hacking101

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Getting Started

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Using the VSCode Workspace

Time of First Successful Submission: 2025-04-13 14:08:22

Using the GUI Desktop

Time of First Successful Submission: 2025-04-13 14:09:10

Pasting into the Desktop

Time of First Successful Submission: 2025-04-13 14:09:58

Restarting Challenges

Time of First Successful Submission: 2025-04-13 14:11:33

Challenge Programs

Time of First Successful Submission: 2025-04-13 14:14:50

The Flag File

Time of First Successful Submission: 2025-04-13 14:17:40

Using Practice Mode

Time of First Successful Submission: 2025-04-13 14:19:48

Persistent Home Directories - One

Time of First Successful Submission: 2025-04-13 14:23:23

Persistent Home Directories - Two

Time of First Successful Submission: 2025-04-13 14:23:59

Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2025-03-23 14:23:06

Intro to Arguments

Time of First Successful Submission: 2025-03-23 14:25:26

The Root

Time of First Successful Submission: 2025-03-23 14:54:06

Program and absolute paths

Time of First Successful Submission: 2025-03-23 14:55:11

Position thy self

Time of First Successful Submission: 2025-03-23 14:56:52

Position elsewhere

Time of First Successful Submission: 2025-03-23 14:58:41

Position yet elsewhere

Time of First Successful Submission: 2025-03-23 14:59:34

implicit relative paths, from /

Time of First Successful Submission: 2025-03-23 15:01:44

explicit relative paths, from /

Time of First Successful Submission: 2025-03-23 15:03:17

implicit relative path

Time of First Successful Submission: 2025-03-23 15:04:46

home sweet home

Time of First Successful Submission: 2025-03-23 15:07:43

cat: not the pet, but the command!

Time of First Successful Submission: 2025-03-23 15:40:12

catting absolute paths

Time of First Successful Submission: 2025-03-23 15:41:02

more catting practice

Time of First Successful Submission: 2025-03-23 15:42:12

grepping for a needle in a haystack

Time of First Successful Submission: 2025-03-23 15:46:06

listing files

Time of First Successful Submission: 2025-03-23 15:47:19

touching files

Time of First Successful Submission: 2025-03-23 15:48:30

removing files

Time of First Successful Submission: 2025-03-23 15:49:42

hidden files

Time of First Successful Submission: 2025-03-23 15:50:40

An Epic Filesystem Quest

Time of First Successful Submission: 2025-03-23 15:57:12

making directories

Time of First Successful Submission: 2025-03-23 16:17:37

finding files

Time of First Successful Submission: 2025-03-23 16:20:30

linking files

Time of First Successful Submission: 2025-03-23 16:23:51

Learning From Documentation

Time of First Successful Submission: 2025-03-24 21:45:01

Learning Complex Usage

Time of First Successful Submission: 2025-03-24 21:46:48

Reading Manuals

Time of First Successful Submission: 2025-03-24 21:49:59

Searching Manuals

Time of First Successful Submission: 2025-03-24 21:51:21

Searching For Manuals

Time of First Successful Submission: 2025-03-24 21:58:42

Helpful Programs

Time of First Successful Submission: 2025-03-24 22:00:38

Help for Builtins

Time of First Successful Submission: 2025-03-24 22:09:20

Matching with *

Time of First Successful Submission: 2025-03-26 21:45:02

Matching with ?

Time of First Successful Submission: 2025-03-26 21:46:28

Matching with []

Time of First Successful Submission: 2025-03-26 21:48:37

Matching paths with []

Time of First Successful Submission: 2025-03-26 21:50:11

Mixing globs

Time of First Successful Submission: 2025-03-26 21:56:11

Exclusionary globbing

Time of First Successful Submission: 2025-03-26 21:58:33

Redirecting output

Time of First Successful Submission: 2025-03-26 22:16:58

Redirecting more output

Time of First Successful Submission: 2025-03-26 22:19:56

Appending output

Time of First Successful Submission: 2025-03-26 22:21:44

Redirecting errors

Time of First Successful Submission: 2025-03-26 22:24:40

Redirecting input

Time of First Successful Submission: 2025-03-26 22:25:55

Grepping stored results

Time of First Successful Submission: 2025-03-26 22:27:30

Grepping live output

Time of First Successful Submission: 2025-03-26 22:28:29

Grepping errors

Time of First Successful Submission: 2025-03-26 22:41:58

Duplicating piped data with tee

Time of First Successful Submission: 2025-03-26 22:46:56

Writing to multiple programs

Time of First Successful Submission: 2025-03-28 21:21:49

Split-piping stderr and stdout

Time of First Successful Submission: 2025-03-28 21:32:32

Printing Variables

Time of First Successful Submission: 2025-03-28 21:36:11

Setting Variables

Time of First Successful Submission: 2025-03-28 21:37:41

Multi-word Variables

Time of First Successful Submission: 2025-03-28 21:39:06

Exporting Variables

Time of First Successful Submission: 2025-03-28 21:41:43

Printing Exported Variables

Time of First Successful Submission: 2025-03-28 21:42:45

Storing Command Output

Time of First Successful Submission: 2025-03-28 22:00:02

Reading Input

Time of First Successful Submission: 2025-03-28 22:02:31

Reading Files

Time of First Successful Submission: 2025-03-28 22:04:46

Listing Processes

Time of First Successful Submission: 2025-03-28 22:12:39

Killing Processes

Time of First Successful Submission: 2025-03-28 22:14:32

Interrupting Processes

Time of First Successful Submission: 2025-03-28 22:15:27

Suspending Processes

Time of First Successful Submission: 2025-03-28 22:16:59

Resuming Processes

Time of First Successful Submission: 2025-03-28 22:17:55

Backgrounding Processes

Time of First Successful Submission: 2025-03-28 22:21:26

Foregrounding Processes

Time of First Successful Submission: 2025-03-28 22:23:05

Starting Backgrounded Processes

Time of First Successful Submission: 2025-03-28 22:24:11

Process Exit Codes

Time of First Successful Submission: 2025-03-28 22:26:06

Changing File Ownership

Time of First Successful Submission: 2025-03-28 22:54:55

Groups and Files

Time of First Successful Submission: 2025-03-28 22:58:44

Fun With Groups Names

Time of First Successful Submission: 2025-03-28 22:59:59

Changing Permissions

Time of First Successful Submission: 2025-03-29 11:31:54

Executable Files

Time of First Successful Submission: 2025-03-29 11:40:18

Permission Tweaking Practice

Time of First Successful Submission: 2025-03-29 11:53:23

Permissions Setting Practice

Time of First Successful Submission: 2025-03-29 12:03:57

The SUID Bit

Time of First Successful Submission: 2025-03-29 12:06:43

Becoming root with su

Time of First Successful Submission: 2025-03-29 12:15:16

Other users with su

Time of First Successful Submission: 2025-03-29 12:16:17

Cracking passwords

Time of First Successful Submission: 2025-03-29 12:22:27

Using sudo

Time of First Successful Submission: 2025-03-29 12:30:07

Chaining with Semicolons

Time of First Successful Submission: 2025-03-29 16:06:17

Your First Shell Script

Time of First Successful Submission: 2025-03-29 16:11:16

Redirecting Script Output

Time of First Successful Submission: 2025-03-29 16:20:06

Executable Shell Scripts

Time of First Successful Submission: 2025-03-29 16:22:17

The PATH Variable

Time of First Successful Submission: 2025-03-29 16:32:01

Setting PATH

Time of First Successful Submission: 2025-03-29 16:35:32

Adding Commands

Time of First Successful Submission: 2025-03-29 16:42:26

Hijacking Commands

Time of First Successful Submission: 2025-03-29 16:48:39

Computing 101

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Your First Register

Time of First Successful Submission: 2025-03-29 21:57:26

Your First Syscall

Time of First Successful Submission: 2025-03-29 21:59:56

Exit Codes

Time of First Successful Submission: 2025-03-29 22:04:51

Building Executables

Time of First Successful Submission: 2025-03-29 22:13:08

Moving Between Registers

Time of First Successful Submission: 2025-03-29 22:28:17

Tracing Syscalls

Time of First Successful Submission: 2025-03-29 23:01:55

Starting GDB

Time of First Successful Submission: 2025-03-29 23:03:38

Starting Programs in GDB

Time of First Successful Submission: 2025-03-29 23:04:59

Loading From Memory

Time of First Successful Submission: 2025-03-30 12:16:39

More Loading Practice

Time of First Successful Submission: 2025-03-30 12:17:31

Dereferencing Pointers

Time of First Successful Submission: 2025-03-30 12:27:55

Dereferencing Yourself

Time of First Successful Submission: 2025-03-30 12:29:54

Dereferencing with Offsets

Time of First Successful Submission: 2025-03-30 12:32:00

Stored Addresses

Time of First Successful Submission: 2025-03-30 12:34:41

Double Dereference

Time of First Successful Submission: 2025-03-30 12:41:05

Triple Dereference

Time of First Successful Submission: 2025-03-30 12:42:20

Writing Output

Time of First Successful Submission: 2025-03-30 13:26:29

Chaining Syscalls

Time of First Successful Submission: 2025-03-30 13:28:06

Writing Strings

Time of First Successful Submission: 2025-03-30 13:29:22

Reading Data

Time of First Successful Submission: 2025-03-30 13:34:11

set-register

Time of First Successful Submission: 2025-03-30 19:51:51

set-multiple-registers

Time of First Successful Submission: 2025-03-30 19:59:59

add-to-register

Time of First Successful Submission: 2025-03-30 20:02:11

linear-equation-registers

Time of First Successful Submission: 2025-03-30 20:06:00

integer-division

Time of First Successful Submission: 2025-03-30 20:10:46

modulo-operation

Time of First Successful Submission: 2025-03-30 20:12:48

set-upper-byte

Time of First Successful Submission: 2025-03-30 20:15:02

efficient-modulo

Time of First Successful Submission: 2025-03-30 20:31:33

byte-extraction

Time of First Successful Submission: 2025-03-31 20:44:15

bitwise-and

Time of First Successful Submission: 2025-03-31 20:49:10

check-even

Time of First Successful Submission: 2025-03-31 20:54:07

memory-read

Time of First Successful Submission: 2025-03-31 20:57:21

memory-write

Time of First Successful Submission: 2025-03-31 20:58:02

memory-increment

Time of First Successful Submission: 2025-03-31 21:02:36

byte-access

Time of First Successful Submission: 2025-03-31 21:06:38

memory-size-access

Time of First Successful Submission: 2025-03-31 21:09:18

little-endian-write

Time of First Successful Submission: 2025-03-31 21:19:28

memory-sum

Time of First Successful Submission: 2025-03-31 21:23:47

stack-subtraction

Time of First Successful Submission: 2025-03-31 21:26:07

swap-stack-values

Time of First Successful Submission: 2025-03-31 21:28:05

average-stack-values

Time of First Successful Submission: 2025-03-31 21:34:21

absolute-jump

Time of First Successful Submission: 2025-04-03 21:04:49

relative-jump

Time of First Successful Submission: 2025-04-03 21:30:40

jump-trampoline

Time of First Successful Submission: 2025-04-05 14:10:05

conditional-jump

Time of First Successful Submission: 2025-04-06 12:58:02

indirect-jump

Time of First Successful Submission: 2025-04-06 17:11:33

average-loop

Time of First Successful Submission: 2025-04-06 20:49:50

count-non-zero

Time of First Successful Submission: 2025-04-06 20:49:20

string-lower

Time of First Successful Submission: 2025-04-07 20:06:58

most-common-byte

Time of First Successful Submission: 2025-04-09 21:57:44

level1

Time of First Successful Submission: 2025-04-12 14:08:08

level2

Time of First Successful Submission: 2025-04-12 14:11:18

level3

Time of First Successful Submission: 2025-04-12 15:25:25

level4

Time of First Successful Submission: 2025-04-12 15:43:30

level5

Time of First Successful Submission: 2025-04-12 16:57:51

level6

Time of First Successful Submission: 2025-04-13 13:24:17

level7

Time of First Successful Submission: 2025-04-13 13:26:37

level8

Time of First Successful Submission: 2025-04-13 14:03:32

Exit

Time of First Successful Submission: 2025-04-19 12:33:56

Socket

Time of First Successful Submission: 2025-04-19 12:53:25

Bind

Time of First Successful Submission: 2025-04-20 12:07:05

Listen

Time of First Successful Submission: 2025-04-20 12:24:28

Accept

Time of First Successful Submission: 2025-04-20 12:40:54

Static Response

Time of First Successful Submission: 2025-04-20 13:45:33

Dynamic Response

Time of First Successful Submission: 2025-04-20 14:22:01

Iterative GET Server

Time of First Successful Submission: 2025-04-20 14:33:13

Concurrent GET Server

Time of First Successful Submission: 2025-04-20 14:47:46

Concurrent POST Server

Time of First Successful Submission: 2025-04-20 16:51:34

Web Server

Time of First Successful Submission: 2025-04-20 16:52:44

Playing With Programs

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What's the password?

Time of First Successful Submission: 2025-04-21 12:31:55

... and again!

Time of First Successful Submission: 2025-04-21 12:32:48

Newline Troubles

Time of First Successful Submission: 2025-04-21 12:36:08

Reasoning about files

Time of First Successful Submission: 2025-04-21 12:39:51

Specifying Filenames

Time of First Successful Submission: 2025-04-21 12:40:49

Binary and Hex Encoding

Time of First Successful Submission: 2025-04-21 12:52:51

More Hex

Time of First Successful Submission: 2025-04-21 13:23:20

Decoding Hex

Time of First Successful Submission: 2025-04-21 13:53:18

Decoding Practice

Time of First Successful Submission: 2025-04-21 13:58:16

Encoding Practice

Time of First Successful Submission: 2025-04-21 14:12:22

Hex-encoding ASCII

Time of First Successful Submission: 2025-04-21 14:23:07

Nested Encoding

Time of First Successful Submission: 2025-04-21 14:25:19

Hex-encoding UTF-8

Time of First Successful Submission: 2025-04-21 14:30:37

UTF Mixups

Time of First Successful Submission: 2025-04-21 14:36:44

Modifying Encoded Data

Time of First Successful Submission: 2025-04-21 14:41:59

Decoding Base64

Time of First Successful Submission: 2025-04-21 14:49:19

Encoding Base64

Time of First Successful Submission: 2025-04-21 14:55:30

Dealing with Obfuscation

Time of First Successful Submission: 2025-04-21 15:12:14

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-04-21 15:27:34