission: 2025-08-06 10:47:37

CMDi 3

Time of First Successful Submission: 2025-08-06 10:53:50

CMDi 4

Time of First Successful Submission: 2025-08-06 11:00:23

CMDi 5

Time of First Successful Submission: 2025-08-06 11:03:26

CMDi 6

Time of First Successful Submission: 2025-08-06 12:16:24

Authentication Bypass 1

Time of First Successful Submission: 2025-08-07 04:04:07

Authentication Bypass 2

Time of First Successful Submission: 2025-08-07 04:12:41

SQLi 1

Time of First Successful Submission: 2025-09-07 21:25:38

SQLi 2

Time of First Successful Submission: 2025-09-07 21:31:41

SQLi 3

Time of First Successful Submission: 2025-09-15 22:45:58

SQLi 4

Time of First Successful Submission: 2025-09-15 23:00:13

SQLi 5

Time of First Successful Submission: 2025-09-15 23:26:47

XSS 1

Time of First Successful Submission: 2025-09-15 23:37:47

XSS 2

Time of First Successful Submission: 2025-09-15 23:46:27

XSS 3

Time of First Successful Submission: 2025-09-16 00:53:22

XSS 4

Time of First Successful Submission: 2025-09-16 00:58:05

XSS 5

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XSS 6

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XSS 7

Time of First Successful Submission: 2025-10-09 20:53:30

CSRF 1

Time of First Successful Submission: 2025-10-10 03:59:51

CSRF 2

Time of First Successful Submission: 2025-10-10 04:26:21

CSRF 3

Time of First Successful Submission: 2025-10-11 00:51:13

CSRF 4

Time of First Successful Submission: 2025-10-11 01:27:49

CSRF 5

Time of First Successful Submission: 2025-10-11 02:11:13

Connect

Time of First Successful Submission: 2025-10-11 02:28:10

Send

Time of First Successful Submission: 2025-10-12 01:42:15

Shutdown

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Listen

Time of First Successful Submission: 2025-10-12 01:49:44

Scan 1

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Scan 2

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Monitor 1

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Monitor 2

Time of First Successful Submission: 2025-10-12 03:48:49

Sniffing Cookies

Time of First Successful Submission: 2025-10-12 04:11:16

Network Configuration

Time of First Successful Submission: 2025-10-12 04:54:49

Firewall 1

Time of First Successful Submission: 2025-10-12 16:31:08

Firewall 2

Time of First Successful Submission: 2025-10-12 16:32:48

Firewall 3

Time of First Successful Submission: 2025-10-12 16:35:12

Denial of Service 1

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Denial of Service 2

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Denial of Service 3

Time of First Successful Submission: 2025-10-14 06:21:39

Ethernet

Time of First Successful Submission: 2025-10-15 15:36:48

IP

Time of First Successful Submission: 2025-10-15 15:44:20

TCP

Time of First Successful Submission: 2025-10-15 17:49:41

TCP Handshake

Time of First Successful Submission: 2025-10-16 23:00:46

UDP

Time of First Successful Submission: 2025-10-17 03:29:27

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: 2025-10-17 05:22:07

UDP Spoofing 4

Time of First Successful Submission: 2025-10-17 05:33:10

ARP

Time of First Successful Submission: 2025-10-17 06:15:53

Intercept

Time of First Successful Submission: 2025-10-24 00:06:14

Man-in-the-Middle

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XOR

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XORing Hex

Time of First Successful Submission: 2025-10-30 07:21:04

XORing ASCII

Time of First Successful Submission: 2025-10-30 08:15:12

XORing ASCII Strings

Time of First Successful Submission: 2025-10-30 08:42:18

One-time Pad

Time of First Successful Submission: 2025-10-31 02:25:44

One-time Pad Tampering

Time of First Successful Submission: 2025-10-31 02:48:06

Many-time Pad

Time of First Successful Submission: 2025-11-03 04:24:23

AES

Time of First Successful Submission: 2025-11-06 01:40:10

AES-ECB-CPA

Time of First Successful Submission: 2026-01-06 02:27:32

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-01-07 02:20:33

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-01-07 03:11:28

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-01-09 02:25:42

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-01-09 03:30:55

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-01-09 03:36:37

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-01-09 04:31:17

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-01-09 05:19:31

AES-CBC

Time of First Successful Submission: 2026-01-29 18:19:54

AES-CBC Tampering

Time of First Successful Submission: 2026-01-29 22:15:14

AES-CBC Resizing

Time of First Successful Submission: 2026-01-29 22:20:33

level1

Time of First Successful Submission: 2025-10-25 03:13:04

level2

Time of First Successful Submission: 2025-10-26 16:26:14

level3

Time of First Successful Submission: 2025-10-27 18:33:50

level4

Time of First Successful Submission: 2025-10-28 20:37:41

level5

Time of First Successful Submission: 2025-10-31 00:27:51

level6

Time of First Successful Submission: 2025-10-31 03:30:34

level7

Time of First Successful Submission: 2025-11-02 00:58:23

level8

Time of First Successful Submission: 2025-11-02 23:14:04

level9

Time of First Successful Submission: 2025-11-05 02:45:16

level10

Time of First Successful Submission: 2025-11-10 02:14:59

level11

Time of First Successful Submission: 2025-12-07 17:24:55

level12

Time of First Successful Submission: 2025-12-19 20:23:37

level13

Time of First Successful Submission: 2025-12-19 20:26:41

level14

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level15

Time of First Successful Submission: 2025-12-19 20:28:17

level16

Time of First Successful Submission: 2025-12-19 20:32:52

level17

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

level18

Time of First Successful Submission: 2025-12-19 20:49:35

level19

Time of First Successful Submission: 2025-12-19 20:53:43


Start Here

11 / 12 1274 / 39084


Using the Terminal

Time of First Successful Submission: 2025-08-07 03:32:48

Using the VSCode Workspace

Time of First Successful Submission: 2024-08-18 02:58:01

Using the GUI Desktop

Time of First Successful Submission: 2024-08-18 02:59:25

Pasting into the Desktop

Time of First Successful Submission: 2024-08-18 03:02:25

Restarting Challenges

Time of First Successful Submission: 2024-08-18 03:12:15

Challenge Programs

Time of First Successful Submission: 2024-08-18 03:22:34

The Flag File

Time of First Successful Submission: 2024-08-18 03:23:53

Using Privileged Mode

Time of First Successful Submission: 2024-08-18 03:28:24

Persistent Home Directories - One

Time of First Successful Submission: 2024-08-18 03:31:54

Persistent Home Directories - Two

Time of First Successful Submission: 2024-08-18 03:32:49


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2024-08-18 03:49:17

Intro to Arguments

Time of First Successful Submission: 2024-08-18 03:50:03

Command History

Time of First Successful Submission: 2025-07-30 04:00:37

The Root

Time of First Successful Submission: 2024-08-18 19:42:56

Program and absolute paths

Time of First Successful Submission: 2024-08-18 19:43:54

Position thy self

Time of First Successful Submission: 2024-08-18 19:47:38

Position elsewhere

Time of First Successful Submission: 2024-08-18 19:48:21

implicit relative paths, from /

Time of First Successful Submission: 2024-08-18 19:51:08

explicit relative paths, from /

Time of First Successful Submission: 2024-08-18 19:52:09

implicit relative path

Time of First Successful Submission: 2024-08-18 19:53:11

home sweet home

Time of First Successful Submission: 2024-08-18 19:56:58

cat: not the pet, but the command!

Time of First Successful Submission: 2024-08-18 19:59:29

catting absolute paths

Time of First Successful Submission: 2024-08-18 19:59:59

more catting practice

Time of First Successful Submission: 2024-08-18 20:00:38

grepping for a needle in a haystack

Time of First Successful Submission: 2024-08-18 20:01:51

comparing files

Time of First Successful Submission: 2025-07-30 05:32:13

listing files

Time of First Successful Submission: 2024-08-18 20:03:13

touching files

Time of First Successful Submission: 2024-08-18 20:04:08

removing files

Time of First Successful Submission: 2024-08-18 20:04:40

moving files

Time of First Successful Submission: 2025-07-30 05:31:31

copying files

Time of First Successful Submission: 2025-11-07 00:53:27

hidden files

Time of First Successful Submission: 2024-08-18 20:05:39

An Epic Filesystem Quest

Time of First Successful Submission: 2024-08-18 20:12:35

making directories

Time of First Successful Submission: 2024-08-18 20:28:59

finding files

Time of First Successful Submission: 2024-08-18 20:34:55

linking files

Time of First Successful Submission: 2024-08-18 20:39:21

Learning From Documentation

Time of First Successful Submission: 2024-08-18 20:47:37

Learning Complex Usage

Time of First Successful Submission: 2024-08-18 20:48:35

Reading Manuals

Time of First Successful Submission: 2024-08-18 20:50:54

Searching Manuals

Time of First Successful Submission: 2024-08-18 20:52:03

Searching For Manuals

Time of First Successful Submission: 2024-08-18 20:58:06

Helpful Programs

Time of First Successful Submission: 2024-08-18 20:59:08

Help for Builtins

Time of First Successful Submission: 2024-08-18 21:00:20

Matching with *

Time of First Successful Submission: 2025-03-29 04:44:23

Matching with ?

Time of First Successful Submission: 2025-03-29 04:45:40

Matching with []

Time of First Successful Submission: 2025-03-29 04:47:19

Matching paths with []

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Multiple globs

Time of First Successful Submission: 2025-07-30 05:35:40

Mixing globs

Time of First Successful Submission: 2025-03-29 05:08:11

Exclusionary globbing

Time of First Successful Submission: 2025-03-29 05:10:23

Tab completion

Time of First Successful Submission: 2025-07-30 05:37:43

Multiple options for tab completion

Time of First Successful Submission: 2025-07-30 05:39:12

Tab completion on commands

Time of First Successful Submission: 2025-07-30 05:39:41

Redirecting output

Time of First Successful Submission: 2025-03-29 05:20:44

Redirecting more output

Time of First Successful Submission: 2025-03-29 05:22:46

Appending output

Time of First Successful Submission: 2025-03-29 05:24:46

Redirecting errors

Time of First Successful Submission: 2025-03-29 05:27:16

Redirecting input

Time of First Successful Submission: 2025-03-29 05:30:53

Grepping stored results

Time of First Successful Submission: 2025-03-29 05:33:04

Grepping live output

Time of First Successful Submission: 2025-03-29 05:34:55

Grepping errors

Time of First Successful Submission: 2025-03-29 05:36:51

Filtering with grep -v

Time of First Successful Submission: 2025-07-30 05:43:05

Filtering with sed

Time of First Successful Submission: 2025-11-07 00:57:38

Duplicating piped data with tee

Time of First Successful Submission: 2025-03-29 05:41:22

Process substitution for input

Time of First Successful Submission: 2025-07-30 05:57:02

Writing to multiple programs

Time of First Successful Submission: 2025-03-29 05:49:03

Split-piping stderr and stdout

Time of First Successful Submission: 2025-03-29 06:01:48

Named pipes

Time of First Successful Submission: 2025-07-30 06:09:54

Printing Variables

Time of First Successful Submission: 2025-03-29 06:09:31

Setting Variables

Time of First Successful Submission: 2025-03-29 06:11:01

Multi-word Variables

Time of First Successful Submission: 2025-03-29 06:11:59

Exporting Variables

Time of First Successful Submission: 2025-03-29 06:16:44

Printing Exported Variables

Time of First Successful Submission: 2025-03-29 06:18:00

Storing Command Output

Time of First Successful Submission: 2025-03-29 06:23:00

Reading Input

Time of First Successful Submission: 2025-03-29 06:24:58

Reading Files

Time of First Successful Submission: 2025-03-29 06:30:55

Translating characters

Time of First Successful Submission: 2025-07-30 06:47:24

Deleting characters

Time of First Successful Submission: 2025-07-30 06:48:17

Deleting newlines

Time of First Successful Submission: 2025-07-30 06:50:19

Extracting the first lines with head

Time of First Successful Submission: 2025-07-30 06:52:36

Extracting specific sections of text

Time of First Successful Submission: 2025-07-30 06:56:40

Sorting data

Time of First Successful Submission: 2025-07-30 06:57:31

Listing Processes

Time of First Successful Submission: 2025-03-29 06:44:56

Killing Processes

Time of First Successful Submission: 2025-03-29 06:47:15

Interrupting Processes

Time of First Successful Submission: 2025-03-29 06:48:19

Killing Misbehaving Processes

Time of First Successful Submission: 2025-07-30 06:16:10

Suspending Processes

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Resuming Processes

Time of First Successful Submission: 2025-03-29 06:49:36

Backgrounding Processes

Time of First Successful Submission: 2025-03-29 06:54:19

Foregrounding Processes

Time of First Successful Submission: 2025-03-29 06:55:36

Starting Backgrounded Processes

Time of First Successful Submission: 2025-03-29 06:57:50

Process Exit Codes

Time of First Successful Submission: 2025-03-29 07:00:24

Becoming root with su

Time of First Successful Submission: 2025-03-29 08:16:19

Other users with su

Time of First Successful Submission: 2025-03-29 08:17:44

Cracking passwords

Time of First Successful Submission: 2025-03-29 08:23:45

Using sudo

Time of First Successful Submission: 2025-03-29 08:26:12

Changing File Ownership

Time of First Successful Submission: 2025-03-29 07:32:04

Groups and Files

Time of First Successful Submission: 2025-03-29 07:42:47

Fun With Groups Names

Time of First Successful Submission: 2025-03-29 07:43:52

Changing Permissions

Time of First Successful Submission: 2025-03-29 07:49:05

Executable Files

Time of First Successful Submission: 2025-03-29 07:51:45

Permission Tweaking Practice

Time of First Successful Submission: 2025-03-29 07:55:35

Permissions Setting Practice

Time of First Successful Submission: 2025-03-29 08:00:20

The SUID Bit

Time of First Successful Submission: 2025-03-29 08:04:06

Chaining with Semicolons

Time of First Successful Submission: 2025-03-29 08:28:09

Building on Success

Time of First Successful Submission: 2025-07-30 06:18:46

Handling Failure

Time of First Successful Submission: 2025-07-30 06:19:23

Your First Shell Script

Time of First Successful Submission: 2025-03-29 08:30:09

Redirecting Script Output

Time of First Successful Submission: 2025-03-29 08:32:34

Executable Shell Scripts

Time of First Successful Submission: 2025-03-29 08:33:48

Understanding Shebangs

Time of First Successful Submission: 2025-07-30 06:21:43

Scripting with Arguments

Time of First Successful Submission: 2025-07-30 06:26:03

Scripting with Conditionals

Time of First Successful Submission: 2025-07-30 06:27:39

Scripting with Default Cases

Time of First Successful Submission: 2025-07-30 06:35:16

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-07-30 06:37:52

Reading Shell Scripts

Time of First Successful Submission: 2025-10-11 02:25:15

Launching Screen

Time of First Successful Submission: 2025-07-30 07:07:43

Detaching and Attaching

Time of First Successful Submission: 2025-07-30 07:09:32

Finding Sessions

Time of First Successful Submission: 2025-07-30 07:12:13

Switching Windows

Time of First Successful Submission: 2025-07-30 07:16:09

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-07-30 07:20:23

Switching Windows (tmux)

Time of First Successful Submission: 2025-07-30 07:21:59

The PATH Variable

Time of First Successful Submission: 2025-03-29 08:35:59

Setting PATH

Time of First Successful Submission: 2025-03-29 08:39:04

Finding Commands

Time of First Successful Submission: 2025-07-30 06:18:02

Adding Commands

Time of First Successful Submission: 2025-03-29 08:44:47

Hijacking Commands

Time of First Successful Submission: 2025-03-29 08:46:05

Bashrc Backdoor

Time of First Successful Submission: 2025-07-30 07:26:50

Sniffing Input

Time of First Successful Submission: 2025-07-30 07:47:38

Overshared Directories

Time of First Successful Submission: 2025-07-30 07:58:19

Tricky Linking

Time of First Successful Submission: 2025-07-30 08:07:18

Sniffing Process Arguments

Time of First Successful Submission: 2025-07-30 08:11:26

Snooping on Configurations

Time of First Successful Submission: 2025-07-30 08:15:31

The Fork Bomb

Time of First Successful Submission: 2025-07-30 08:23:13

Disk-Space Doomsday

Time of First Successful Submission: 2025-07-30 08:27:35

rm -rf /

Time of First Successful Submission: 2025-07-30 08:33:59

Life after rm -rf /

Time of First Successful Submission: 2025-07-30 08:41:02

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-07-30 08:43:16


Computing 101

69 / 69 417 / 19689


Your First Register

Time of First Successful Submission: 2025-03-30 14:34:37

Your First Syscall

Time of First Successful Submission: 2025-03-30 14:39:53

Exit Codes

Time of First Successful Submission: 2025-03-30 14:43:07

Building Executables

Time of First Successful Submission: 2025-03-30 14:51:08

Moving Between Registers

Time of First Successful Submission: 2025-03-30 14:55:11

Tracing Syscalls

Time of First Successful Submission: 2025-03-30 15:01:48

Starting GDB

Time of First Successful Submission: 2025-03-30 15:06:06

Starting Programs in GDB

Time of First Successful Submission: 2025-03-30 15:08:58

Loading From Memory

Time of First Successful Submission: 2025-04-10 09:50:01

More Loading Practice

Time of First Successful Submission: 2025-04-10 22:13:04

Dereferencing Pointers

Time of First Successful Submission: 2025-04-10 22:18:05

Dereferencing Yourself

Time of First Successful Submission: 2025-04-10 22:20:48

Dereferencing with Offsets

Time of First Successful Submission: 2025-04-10 22:24:16

Stored Addresses

Time of First Successful Submission: 2025-04-10 22:30:57

Double Dereference

Time of First Successful Submission: 2025-04-11 06:53:13

Triple Dereference

Time of First Successful Submission: 2025-04-11 06:54:41

Writing Output

Time of First Successful Submission: 2025-04-12 14:29:29

Chaining Syscalls

Time of First Successful Submission: 2025-04-12 14:49:49

Writing Strings

Time of First Successful Submission: 2025-04-12 14:50:40

Reading Data

Time of First Successful Submission: 2025-04-12 15:06:27

set-register

Time of First Successful Submission: 2025-04-13 23:38:41

set-multiple-registers

Time of First Successful Submission: 2025-04-13 23:40:05

add-to-register

Time of First Successful Submission: 2025-04-13 23:43:09

linear-equation-registers

Time of First Successful Submission: 2025-04-13 23:47:29

integer-division

Time of First Successful Submission: 2025-04-13 23:56:43

modulo-operation

Time of First Successful Submission: 2025-04-14 00:00:12

set-upper-byte

Time of First Successful Submission: 2025-04-14 00:04:51

efficient-modulo

Time of First Successful Submission: 2025-04-14 00:25:49

byte-extraction

Time of First Successful Submission: 2025-04-14 00:34:52

bitwise-and

Time of First Successful Submission: 2025-04-14 00:42:48

check-even

Time of First Successful Submission: 2025-04-14 01:34:27

memory-read

Time of First Successful Submission: 2025-04-14 01:40:17

memory-write

Time of First Successful Submission: 2025-04-14 01:48:51

memory-increment

Time of First Successful Submission: 2025-04-14 01:57:37

byte-access

Time of First Successful Submission: 2025-04-14 02:01:38

memory-size-access

Time of First Successful Submission: 2025-04-14 10:53:15

little-endian-write

Time of First Successful Submission: 2025-04-14 10:58:22

memory-sum

Time of First Successful Submission: 2025-04-14 11:27:37

stack-subtraction

Time of First Successful Submission: 2025-04-14 11:44:11

swap-stack-values

Time of First Successful Submission: 2025-04-14 11:48:38

average-stack-values

Time of First Successful Submission: 2025-04-14 13:03:22

absolute-jump

Time of First Successful Submission: 2025-04-14 13:57:31

relative-jump

Time of First Successful Submission: 2025-04-14 14:09:37

jump-trampoline

Time of First Successful Submission: 2025-04-14 14:20:55

conditional-jump

Time of First Successful Submission: 2025-04-14 22:33:53

indirect-jump

Time of First Successful Submission: 2025-04-16 02:13:43

average-loop

Time of First Successful Submission: 2025-04-19 19:15:42

count-non-zero

Time of First Successful Submission: 2025-04-19 20:04:32

string-lower

Time of First Successful Submission: 2025-04-20 05:51:36

most-common-byte

Time of First Successful Submission: 2025-04-21 17:13:29

Debugging Programs

Time of First Successful Submission: 2025-05-12 00:07:35

Inspecting Registers

Time of First Successful Submission: 2025-05-12 00:09:10

Examining Memory

Time of First Successful Submission: 2025-05-12 00:48:11

Setting Breakpoints

Time of First Successful Submission: 2025-05-12 01:45:38

GDB Scripting

Time of First Successful Submission: 2025-05-12 01:58:40

Modifying Data

Time of First Successful Submission: 2025-05-12 02:16:16

Modifying Execution

Time of First Successful Submission: 2025-05-12 02:18:37

Broken Functions

Time of First Successful Submission: 2025-05-12 02:24:47

Exit

Time of First Successful Submission: 2025-05-15 18:33:32

Socket

Time of First Successful Submission: 2025-05-15 19:42:27

Bind

Time of First Successful Submission: 2025-05-15 21:37:08

Listen

Time of First Successful Submission: 2025-05-15 21:48:06

Accept

Time of First Successful Submission: 2025-05-16 02:01:52

Static Response

Time of First Successful Submission: 2025-05-16 03:20:24

Dynamic Response

Time of First Successful Submission: 2025-05-17 03:26:28

Iterative GET Server

Time of First Successful Submission: 2025-05-17 03:38:10

Concurrent GET Server

Time of First Successful Submission: 2025-05-17 22:51:37

Concurrent POST Server

Time of First Successful Submission: 2025-05-18 02:09:25

Web Server

Time of First Successful Submission: 2025-05-18 18:35:31


Playing With Programs

116 / 116 275 / 22541


What's the password?

Time of First Successful Submission: 2025-05-12 11:20:46

... and again!

Time of First Successful Submission: 2025-05-12 11:33:38

Newline Troubles

Time of First Successful Submission: 2025-05-12 11:42:35

Reasoning about files

Time of First Successful Submission: 2025-05-12 11:56:19

Specifying Filenames

Time of First Successful Submission: 2025-05-12 11:57:10

Binary and Hex Encoding

Time of First Successful Submission: 2025-05-12 12:25:22

More Hex

Time of First Successful Submission: 2025-05-12 12:27:05

Decoding Hex

Time of First Successful Submission: 2025-05-12 12:38:51

Decoding Practice

Time of First Successful Submission: 2025-05-19 01:28:22

Encoding Practice

Time of First Successful Submission: 2025-07-20 01:01:10

Hex-encoding ASCII

Time of First Successful Submission: 2025-07-20 01:05:02

Nested Encoding

Time of First Successful Submission: 2025-07-20 01:14:42

Hex-encoding UTF-8

Time of First Successful Submission: 2025-07-20 01:17:36

UTF Mixups

Time of First Successful Submission: 2025-07-20 01:19:49

Modifying Encoded Data

Time of First Successful Submission: 2025-07-20 01:27:08

Decoding Base64

Time of First Successful Submission: 2025-07-20 01:28:17

Encoding Base64

Time of First Successful Submission: 2025-07-20 01:29:15

Dealing with Obfuscation

Time of First Successful Submission: 2025-07-20 01:30:27

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-07-20 01:31:46

Your First HTTP Request

Time of First Successful Submission: 2025-07-28 02:38:00

Reading Flask

Time of First Successful Submission: 2025-07-28 03:05:18

Commented Data

Time of First Successful Submission: 2025-07-28 03:27:39

HTTP Metadata

Time of First Successful Submission: 2025-07-28 03:32:20

HTTP (netcat)

Time of First Successful Submission: 2025-07-28 03:36:24

HTTP Paths (netcat)

Time of First Successful Submission: 2025-07-28 03:39:08

HTTP (curl)

Time of First Successful Submission: 2025-07-28 03:40:41

HTTP (python)

Time of First Successful Submission: 2025-07-28 03:53:38

HTTP Host Header (python)

Time of First Successful Submission: 2025-07-28 04:10:51

HTTP Host Header (curl)

Time of First Successful Submission: 2025-07-28 04:14:41

HTTP Host Header (netcat)

Time of First Successful Submission: 2025-07-28 04:18:03

URL Encoding (netcat)

Time of First Successful Submission: 2025-07-28 04:20:11

HTTP GET Parameters

Time of First Successful Submission: 2025-07-28 04:22:53

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2025-07-28 04:27:28

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2025-07-28 04:30:40

HTTP Forms

Time of First Successful Submission: 2025-07-28 04:32:40

HTTP Forms (curl)

Time of First Successful Submission: 2025-07-28 05:25:52

HTTP Forms (netcat)

Time of First Successful Submission: 2025-07-28 05:31:22

HTTP Forms (python)

Time of First Successful Submission: 2025-07-28 06:05:06

HTTP Forms Without Forms

Time of First Successful Submission: 2025-07-28 06:11:44

Multiple Form Fields (curl)

Time of First Successful Submission: 2025-07-28 06:26:06

Multiple Form Fields (netcat)

Time of First Successful Submission: 2025-07-28 06:35:06

HTTP Redirects (netcat)

Time of First Successful Submission: 2025-07-28 06:39:27

HTTP Redirects (curl)

Time of First Successful Submission: 2025-07-28 06:42:06

HTTP Redirects (python)

Time of First Successful Submission: 2025-07-28 06:47:40

HTTP Cookies (curl)

Time of First Successful Submission: 2025-07-28 06:51:17

HTTP Cookies (netcat)

Time of First Successful Submission: 2025-07-28 06:53:23

HTTP Cookies (python)

Time of First Successful Submission: 2025-07-28 07:05:39

Server State (python)

Time of First Successful Submission: 2025-07-28 07:06:28

Listening Web

Time of First Successful Submission: 2025-07-28 07:11:53

Speaking Redirects

Time of First Successful Submission: 2025-07-28 07:30:40

JavaScript Redirects

Time of First Successful Submission: 2025-07-28 07:40:26

Including JavaScript

Time of First Successful Submission: 2025-07-29 01:38:35

HTTP (javascript)

Time of First Successful Submission: 2025-07-29 01:59:19

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2025-07-29 02:30:52

HTTP Forms (javascript)

Time of First Successful Submission: 2025-07-29 02:49:43

cat

Time of First Successful Submission: 2025-07-29 04:23:56

more

Time of First Successful Submission: 2025-07-29 04:24:08

less

Time of First Successful Submission: 2025-07-29 04:24:21

tail

Time of First Successful Submission: 2025-07-29 04:24:49

head

Time of First Successful Submission: 2025-07-29 04:25:02

sort

Time of First Successful Submission: 2025-07-29 04:25:15

vim

Time of First Successful Submission: 2025-07-29 04:25:50

emacs

Time of First Successful Submission: 2025-07-29 04:26:09

nano

Time of First Successful Submission: 2025-07-29 04:26:23

rev

Time of First Successful Submission: 2025-07-29 04:26:48

od

Time of First Successful Submission: 2025-07-29 04:30:29

hd

Time of First Successful Submission: 2025-07-29 04:32:10

xxd

Time of First Successful Submission: 2025-07-29 04:32:49

base32

Time of First Successful Submission: 2025-07-29 04:34:45

base64

Time of First Successful Submission: 2025-07-29 04:37:13

split

Time of First Successful Submission: 2025-07-29 04:40:13

gzip

Time of First Successful Submission: 2025-07-29 04:42:44

bzip2

Time of First Successful Submission: 2025-07-29 04:44:45

zip

Time of First Successful Submission: 2025-07-29 04:51:40

tar

Time of First Successful Submission: 2025-07-29 04:54:49

ar

Time of First Successful Submission: 2025-07-29 05:11:22

cpio

Time of First Successful Submission: 2025-07-29 05:16:10

genisoimage

Time of First Successful Submission: 2025-07-29 05:30:50

env

Time of First Successful Submission: 2025-07-29 05:31:35

find

Time of First Successful Submission: 2025-07-29 05:37:37

make

Time of First Successful Submission: 2025-07-29 05:47:40

nice

Time of First Successful Submission: 2025-07-29 05:48:49

timeout

Time of First Successful Submission: 2025-07-29 05:49:31

stdbuf

Time of First Successful Submission: 2025-07-29 05:50:53

setarch

Time of First Successful Submission: 2025-07-29 05:52:30

watch

Time of First Successful Submission: 2025-07-29 05:53:07

socat

Time of First Successful Submission: 2025-07-29 05:59:42

whiptail

Time of First Successful Submission: 2025-07-29 06:07:27

awk

Time of First Successful Submission: 2025-07-29 06:10:37

sed

Time of First Successful Submission: 2025-07-29 06:11:58

ed

Time of First Successful Submission: 2025-07-29 06:14:04

chown

Time of First Successful Submission: 2025-07-29 06:14:39

chmod

Time of First Successful Submission: 2025-07-29 06:16:20

cp

Time of First Successful Submission: 2025-07-29 06:17:11

mv

Time of First Successful Submission: 2025-07-29 06:28:52

perl

Time of First Successful Submission: 2025-07-29 06:32:55

python

Time of First Successful Submission: 2025-07-29 06:38:35

ruby

Time of First Successful Submission: 2025-07-29 06:39:34

bash

Time of First Successful Submission: 2025-07-29 06:41:29

date

Time of First Successful Submission: 2025-07-29 06:44:03

dmesg

Time of First Successful Submission: 2025-07-29 06:44:55

wc

Time of First Successful Submission: 2025-07-29 06:46:25

gcc

Time of First Successful Submission: 2025-07-29 06:57:42

as

Time of First Successful Submission: 2025-07-29 06:59:11

wget

Time of First Successful Submission: 2025-07-29 07:41:53

ssh-keygen

Time of First Successful Submission: 2025-07-29 08:01:48

SQL Queries

Time of First Successful Submission: 2025-07-30 01:51:23

Filtering SQL

Time of First Successful Submission: 2025-07-30 02:02:46

Choosing Columns

Time of First Successful Submission: 2025-07-30 03:26:49

Exclusionary Filtering

Time of First Successful Submission: 2025-07-30 03:29:20

Filtering Strings

Time of First Successful Submission: 2025-07-30 03:31:07

Filtering on Expressions

Time of First Successful Submission: 2025-07-30 04:35:42

SELECTing Expressions

Time of First Successful Submission: 2025-07-30 05:02:01

Composite Conditions

Time of First Successful Submission: 2025-07-30 05:10:32

Reaching Your LIMITs

Time of First Successful Submission: 2025-07-30 05:13:03

Querying Metadata

Time of First Successful Submission: 2025-07-30 05:14:24


CybHer Dojo

11 / 104 1444 / 39302


Using the Terminal

Time of First Successful Submission: 2025-08-07 03:32:48

Using the VSCode Workspace

Time of First Successful Submission: 2024-08-18 02:58:01

Using the GUI Desktop

Time of First Successful Submission: 2024-08-18 02:59:25

Pasting into the Desktop

Time of First Successful Submission: 2024-08-18 03:02:25

Restarting Challenges

Time of First Successful Submission: 2024-08-18 03:12:15

Getting Help

Time of First Successful Submission: 2024-08-18 03:20:48

Challenge Programs

Time of First Successful Submission: 2024-08-18 03:22:34

The Flag File

Time of First Successful Submission: 2024-08-18 03:23:53

Using Privileged Mode

Time of First Successful Submission: 2024-08-18 03:28:24

Persistent Home Directories - One

Time of First Successful Submission: 2024-08-18 03:31:54

Persistent Home Directories - Two

Time of First Successful Submission: 2024-08-18 03:32:49


GCA CTF

11 / 104 1444 / 39302


Using the Terminal

Time of First Successful Submission: 2025-08-07 03:32:48

Using the VSCode Workspace

Time of First Successful Submission: 2024-08-18 02:58:01

Using the GUI Desktop

Time of First Successful Submission: 2024-08-18 02:59:25

Pasting into the Desktop

Time of First Successful Submission: 2024-08-18 03:02:25

Restarting Challenges

Time of First Successful Submission: 2024-08-18 03:12:15

Getting Help

Time of First Successful Submission: 2024-08-18 03:20:48

Challenge Programs

Time of First Successful Submission: 2024-08-18 03:22:34

The Flag File

Time of First Successful Submission: 2024-08-18 03:23:53

Using Privileged Mode

Time of First Successful Submission: 2024-08-18 03:28:24

Persistent Home Directories - One

Time of First Successful Submission: 2024-08-18 03:31:54

Persistent Home Directories - Two

Time of First Successful Submission: 2024-08-18 03:32:49


Hacker History

8 / 8 16 / 142


External BBS (login)

Time of First Successful Submission: 2025-02-17 23:24:51

Internal BBS

Time of First Successful Submission: 2025-03-29 11:06:44

Join an IRC Server

Time of First Successful Submission: 2025-03-29 11:14:38

Join an IRC Server (with an IRC Client)

Time of First Successful Submission: 2025-03-29 11:15:13

Change your nickname

Time of First Successful Submission: 2025-03-29 11:17:31

Join a channel

Time of First Successful Submission: 2025-03-29 11:20:23

Message a channel

Time of First Successful Submission: 2025-03-29 11:23:45

Remove another user

Time of First Successful Submission: 2025-03-29 11:27:02


Honors Dojo

6 / 17 42 / 94



Honors Dojo

6 / 11 42 / 94



Honors Dojo

6 / 17 42 / 94


Join an IRC Server

Time of First Successful Submission: 2025-03-30 10:32:04

Join an IRC Server (with an IRC Client)

Time of First Successful Submission: 2025-03-30 10:32:37

Change your nickname

Time of First Successful Submission: 2025-03-30 10:33:45

Join a channel

Time of First Successful Submission: 2025-03-30 10:34:33

Message a channel

Time of First Successful Submission: 2025-03-30 10:35:24

Remove another user

Time of First Successful Submission: 2025-03-30 10:37:16


Privilege Escalation

17 / 561 50 / 145


ash

Time of First Successful Submission: 2025-11-13 00:07:33

base32

Time of First Successful Submission: 2025-11-15 00:24:46

base64

Time of First Successful Submission: 2026-01-08 02:33:26

bash

Time of First Successful Submission: 2025-11-08 02:26:44

busybox

Time of First Successful Submission: 2025-11-09 01:57:43

cat

Time of First Successful Submission: 2025-11-04 02:06:33

chmod

Time of First Successful Submission: 2026-02-01 02:37:59

csh

Time of First Successful Submission: 2025-11-14 01:56:29

dash

Time of First Successful Submission: 2026-01-09 02:15:53

fish

Time of First Successful Submission: 2025-11-14 03:55:26

head

Time of First Successful Submission: 2025-11-11 01:04:52

hexdump

Time of First Successful Submission: 2026-01-12 01:23:39

less

Time of First Successful Submission: 2025-11-12 02:21:13

strings

Time of First Successful Submission: 2026-01-16 02:53:12

su

Time of First Successful Submission: 2026-01-28 02:40:19

tail

Time of First Successful Submission: 2026-01-17 02:40:01

zsh

Time of First Successful Submission: 2026-01-28 23:06:48


Pwntools Tutorials

3 / 12 659 / 1139


Level 0.0

Time of First Successful Submission: 2025-04-22 00:20:46

Level 1.0

Time of First Successful Submission: 2025-09-06 22:14:06

Level 1.1

Time of First Successful Submission: 2025-09-06 23:18:57