Tclancy3

🐧 💻

Intro to Programming Languages

163 / 253 446 / 49403


Lecture 1.1. Course Environment

Time of First Successful Submission: 2025-08-24 09:09:00

Lab 1.1 - Start Terminal

Time of First Successful Submission: 2025-08-26 15:48:19

Lecture 1.2. Linux Shells

Time of First Successful Submission: 2025-08-26 15:53:10

Lecture 1.3. Linux File System

Time of First Successful Submission: 2025-08-26 15:58:27

Lecture 1.4. Executing Programs

Time of First Successful Submission: 2025-08-26 16:01:04

Lecture 1.5. Common Commands

Time of First Successful Submission: 2025-08-26 16:19:04

Lab 1.5.2 - Using ls and cd

Time of First Successful Submission: 2025-08-26 23:29:44

Lab 1.5.3 - Using grep

Time of First Successful Submission: 2025-08-26 23:39:19

Lecture 1.6. Redirection of I/O

Time of First Successful Submission: 2025-08-26 23:51:17

Lab 1.6 - Using grep and pipe

Time of First Successful Submission: 2025-08-26 23:55:30

Lecture 1.7. Regular Expressions

Time of First Successful Submission: 2025-08-26 23:58:10

Lecture 1.8. Misc Linux

Time of First Successful Submission: 2025-08-27 00:03:05

Lecture 1.9. Testing Code on pwn.college

Time of First Successful Submission: 2025-08-27 00:04:48

Lab 1.9 - Test some If Statements

Time of First Successful Submission: 2025-08-27 05:08:35

P1.0 Level 1 Open /flag in VSCode

Time of First Successful Submission: 2025-08-27 05:12:32

Commands

Time of First Successful Submission: 2026-08-21 20:34:58

Command Arguments

Time of First Successful Submission: 2026-08-21 20:38:37

Command History

Time of First Successful Submission: 2026-08-21 20:40:36

The Root Path

Time of First Successful Submission: 2026-08-21 20:45:52

Absolute Paths

Time of First Successful Submission: 2026-08-21 20:47:11

Changing position

Time of First Successful Submission: 2026-08-21 21:04:37

Changing to an Absolute Path

Time of First Successful Submission: 2026-08-21 21:06:31

Relative Paths

Time of First Successful Submission: 2026-08-21 23:18:59

P1.0 Level 5 read

Time of First Successful Submission: 2025-08-27 23:10:09

Cat

Time of First Successful Submission: 2026-08-23 18:08:12

Ls

Time of First Successful Submission: 2026-08-23 18:21:12

Ls All

Time of First Successful Submission: 2026-08-23 18:38:24

P1.0 Level 2 list dir

Time of First Successful Submission: 2025-08-27 05:16:51

Find

Time of First Successful Submission: 2026-08-23 21:30:23

P1.0 Level 3 change dir

Time of First Successful Submission: 2025-08-27 05:18:05

P1.0 Level 4 move

Time of First Successful Submission: 2025-08-27 23:09:06

P1.0 Level 6 grep

Time of First Successful Submission: 2025-08-27 23:10:51

P1.0 Level 7 execute

Time of First Successful Submission: 2025-08-27 23:12:03

Piping Echo

Time of First Successful Submission: 2026-08-25 07:51:07

Piping Stdout

Time of First Successful Submission: 2026-08-25 07:52:12

Piping Stdin

Time of First Successful Submission: 2026-08-25 07:56:45

P1.0 Level 8 stdin

Time of First Successful Submission: 2025-08-27 23:13:39

P1.0 Level 9 pipe

Time of First Successful Submission: 2025-08-27 23:14:42

P1.0 Level 10 args

Time of First Successful Submission: 2025-08-27 23:15:23

P1.0 Level 11 gccpipe

Time of First Successful Submission: 2025-08-27 23:27:15

P1.0 Level 12 speedy

Time of First Successful Submission: 2025-08-27 23:39:30

P1.0 Level 13 testing

Time of First Successful Submission: 2025-08-28 04:25:56

P1.0 Level 14 ifs test

Time of First Successful Submission: 2025-08-28 04:29:14

Lecture 2.1.1.0 Paradigms and C

Time of First Successful Submission: 2025-08-28 01:31:35

Lecture 2.1.2. First C Program and Vars

Time of First Successful Submission: 2025-08-28 01:35:20

Lecture 2.1.2.1. Standard Output

Time of First Successful Submission: 2025-08-28 01:37:39

Lecture 2.1.2.2. Standard In

Time of First Successful Submission: 2025-08-28 01:40:00

Lab 2.1.2.1 - C Input

Time of First Successful Submission: 2025-08-28 03:03:46

Lecture 2.1.2.3. Flow Control & Command Line Arguments

Time of First Successful Submission: 2025-08-28 01:42:29

EzLab 2.1.2.3 - Control Flow

Time of First Successful Submission: 2025-08-28 03:07:38

Lecture 2.1.3.0 Dec & Def Functions

Time of First Successful Submission: 2025-08-28 03:10:05

Lecture 2.1.3.1. Globals & Locals

Time of First Successful Submission: 2025-08-28 01:45:40

Lecture 2.1.3.2. Function Params and Ret Vals

Time of First Successful Submission: 2025-08-28 01:47:48

EzLab 2.1.3.2 Pass by Value

Time of First Successful Submission: 2025-08-28 03:33:49

Lab 2.1.3.1 - Functions

Time of First Successful Submission: 2025-08-28 03:56:08

Lecture 2.1.4. Global and Local Memory

Time of First Successful Submission: 2025-08-28 01:51:26

Lecture 2.1.4.1. Function Frames

Time of First Successful Submission: 2025-08-28 01:53:47

Lecture 2.1.5. Debugging C Programs

Time of First Successful Submission: 2025-08-28 02:35:04

Lab 2.1.5.1 - Using VSCode Debugger

Time of First Successful Submission: 2025-08-28 04:19:36

P2.1 Level 01 C Force

Time of First Successful Submission: 2025-09-02 04:05:04

P2.1 Level 02 C Args

Time of First Successful Submission: 2025-09-02 04:08:28

P2.1 Level 04 getchar

Time of First Successful Submission: 2025-09-04 07:38:40

P2.1 Level 05 add-n-sub

Time of First Successful Submission: 2025-09-04 07:32:57

P2.1 Level 06 debug me

Time of First Successful Submission: 2025-09-04 07:30:35

Lecture 2.2.1.1. C-Arrays

Time of First Successful Submission: 2025-09-04 08:25:35

Lecture 2.2.2. C-Strings

Time of First Successful Submission: 2025-09-04 08:28:54

Lab 2.2.2.0 - Print C-String by Character

Time of First Successful Submission: 2025-09-04 20:53:43

Lab 2.2.2.1 - Debugging with Seg Faults

Time of First Successful Submission: 2025-09-04 20:57:13

Lecture 2.2.3.1. Input to String

Time of First Successful Submission: 2025-09-04 08:31:39

Lecture 2.2.3.2 Using fgets

Time of First Successful Submission: 2025-09-04 08:36:03

Lecture 2.2.3.3. Input Buffer

Time of First Successful Submission: 2025-09-04 08:39:30

Lecture 2.2.4. File operations

Time of First Successful Submission: 2025-09-04 08:42:53

Lab 2.2.4.1 - LeeT CaSe

Time of First Successful Submission: 2025-09-04 23:01:02

Lecture 2.2.5.1. strlen

Time of First Successful Submission: 2025-09-04 08:44:34

EzLab 2.2.5.1 - String Length (strlen)

Time of First Successful Submission: 2025-09-04 22:49:27

Lecture 2.2.5.2. strcat

Time of First Successful Submission: 2025-09-04 08:46:38

EzLab 2.2.5.2 - String Concatenate (strcat)

Time of First Successful Submission: 2025-09-04 22:50:31

Lecture 2.2.5.3. strcmp

Time of First Successful Submission: 2025-09-04 08:48:27

EzLab 2.2.5.3 - String Compare (strcmp)

Time of First Successful Submission: 2025-09-04 22:51:55

Lecture 2.2.5.4. strcpy

Time of First Successful Submission: 2025-09-04 08:51:04

EzLab 2.2.5.4 - String Copy (strcpy/strncpy)

Time of First Successful Submission: 2025-09-04 22:53:16

Lecture 2.2.5.6. strspn

Time of First Successful Submission: 2025-09-04 08:53:36

Lab 2.2.5.6 - String Highlighter

Time of First Successful Submission: 2025-09-04 22:56:40

P2.2 Level 01 length

Time of First Successful Submission: 2025-09-09 01:04:18

P2.2 Level 03 c-copy

Time of First Successful Submission: 2025-09-09 04:35:21

P2.2 Level 04 c-compare

Time of First Successful Submission: 2025-09-09 04:36:37

P2.2 Level 05 c-up

Time of First Successful Submission: 2025-09-09 04:39:38

P2.2 Level 06 c-bugs

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

P2.2 Level 07 c-debugger

Time of First Successful Submission: 2025-09-09 04:48:08

P2.2 Level 08 c-debugger2

Time of First Successful Submission: 2025-09-09 04:54:23

P2.2 Level 09 c-grind

Time of First Successful Submission: 2025-09-09 05:02:39

Lecture 2.3.1. Stack pointers

Time of First Successful Submission: 2025-09-11 23:30:15

Lab 2.3.1.0 - Print Non-printable Chars

Time of First Successful Submission: 2025-09-12 00:16:16

Lecture 2.3.2.0 Examples Single Value

Time of First Successful Submission: 2025-09-11 23:33:06

Lecture 2.3.2.1. Examples of Ptr to Array

Time of First Successful Submission: 2025-09-11 23:36:19

EzLab 2.3.2.1 - Character Pointers

Time of First Successful Submission: 2025-09-12 00:17:25

EzLab 2.3.2.1 - C-String Pointers

Time of First Successful Submission: 2025-09-12 00:18:29

Lecture 2.3.3.1. strstr video

Time of First Successful Submission: 2025-09-11 23:38:18

EzLab 2.3.3.1 - Find str in str (strstr)

Time of First Successful Submission: 2025-09-12 00:19:42

Lab 2.3.3.1 - Find Word Count

Time of First Successful Submission: 2025-09-12 00:20:50

Lecture 2.3.3.2. strtok video

Time of First Successful Submission: 2025-09-11 23:42:33

EzLab 2.3.3.2 - Get tokens (strtok)

Time of First Successful Submission: 2025-09-12 00:21:59

Lecture 2.3.3.3. strchr video

Time of First Successful Submission: 2025-09-11 23:44:00

Lecture 2.3.3.4. memset

Time of First Successful Submission: 2025-09-11 23:45:15

P2.3 Level 01 Pig Latin

Time of First Successful Submission: 2025-09-17 23:07:07

P2.3 Level 02 Pig Latin

Time of First Successful Submission: 2025-09-17 23:11:23

P2.3 Level 03 Pig Latin

Time of First Successful Submission: 2025-09-17 23:13:17

P2.3 Level 04 Pig Latin

Time of First Successful Submission: 2025-09-17 23:15:42

Lecture 2.4.1.1. struct into

Time of First Successful Submission: 2025-09-20 05:08:01

EzLab 2.4.1.1 - Using a struct

Time of First Successful Submission: 2025-09-20 05:42:30

Lecture 2.4.1.4. string to struct

Time of First Successful Submission: 2025-09-20 05:11:09

EzLab 2.4.1.4 - Struct from string

Time of First Successful Submission: 2025-09-20 05:43:33

Lecture 2.4.1.5. array of struct

Time of First Successful Submission: 2025-09-20 05:13:41

Lab 2.4.1.5 - Songs List

Time of First Successful Submission: 2025-09-20 06:09:46

Lecture 2.4.1.6. enum

Time of First Successful Submission: 2025-09-20 05:16:02

Lecture 2.4.2.1. C preprocessor

Time of First Successful Submission: 2025-09-20 05:19:31

EzLab 2.4.2.1 - C Preprocessor

Time of First Successful Submission: 2025-09-20 06:10:38

Lecture 2.4.2.2. Header files

Time of First Successful Submission: 2025-09-20 05:22:47

Lecture 2.4.2.6. Makefile

Time of First Successful Submission: 2025-09-20 05:27:30

EzLab 2.4.2.6 - Makefiles

Time of First Successful Submission: 2025-09-20 06:19:10

Lab 2.4.2.6 - Make Songs

Time of First Successful Submission: 2025-09-20 06:23:15

Lab 2.4.2.6 - Filter Songs

Time of First Successful Submission: 2025-09-20 06:25:19

Lecture 2.5.1.3. the heap

Time of First Successful Submission: 2025-09-23 02:11:57

Lecture 2.5.1.4. malloc an int

Time of First Successful Submission: 2025-09-23 02:13:48

Lecture 2.5.1.5. create a heap based array

Time of First Successful Submission: 2025-09-23 02:16:52

Lecture 2.5.1.6. free the heap

Time of First Successful Submission: 2025-09-23 02:18:05

EzLab 2.5.1.6 Heap

Time of First Successful Submission: 2025-09-23 22:30:43

Lab 2.5.1.6 - Stack on Heap

Time of First Successful Submission: 2025-09-23 22:33:35

Lecture 2.5.2.1. realloc

Time of First Successful Submission: 2025-09-23 02:19:54

Lecture 2.5.2.2. getline

Time of First Successful Submission: 2025-09-23 02:22:07

Lecture 2.5.2.3. strdup

Time of First Successful Submission: 2025-09-23 02:23:25

Lecture 2.5.2.4. struct malloc

Time of First Successful Submission: 2025-09-23 02:27:53

EzLab 2.5.2.4 Heap Based Array

Time of First Successful Submission: 2025-09-23 22:36:27

Lab 2.5.2.4 - Paging Songs

Time of First Successful Submission: 2025-09-23 22:51:44

P2.5 Level 01 Get Maxxed

Time of First Successful Submission: 2025-09-30 05:39:23

P2.5 Level 02 Load up those items

Time of First Successful Submission: 2025-09-30 05:54:48

P2.5 Level 05 Show me your room

Time of First Successful Submission: 2025-09-30 21:50:42

P2.5 Level 06 Moving Around

Time of First Successful Submission: 2025-09-30 21:54:18

P2.5 Level 07 Getting Items and Player's Inventory

Time of First Successful Submission: 2025-09-30 21:59:14

P2.5 Level 08 Dropping Items and Looking

Time of First Successful Submission: 2025-09-30 22:01:39

Lecture 2.6.1. Double Ptr Local

Time of First Successful Submission: 2025-10-07 02:48:14

Lecture 2.6.1.1. Double Ptr Heap

Time of First Successful Submission: 2025-10-07 02:53:20

Lecture 2.6.1.2. Triple Ptr Local

Time of First Successful Submission: 2025-10-07 02:56:26

Lecture 2.6.2.2. Pass-By-Address

Time of First Successful Submission: 2025-10-07 03:02:13

EzLab 2.6.2.2 Pass By Address

Time of First Successful Submission: 2025-10-07 03:33:11

Lecture 2.6.2.3. PBA - Double Ptrs

Time of First Successful Submission: 2025-10-07 03:04:19

Lecture 2.7.1.2. Array lists

Time of First Successful Submission: 2025-10-07 03:08:40

Lecture 2.7.1.3. Array lists insert and remove

Time of First Successful Submission: 2025-10-07 03:11:32

Lecture 2.7.2.0 Linked List

Time of First Successful Submission: 2025-10-07 03:13:43

Lecture 2.7.2.1. Linked List Insert at End

Time of First Successful Submission: 2025-10-07 03:15:49

Lecture 2.7.2.2. Linked List Insert at

Time of First Successful Submission: 2025-10-07 03:18:26

Lecture 2.7.2.3. Linked List Remove

Time of First Successful Submission: 2025-10-07 03:19:55

Lecture 2.7.2.4. Array list v. Linked List

Time of First Successful Submission: 2025-10-07 03:22:10

Lecture 3.1.1. OO Paradigm

Time of First Successful Submission: 2025-10-07 06:50:35

Lecture 3.1.2.1. Differences

Time of First Successful Submission: 2025-10-07 06:54:17

Lecture 3.1.2.2. Buffer and Files

Time of First Successful Submission: 2025-10-07 06:57:17

Lecture 3.1.3. Classes

Time of First Successful Submission: 2025-10-07 07:02:46

Lecture 3.2.1. Inheritance introduction

Time of First Successful Submission: 2025-10-17 07:22:11

Lecture 3.2.2. Concrete Classes

Time of First Successful Submission: 2025-10-17 07:27:20

Lecture 3.2.2.1. Abstract Classes

Time of First Successful Submission: 2025-10-17 07:31:23

Lecture 3.2.2.2. Working with inherited classes

Time of First Successful Submission: 2025-10-17 07:34:53

EzLab 3.2.2.2 Inheritance

Time of First Successful Submission: 2025-10-17 07:39:05

Lecture 3.2.4. Header and c++ Files

Time of First Successful Submission: 2025-10-17 07:37:24


Intro to Cybersecurity

27 / 183 10527 / 24999


Path Traversal 1

Time of First Successful Submission: 2026-09-06 11:59:02

Path Traversal 2

Time of First Successful Submission: 2026-09-06 12:06:02

CMDi 1

Time of First Successful Submission: 2026-09-06 12:09:52

CMDi 2

Time of First Successful Submission: 2026-09-11 08:38:30

CMDi 3

Time of First Successful Submission: 2026-09-11 08:39:57

CMDi 4

Time of First Successful Submission: 2026-09-11 08:41:39

CMDi 5

Time of First Successful Submission: 2026-09-11 08:43:29

CMDi 6

Time of First Successful Submission: 2026-09-11 08:44:58

Authentication Bypass 1

Time of First Successful Submission: 2026-09-11 08:52:51

Authentication Bypass 2

Time of First Successful Submission: 2026-09-11 08:58:16

SQLi 1

Time of First Successful Submission: 2026-09-11 09:01:10

SQLi 2

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

SQLi 3

Time of First Successful Submission: 2026-09-11 09:08:04

SQLi 4

Time of First Successful Submission: 2026-09-16 01:13:39

SQLi 5

Time of First Successful Submission: 2026-09-16 01:19:50

XSS 1

Time of First Successful Submission: 2026-09-16 01:28:53

XSS 2

Time of First Successful Submission: 2026-09-16 01:32:17

XSS 3

Time of First Successful Submission: 2026-09-16 01:52:00

XSS 4

Time of First Successful Submission: 2026-09-19 00:00:20

XSS 5

Time of First Successful Submission: 2026-09-19 00:05:15

XSS 6

Time of First Successful Submission: 2026-09-19 00:09:19

XSS 7

Time of First Successful Submission: 2026-09-19 00:19:06

CSRF 1

Time of First Successful Submission: 2026-09-19 00:31:26

CSRF 2

Time of First Successful Submission: 2026-09-19 00:43:50

CSRF 3

Time of First Successful Submission: 2026-09-19 01:00:13

CSRF 4

Time of First Successful Submission: 2026-09-19 23:41:05

CSRF 5

Time of First Successful Submission: 2026-09-19 23:43:51


Start Here

5 / 10 45116 / 68472


Using the Terminal

Time of First Successful Submission: 2026-08-21 20:14:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-21 20:16:21

Using the GUI Desktop

Time of First Successful Submission: 2026-08-21 20:19:50

Pasting into the Desktop

Time of First Successful Submission: 2026-08-21 20:22:39

Restarting Challenges

Time of First Successful Submission: 2026-08-21 20:24:14


Linux Luminarium

128 / 128 5225 / 50102


Intro to Commands

Time of First Successful Submission: 2026-08-21 20:34:58

Intro to Arguments

Time of First Successful Submission: 2026-08-21 20:38:37

Command History

Time of First Successful Submission: 2026-08-21 20:40:36

The Root

Time of First Successful Submission: 2026-08-21 20:45:52

Program and absolute paths

Time of First Successful Submission: 2026-08-21 20:47:11

Position thy self

Time of First Successful Submission: 2026-08-21 21:04:37

Position elsewhere

Time of First Successful Submission: 2026-08-21 21:06:31

implicit relative paths, from /

Time of First Successful Submission: 2026-08-21 23:18:59

explicit relative paths, from /

Time of First Successful Submission: 2026-08-21 23:26:23

implicit relative path

Time of First Successful Submission: 2026-08-21 23:28:27

home sweet home

Time of First Successful Submission: 2026-08-21 23:34:26

cat: not the pet, but the command!

Time of First Successful Submission: 2026-08-23 18:08:12

catting absolute paths

Time of First Successful Submission: 2026-08-23 18:08:58

more catting practice

Time of First Successful Submission: 2026-08-23 18:12:00

grepping for a needle in a haystack

Time of First Successful Submission: 2026-08-23 18:14:59

comparing files

Time of First Successful Submission: 2026-08-23 18:17:37

listing files

Time of First Successful Submission: 2026-08-23 18:21:12

touching files

Time of First Successful Submission: 2026-08-23 18:23:30

removing files

Time of First Successful Submission: 2026-08-23 18:25:59

moving files

Time of First Successful Submission: 2026-08-23 18:28:37

copying files

Time of First Successful Submission: 2026-08-23 18:33:37

hidden files

Time of First Successful Submission: 2026-08-23 18:38:24

An Epic Filesystem Quest

Time of First Successful Submission: 2026-08-23 21:03:55

making directories

Time of First Successful Submission: 2026-08-23 21:06:41

finding files

Time of First Successful Submission: 2026-08-23 21:30:23

linking files

Time of First Successful Submission: 2026-08-23 21:39:59

Learning From Documentation

Time of First Successful Submission: 2026-08-24 21:42:23

Learning Complex Usage

Time of First Successful Submission: 2026-08-24 21:44:00

Reading Manuals

Time of First Successful Submission: 2026-08-24 21:47:11

Searching Manuals

Time of First Successful Submission: 2026-08-24 21:51:27

Searching For Manuals

Time of First Successful Submission: 2026-08-24 22:01:55

Helpful Programs

Time of First Successful Submission: 2026-08-24 22:10:03

Help for Builtins

Time of First Successful Submission: 2026-08-24 22:14:49

Matching with *

Time of First Successful Submission: 2026-08-25 07:30:26

Matching with ?

Time of First Successful Submission: 2026-08-25 07:31:08

Matching with []

Time of First Successful Submission: 2026-08-25 07:33:05

Matching paths with []

Time of First Successful Submission: 2026-08-25 07:36:30

Multiple globs

Time of First Successful Submission: 2026-08-25 07:39:16

Mixing globs

Time of First Successful Submission: 2026-08-25 07:40:43

Exclusionary globbing

Time of First Successful Submission: 2026-08-25 07:42:19

Tab completion

Time of First Successful Submission: 2026-08-25 07:44:22

Multiple options for tab completion

Time of First Successful Submission: 2026-08-25 07:47:54

Tab completion on commands

Time of First Successful Submission: 2026-08-25 07:48:29

Redirecting output

Time of First Successful Submission: 2026-08-25 07:51:07

Redirecting more output

Time of First Successful Submission: 2026-08-25 07:52:12

Appending output

Time of First Successful Submission: 2026-08-25 07:53:55

Redirecting errors

Time of First Successful Submission: 2026-08-25 07:55:25

Redirecting input

Time of First Successful Submission: 2026-08-25 07:56:45

Grepping stored results

Time of First Successful Submission: 2026-08-25 07:58:52

Grepping live output

Time of First Successful Submission: 2026-08-25 07:59:38

Grepping errors

Time of First Successful Submission: 2026-08-25 08:12:30

Filtering with grep -v

Time of First Successful Submission: 2026-08-25 08:16:05

Filtering with sed

Time of First Successful Submission: 2026-08-25 08:18:50

Duplicating piped data with tee

Time of First Successful Submission: 2026-08-25 08:56:36

Process substitution for input

Time of First Successful Submission: 2026-08-25 08:36:18

Writing to multiple programs

Time of First Successful Submission: 2026-08-25 08:37:26

Split-piping stderr and stdout

Time of First Successful Submission: 2026-08-25 08:38:38

Named pipes

Time of First Successful Submission: 2026-08-25 08:42:07

Printing Variables

Time of First Successful Submission: 2026-08-25 09:00:21

Setting Variables

Time of First Successful Submission: 2026-08-25 09:01:11

Multi-word Variables

Time of First Successful Submission: 2026-08-25 09:02:17

Exporting Variables

Time of First Successful Submission: 2026-08-25 09:07:03

Printing Exported Variables

Time of First Successful Submission: 2026-08-25 09:07:38

Storing Command Output

Time of First Successful Submission: 2026-08-25 09:09:08

Reading Input

Time of First Successful Submission: 2026-08-25 09:09:49

Reading Files

Time of First Successful Submission: 2026-08-25 09:10:48

Translating characters

Time of First Successful Submission: 2026-08-25 09:18:37

Deleting characters

Time of First Successful Submission: 2026-08-25 09:19:42

Deleting newlines

Time of First Successful Submission: 2026-08-25 09:21:54

Extracting the first lines with head

Time of First Successful Submission: 2026-08-25 09:24:09

Extracting specific sections of text

Time of First Successful Submission: 2026-08-25 09:28:05

Sorting data

Time of First Successful Submission: 2026-08-25 09:31:10

Listing Processes

Time of First Successful Submission: 2026-08-25 20:30:54

Killing Processes

Time of First Successful Submission: 2026-08-25 22:10:17

Interrupting Processes

Time of First Successful Submission: 2026-08-25 22:11:23

Killing Misbehaving Processes

Time of First Successful Submission: 2026-08-25 22:19:20

Suspending Processes

Time of First Successful Submission: 2026-08-25 22:21:01

Resuming Processes

Time of First Successful Submission: 2026-08-25 22:24:37

Backgrounding Processes

Time of First Successful Submission: 2026-08-25 22:36:40

Foregrounding Processes

Time of First Successful Submission: 2026-08-25 22:50:32

Starting Backgrounded Processes

Time of First Successful Submission: 2026-08-25 22:55:33

Process Exit Codes

Time of First Successful Submission: 2026-08-25 22:56:57

Becoming root with su

Time of First Successful Submission: 2026-08-26 00:29:10

Other users with su

Time of First Successful Submission: 2026-08-26 20:15:52

Cracking passwords

Time of First Successful Submission: 2026-08-26 20:20:28

Using sudo

Time of First Successful Submission: 2026-08-26 20:24:00

Changing File Ownership

Time of First Successful Submission: 2026-08-26 20:25:01

Groups and Files

Time of First Successful Submission: 2026-08-26 20:32:23

Fun With Groups Names

Time of First Successful Submission: 2026-08-26 20:35:01

Changing Permissions

Time of First Successful Submission: 2026-08-26 20:37:28

Executable Files

Time of First Successful Submission: 2026-08-26 20:40:13

Permission Tweaking Practice

Time of First Successful Submission: 2026-08-26 20:45:45

Permissions Setting Practice

Time of First Successful Submission: 2026-08-26 21:11:07

The SUID Bit

Time of First Successful Submission: 2026-08-26 21:13:14

Chaining with Semicolons

Time of First Successful Submission: 2026-08-26 21:14:39

Building on Success

Time of First Successful Submission: 2026-08-26 21:15:33

Handling Failure

Time of First Successful Submission: 2026-08-26 21:16:47

Your First Shell Script

Time of First Successful Submission: 2026-08-26 21:18:59

Redirecting Script Output

Time of First Successful Submission: 2026-08-26 21:20:49

Executable Shell Scripts

Time of First Successful Submission: 2026-08-26 21:21:48

Understanding Shebangs

Time of First Successful Submission: 2026-08-26 21:27:00

Scripting with Arguments

Time of First Successful Submission: 2026-08-26 21:31:16

Scripting with Conditionals

Time of First Successful Submission: 2026-08-26 21:33:48

Scripting with Default Cases

Time of First Successful Submission: 2026-08-26 21:41:35

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-08-26 21:53:48

Reading Shell Scripts

Time of First Successful Submission: 2026-08-26 21:55:20

Launching Screen

Time of First Successful Submission: 2026-08-26 21:56:15

Detaching and Attaching

Time of First Successful Submission: 2026-08-26 21:57:04

Finding Sessions

Time of First Successful Submission: 2026-08-26 21:58:10

Switching Windows

Time of First Successful Submission: 2026-08-26 21:58:49

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-08-26 21:59:37

Switching Windows (tmux)

Time of First Successful Submission: 2026-08-26 22:00:15

The PATH Variable

Time of First Successful Submission: 2026-08-26 23:34:23

Setting PATH

Time of First Successful Submission: 2026-08-26 23:35:17

Finding Commands

Time of First Successful Submission: 2026-08-26 23:36:30

Adding Commands

Time of First Successful Submission: 2026-08-26 23:38:32

Hijacking Commands

Time of First Successful Submission: 2026-08-26 23:42:10

Bashrc Backdoor

Time of First Successful Submission: 2026-08-26 23:46:16

Sniffing Input

Time of First Successful Submission: 2026-08-26 23:49:27

Overshared Directories

Time of First Successful Submission: 2026-09-06 10:59:15

Tricky Linking

Time of First Successful Submission: 2026-08-27 01:15:02

Sniffing Process Arguments

Time of First Successful Submission: 2026-08-27 00:50:24

Snooping on Configurations

Time of First Successful Submission: 2026-08-27 00:48:54

The Fork Bomb

Time of First Successful Submission: 2026-08-27 00:31:02

Disk-Space Doomsday

Time of First Successful Submission: 2026-08-27 00:34:42

rm -rf /

Time of First Successful Submission: 2026-08-27 00:41:19

Life after rm -rf /

Time of First Successful Submission: 2026-08-27 00:42:52

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-08-27 00:45:20


Computing 101

132 / 132 409 / 24567


Your First Register

Time of First Successful Submission: 2026-09-22 10:22:29

Your First Syscall

Time of First Successful Submission: 2026-09-22 10:25:42

Exit Codes

Time of First Successful Submission: 2026-09-22 10:27:19

Building Executables

Time of First Successful Submission: 2026-09-22 10:29:28

Moving Between Registers

Time of First Successful Submission: 2026-09-22 10:30:47

Loading From Memory

Time of First Successful Submission: 2026-09-22 10:32:12

More Loading Practice

Time of First Successful Submission: 2026-09-22 10:33:25

Dereferencing Pointers

Time of First Successful Submission: 2026-09-22 10:34:38

Dereferencing Yourself

Time of First Successful Submission: 2026-09-22 10:35:45

Dereferencing with Offsets

Time of First Successful Submission: 2026-09-22 10:36:44

Stored Addresses

Time of First Successful Submission: 2026-09-22 10:38:38

Double Dereference

Time of First Successful Submission: 2026-09-22 10:40:16

The Stack

Time of First Successful Submission: 2026-09-22 10:42:45

Stack Offsets

Time of First Successful Submission: 2026-09-22 10:44:58

Program Arguments on the Stack

Time of First Successful Submission: 2026-09-22 10:48:15

Popping From the Stack

Time of First Successful Submission: 2026-09-22 10:50:10

Negative Numbers

Time of First Successful Submission: 2026-09-22 10:55:23

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-09-22 10:56:46

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-09-22 10:59:06

Encoding Negatives

Time of First Successful Submission: 2026-09-22 11:02:41

Binary and Hex Encoding

Time of First Successful Submission: 2026-09-22 11:04:24

More Hex

Time of First Successful Submission: 2026-09-22 11:08:01

Decoding Hex

Time of First Successful Submission: 2026-09-22 11:09:20

Mixed Conversions

Time of First Successful Submission: 2026-09-22 11:12:28

Disassembling Programs

Time of First Successful Submission: 2026-09-22 11:13:46

Tracing Syscalls

Time of First Successful Submission: 2026-09-22 11:20:35

Starting GDB

Time of First Successful Submission: 2026-09-22 11:24:40

Quitting GDB

Time of First Successful Submission: 2026-09-22 11:27:52

Starting Programs in GDB

Time of First Successful Submission: 2026-09-22 11:29:04

Disassembling in GDB

Time of First Successful Submission: 2026-09-22 11:34:06

Stepping Through Instructions

Time of First Successful Submission: 2026-09-22 11:35:21

Reading Register Values

Time of First Successful Submission: 2026-09-22 11:38:17

Setting Register Values

Time of First Successful Submission: 2026-09-22 11:39:22

Popping Stack Values

Time of First Successful Submission: 2026-09-22 11:42:55

Examining Memory

Time of First Successful Submission: 2026-09-22 11:43:49

Examining Stack Pointers

Time of First Successful Submission: 2026-09-22 11:46:56

Cooperative Debugging

Time of First Successful Submission: 2026-09-22 11:48:57

Running with Arguments

Time of First Successful Submission: 2026-09-22 11:51:44

Redirecting Input in GDB

Time of First Successful Submission: 2026-09-22 11:55:58

Writing Output

Time of First Successful Submission: 2026-09-22 11:59:13

Chaining Syscalls

Time of First Successful Submission: 2026-09-22 12:03:02

Writing Strings

Time of First Successful Submission: 2026-09-22 12:06:35

Reading Data

Time of First Successful Submission: 2026-09-22 12:08:17

Reading Exactly

Time of First Successful Submission: 2026-09-22 12:13:23

Opening Files

Time of First Successful Submission: 2026-09-22 12:15:51

Hardcoding the Filename

Time of First Successful Submission: 2026-09-22 12:24:42

RIP-Relative Strings

Time of First Successful Submission: 2026-09-22 12:29:07

Comparing Values

Time of First Successful Submission: 2026-09-22 12:34:20

Comparing Characters

Time of First Successful Submission: 2026-09-22 12:40:05

Conditional Control Flow

Time of First Successful Submission: 2026-09-22 12:43:12

Comparing Strings

Time of First Successful Submission: 2026-09-22 20:29:40

Reverse the Password

Time of First Successful Submission: 2026-09-22 20:34:48

Conditionals Without Conditionals

Time of First Successful Submission: 2026-09-22 20:43:34

Recognizing Loops

Time of First Successful Submission: 2026-09-22 20:49:09

Writing Loops

Time of First Successful Submission: 2026-09-22 20:55:35

Writing From a Shared Library

Time of First Successful Submission: 2026-09-22 20:58:35

Returning a Value

Time of First Successful Submission: 2026-09-22 21:04:33

Calling Through a Pointer

Time of First Successful Submission: 2026-09-22 21:07:58

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-09-22 21:24:12

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-09-22 21:27:49

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-09-22 21:34:50

Sign Extension

Time of First Successful Submission: 2026-09-22 21:38:17

Little-Endian Bytes

Time of First Successful Submission: 2026-09-22 21:59:04

Qword by Qword

Time of First Successful Submission: 2026-09-22 22:02:32

Dword by Dword

Time of First Successful Submission: 2026-09-22 22:09:03

Word by Word

Time of First Successful Submission: 2026-09-22 22:27:25

Byte by Byte

Time of First Successful Submission: 2026-09-22 22:53:00

Cracking a Struct

Time of First Successful Submission: 2026-09-22 22:59:14

Scrambled Struct

Time of First Successful Submission: 2026-09-22 23:01:22

Reverse the Calculation

Time of First Successful Submission: 2026-09-23 00:14:01

Reverse the Reverse

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

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-09-23 01:19:07

Even or Odd

Time of First Successful Submission: 2026-09-23 01:23:59

Masking Bits

Time of First Successful Submission: 2026-09-23 01:26:48

Lowercase a String

Time of First Successful Submission: 2026-09-23 01:29:42

Uppercase a String

Time of First Successful Submission: 2026-09-30 23:49:55

Swap Case

Time of First Successful Submission: 2026-10-01 00:25:45

Shifting Left

Time of First Successful Submission: 2026-10-01 00:30:44

Shifting Right

Time of First Successful Submission: 2026-10-01 00:41:03

Loops on Data

Time of First Successful Submission: 2026-10-01 00:43:12

Reaching Into the Caller's Frame

Time of First Successful Submission: 2026-10-01 00:49:14

Loading Stale Stack Data

Time of First Successful Submission: 2026-10-01 00:53:45

Stealing Stale Stack Data

Time of First Successful Submission: 2026-10-01 00:59:41

Reserving Your Own Frame

Time of First Successful Submission: 2026-10-01 01:02:54

Using Your Own Frame

Time of First Successful Submission: 2026-10-01 01:04:22

Environment Variables on the Stack

Time of First Successful Submission: 2026-10-01 01:07:20

Aligning the Stack Through the Environment

Time of First Successful Submission: 2026-10-01 01:13:46

Aligning the Stack Through GDB

Time of First Successful Submission: 2026-10-01 01:19:32

Aligning the Stack Through GDB, Generalized

Time of First Successful Submission: 2026-10-01 01:21:25

A Single Digit

Time of First Successful Submission: 2026-10-01 01:27:28

Two Digits

Time of First Successful Submission: 2026-10-01 01:43:36

String to Integer

Time of First Successful Submission: 2026-10-01 01:46:23

Negative Numbers

Time of First Successful Submission: 2026-10-01 01:48:20

Where the Number Ends

Time of First Successful Submission: 2026-10-01 05:12:08

A Whole Program

Time of First Successful Submission: 2026-10-01 05:15:18

A Single Digit, Back to Text

Time of First Successful Submission: 2026-10-01 05:16:51

Divide and Remainder

Time of First Successful Submission: 2026-10-01 05:18:08

Drop the Leading Zero

Time of First Successful Submission: 2026-10-01 05:20:35

Integer to String

Time of First Successful Submission: 2026-10-01 05:23:04

Negative Numbers, Back to Text

Time of First Successful Submission: 2026-10-01 05:25:09

Sum Them All

Time of First Successful Submission: 2026-10-01 05:27:14

Addition

Time of First Successful Submission: 2026-10-01 05:29:57

Subtraction

Time of First Successful Submission: 2026-10-01 05:32:08

Multiplication

Time of First Successful Submission: 2026-10-01 05:35:21

Bitwise Operators

Time of First Successful Submission: 2026-10-01 05:37:21

Unary Operators

Time of First Successful Submission: 2026-10-01 05:48:54

Literal Output

Time of First Successful Submission: 2026-10-02 22:09:00

Newline Escapes

Time of First Successful Submission: 2026-10-02 22:22:08

Escaped Syntax

Time of First Successful Submission: 2026-10-02 22:23:45

Decimal Markers

Time of First Successful Submission: 2026-10-02 22:27:41

Multiple Decimal Markers

Time of First Successful Submission: 2026-10-02 22:32:08

String Markers

Time of First Successful Submission: 2026-10-02 22:33:48

Hex Byte Escapes

Time of First Successful Submission: 2026-10-02 22:36:09

Debugging Programs

Time of First Successful Submission: 2026-10-02 22:38:17

Inspecting Registers

Time of First Successful Submission: 2026-10-02 22:39:43

Examining Memory

Time of First Successful Submission: 2026-10-02 22:42:02

Setting Breakpoints

Time of First Successful Submission: 2026-10-02 22:56:41

GDB Scripting

Time of First Successful Submission: 2026-10-02 23:05:44

Modifying Data

Time of First Successful Submission: 2026-10-02 23:08:17

Modifying Execution

Time of First Successful Submission: 2026-10-02 23:09:39

Broken Functions

Time of First Successful Submission: 2026-10-02 23:11:14

Exit

Time of First Successful Submission: 2026-10-02 23:13:26

Socket

Time of First Successful Submission: 2026-10-02 23:15:46

Bind

Time of First Successful Submission: 2026-10-02 23:17:43

Listen

Time of First Successful Submission: 2026-10-02 23:19:32

Accept

Time of First Successful Submission: 2026-10-02 23:20:24

Static Response

Time of First Successful Submission: 2026-10-02 23:22:17

Dynamic Response

Time of First Successful Submission: 2026-10-02 23:24:19

Iterative GET Server

Time of First Successful Submission: 2026-10-02 23:25:10

Concurrent GET Server

Time of First Successful Submission: 2026-10-02 23:26:07

Concurrent POST Server

Time of First Successful Submission: 2026-10-02 23:33:08

Web Server

Time of First Successful Submission: 2026-10-02 23:34:10


Playing With Programs

65 / 116 5208 / 26582


What's the password?

Time of First Successful Submission: 2026-08-27 21:19:41

... and again!

Time of First Successful Submission: 2026-08-27 21:20:27

Newline Troubles

Time of First Successful Submission: 2026-08-27 21:23:54

Reasoning about files

Time of First Successful Submission: 2026-08-27 21:25:51

Specifying Filenames

Time of First Successful Submission: 2026-08-27 21:27:43

Binary and Hex Encoding

Time of First Successful Submission: 2026-08-28 08:36:13

More Hex

Time of First Successful Submission: 2026-08-28 21:04:09

Decoding Hex

Time of First Successful Submission: 2026-08-28 21:20:16

Decoding Practice

Time of First Successful Submission: 2026-08-28 21:21:18

Encoding Practice

Time of First Successful Submission: 2026-08-28 21:24:38

Hex-encoding ASCII

Time of First Successful Submission: 2026-08-28 21:28:15

Nested Encoding

Time of First Successful Submission: 2026-08-28 21:40:44

Hex-encoding UTF-8

Time of First Successful Submission: 2026-08-28 21:59:20

UTF Mixups

Time of First Successful Submission: 2026-08-30 18:40:23

Modifying Encoded Data

Time of First Successful Submission: 2026-08-31 06:17:01

Decoding Base64

Time of First Successful Submission: 2026-08-31 06:38:57

Encoding Base64

Time of First Successful Submission: 2026-08-31 06:40:25

Dealing with Obfuscation

Time of First Successful Submission: 2026-08-31 06:53:01

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-08-31 06:56:04

Your First HTTP Request

Time of First Successful Submission: 2026-08-31 07:17:12

Reading Flask

Time of First Successful Submission: 2026-08-31 07:42:40

Commented Data

Time of First Successful Submission: 2026-08-31 08:03:18

HTTP Metadata

Time of First Successful Submission: 2026-08-31 08:11:24

HTTP (netcat)

Time of First Successful Submission: 2026-08-31 08:20:09

HTTP Paths (netcat)

Time of First Successful Submission: 2026-08-31 08:25:28

HTTP (curl)

Time of First Successful Submission: 2026-08-31 08:37:42

HTTP (python)

Time of First Successful Submission: 2026-08-31 08:46:04

HTTP Host Header (python)

Time of First Successful Submission: 2026-09-01 04:27:47

HTTP Host Header (curl)

Time of First Successful Submission: 2026-09-01 21:55:44

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-09-01 22:09:49

URL Encoding (netcat)

Time of First Successful Submission: 2026-09-01 22:13:46

HTTP GET Parameters

Time of First Successful Submission: 2026-09-01 22:15:54

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-09-02 21:22:55

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-09-02 21:30:47

HTTP Forms

Time of First Successful Submission: 2026-09-02 21:34:59

HTTP Forms (curl)

Time of First Successful Submission: 2026-09-06 09:32:20

HTTP Forms (netcat)

Time of First Successful Submission: 2026-09-06 09:33:54

HTTP Forms (python)

Time of First Successful Submission: 2026-09-06 09:35:52

HTTP Forms Without Forms

Time of First Successful Submission: 2026-09-06 09:51:30

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-09-06 09:52:51

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-09-06 09:54:07

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-09-06 09:55:37

HTTP Redirects (curl)

Time of First Successful Submission: 2026-09-06 09:56:34

HTTP Redirects (python)

Time of First Successful Submission: 2026-09-06 09:58:01

HTTP Cookies (curl)

Time of First Successful Submission: 2026-09-06 09:59:04

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-09-06 10:01:25

HTTP Cookies (python)

Time of First Successful Submission: 2026-09-06 10:03:16

Server State (python)

Time of First Successful Submission: 2026-09-06 10:04:47

Listening Web

Time of First Successful Submission: 2026-09-06 10:06:35

Speaking Redirects

Time of First Successful Submission: 2026-09-06 10:16:04

JavaScript Redirects

Time of First Successful Submission: 2026-09-06 10:17:43

Including JavaScript

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

HTTP (javascript)

Time of First Successful Submission: 2026-09-06 10:23:52

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-09-06 10:25:05

HTTP Forms (javascript)

Time of First Successful Submission: 2026-09-06 10:26:27

SQL Queries

Time of First Successful Submission: 2026-09-06 10:38:07

Filtering SQL

Time of First Successful Submission: 2026-09-06 10:39:01

Choosing Columns

Time of First Successful Submission: 2026-09-06 10:39:47

Exclusionary Filtering

Time of First Successful Submission: 2026-09-06 10:40:26

Filtering Strings

Time of First Successful Submission: 2026-09-06 10:41:05

Filtering on Expressions

Time of First Successful Submission: 2026-09-06 10:41:50

SELECTing Expressions

Time of First Successful Submission: 2026-09-06 10:48:10

Composite Conditions

Time of First Successful Submission: 2026-09-06 10:49:53

Reaching Your LIMITs

Time of First Successful Submission: 2026-09-06 10:50:38

Querying Metadata

Time of First Successful Submission: 2026-09-06 10:52:12


DSU Cyber Camps

5 / 104 47703 / 68894


Using the Terminal

Time of First Successful Submission: 2026-08-21 20:14:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-21 20:16:21

Using the GUI Desktop

Time of First Successful Submission: 2026-08-21 20:19:50

Pasting into the Desktop

Time of First Successful Submission: 2026-08-21 20:22:39

Restarting Challenges

Time of First Successful Submission: 2026-08-21 20:24:14


GCA CTF

5 / 104 47703 / 68894


Using the Terminal

Time of First Successful Submission: 2026-08-21 20:14:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-21 20:16:21

Using the GUI Desktop

Time of First Successful Submission: 2026-08-21 20:19:50

Pasting into the Desktop

Time of First Successful Submission: 2026-08-21 20:22:39

Restarting Challenges

Time of First Successful Submission: 2026-08-21 20:24:14