reizbar

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Getting Started

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Using the VSCode Workspace

Time of First Successful Submission: 2024-05-28 16:31:55

Using the GUI Desktop

Time of First Successful Submission: 2025-03-23 06:27:37

Pasting into the Desktop

Time of First Successful Submission: 2025-03-23 06:29:31

Restarting Challenges

Time of First Successful Submission: 2025-03-23 06:32:27

Getting Help

Time of First Successful Submission: 2025-03-23 06:37:00

Challenge Programs

Time of First Successful Submission: 2025-03-23 06:40:17

The Flag File

Time of First Successful Submission: 2025-03-23 06:50:36

Using Practice Mode

Time of First Successful Submission: 2025-03-23 06:54:38

Persistent Home Directories - One

Time of First Successful Submission: 2025-03-23 07:01:04

Persistent Home Directories - Two

Time of First Successful Submission: 2025-03-23 07:02:46

Linux Luminarium

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Intro to Commands

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

Intro to Arguments

Time of First Successful Submission: 2025-03-23 07:07:52

The Root

Time of First Successful Submission: 2025-03-23 07:11:50

Program and absolute paths

Time of First Successful Submission: 2025-03-23 07:13:05

Position thy self

Time of First Successful Submission: 2025-03-23 07:14:09

Position elsewhere

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

Position yet elsewhere

Time of First Successful Submission: 2025-03-23 07:15:58

implicit relative paths, from /

Time of First Successful Submission: 2025-03-23 07:17:14

explicit relative paths, from /

Time of First Successful Submission: 2025-03-23 07:18:01

implicit relative path

Time of First Successful Submission: 2025-03-23 07:18:32

home sweet home

Time of First Successful Submission: 2025-03-23 07:21:30

cat: not the pet, but the command!

Time of First Successful Submission: 2025-03-23 07:22:57

catting absolute paths

Time of First Successful Submission: 2025-03-23 07:27:48

more catting practice

Time of First Successful Submission: 2025-03-23 07:28:31

grepping for a needle in a haystack

Time of First Successful Submission: 2025-03-23 07:29:29

listing files

Time of First Successful Submission: 2025-03-23 07:30:26

touching files

Time of First Successful Submission: 2025-03-23 07:31:19

removing files

Time of First Successful Submission: 2025-03-23 07:32:28

hidden files

Time of First Successful Submission: 2025-03-23 07:33:12

An Epic Filesystem Quest

Time of First Successful Submission: 2025-03-23 07:38:32

making directories

Time of First Successful Submission: 2025-03-23 07:39:19

finding files

Time of First Successful Submission: 2025-03-23 07:46:21

linking files

Time of First Successful Submission: 2025-03-23 07:47:37

Learning From Documentation

Time of First Successful Submission: 2025-03-23 08:14:14

Learning Complex Usage

Time of First Successful Submission: 2025-03-23 08:15:30

Reading Manuals

Time of First Successful Submission: 2025-03-23 08:16:35

Searching Manuals

Time of First Successful Submission: 2025-03-23 08:27:14

Searching For Manuals

Time of First Successful Submission: 2025-03-23 08:28:30

Helpful Programs

Time of First Successful Submission: 2025-03-23 08:30:07

Help for Builtins

Time of First Successful Submission: 2025-03-23 08:40:02

Matching with *

Time of First Successful Submission: 2025-03-23 08:42:56

Matching with ?

Time of First Successful Submission: 2025-03-23 08:43:45

Matching with []

Time of First Successful Submission: 2025-03-23 08:45:20

Matching paths with []

Time of First Successful Submission: 2025-03-23 08:46:20

Mixing globs

Time of First Successful Submission: 2025-03-23 08:50:56

Exclusionary globbing

Time of First Successful Submission: 2025-03-23 08:52:04

Redirecting output

Time of First Successful Submission: 2025-03-23 14:55:27

Redirecting more output

Time of First Successful Submission: 2025-03-23 14:57:02

Appending output

Time of First Successful Submission: 2025-03-23 14:58:13

Redirecting errors

Time of First Successful Submission: 2025-03-23 14:59:22

Redirecting input

Time of First Successful Submission: 2025-03-23 15:02:21

Grepping stored results

Time of First Successful Submission: 2025-03-23 15:04:38

Grepping live output

Time of First Successful Submission: 2025-03-23 15:05:11

Grepping errors

Time of First Successful Submission: 2025-03-23 15:05:50

Duplicating piped data with tee

Time of First Successful Submission: 2025-03-23 15:08:14

Writing to multiple programs

Time of First Successful Submission: 2025-03-23 15:16:14

Split-piping stderr and stdout

Time of First Successful Submission: 2025-03-23 15:17:59

Printing Variables

Time of First Successful Submission: 2025-03-23 17:24:56

Setting Variables

Time of First Successful Submission: 2025-03-23 17:25:57

Multi-word Variables

Time of First Successful Submission: 2025-03-23 17:26:48

Exporting Variables

Time of First Successful Submission: 2025-03-24 05:28:16

Printing Exported Variables

Time of First Successful Submission: 2025-03-24 05:29:10

Storing Command Output

Time of First Successful Submission: 2025-03-24 05:30:37

Reading Input

Time of First Successful Submission: 2025-03-24 05:31:58

Reading Files

Time of First Successful Submission: 2025-03-24 05:34:07

Listing Processes

Time of First Successful Submission: 2025-03-24 05:44:20

Killing Processes

Time of First Successful Submission: 2025-03-24 05:46:16

Interrupting Processes

Time of First Successful Submission: 2025-03-24 05:46:55

Suspending Processes

Time of First Successful Submission: 2025-03-24 05:47:46

Resuming Processes

Time of First Successful Submission: 2025-03-24 05:49:00

Backgrounding Processes

Time of First Successful Submission: 2025-03-24 05:50:59

Foregrounding Processes

Time of First Successful Submission: 2025-03-24 05:55:26

Starting Backgrounded Processes

Time of First Successful Submission: 2025-03-24 05:56:11

Process Exit Codes

Time of First Successful Submission: 2025-03-24 05:57:48

Changing File Ownership

Time of First Successful Submission: 2025-03-24 06:05:11

Groups and Files

Time of First Successful Submission: 2025-03-24 06:09:43

Fun With Groups Names

Time of First Successful Submission: 2025-03-24 06:15:28

Changing Permissions

Time of First Successful Submission: 2025-03-24 06:19:42

Executable Files

Time of First Successful Submission: 2025-03-24 06:21:27

Permission Tweaking Practice

Time of First Successful Submission: 2025-03-24 06:24:43

Permissions Setting Practice

Time of First Successful Submission: 2025-03-24 06:30:10

The SUID Bit

Time of First Successful Submission: 2025-03-24 06:33:58

Becoming root with su

Time of First Successful Submission: 2025-03-24 06:55:37

Other users with su

Time of First Successful Submission: 2025-03-24 10:25:52

Cracking passwords

Time of First Successful Submission: 2025-03-24 10:30:34

Using sudo

Time of First Successful Submission: 2025-03-24 10:34:29

Chaining with Semicolons

Time of First Successful Submission: 2025-03-24 10:36:33

Your First Shell Script

Time of First Successful Submission: 2025-03-24 10:39:09

Redirecting Script Output

Time of First Successful Submission: 2025-03-24 10:40:58

Executable Shell Scripts

Time of First Successful Submission: 2025-03-24 10:42:25

The PATH Variable

Time of First Successful Submission: 2025-03-24 10:45:29

Setting PATH

Time of First Successful Submission: 2025-03-24 10:47:28

Adding Commands

Time of First Successful Submission: 2025-03-24 10:50:23

Hijacking Commands

Time of First Successful Submission: 2025-03-24 10:53:16

Computing 101

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Your First Register

Time of First Successful Submission: 2025-03-24 11:06:12

Your First Syscall

Time of First Successful Submission: 2025-03-24 11:07:43

Exit Codes

Time of First Successful Submission: 2025-03-24 11:13:17

Building Executables

Time of First Successful Submission: 2025-03-24 11:18:13

Moving Between Registers

Time of First Successful Submission: 2025-03-24 11:20:19

Tracing Syscalls

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

Starting GDB

Time of First Successful Submission: 2025-03-24 11:25:22

Starting Programs in GDB

Time of First Successful Submission: 2025-03-24 11:26:22

Loading From Memory

Time of First Successful Submission: 2025-03-24 12:38:04

More Loading Practice

Time of First Successful Submission: 2025-03-24 12:39:12

Dereferencing Pointers

Time of First Successful Submission: 2025-03-24 12:42:38

Dereferencing Yourself

Time of First Successful Submission: 2025-03-24 12:44:22

Dereferencing with Offsets

Time of First Successful Submission: 2025-03-24 12:45:49

Stored Addresses

Time of First Successful Submission: 2025-03-24 12:48:23

Double Dereference

Time of First Successful Submission: 2025-03-24 12:50:02

Triple Dereference

Time of First Successful Submission: 2025-03-24 12:51:04

Writing Output

Time of First Successful Submission: 2025-03-24 13:10:30

Chaining Syscalls

Time of First Successful Submission: 2025-03-24 13:12:25

Writing Strings

Time of First Successful Submission: 2025-03-24 13:13:30

Reading Data

Time of First Successful Submission: 2025-03-24 13:19:27

set-register

Time of First Successful Submission: 2025-03-24 16:32:57

set-multiple-registers

Time of First Successful Submission: 2025-03-24 16:37:02

add-to-register

Time of First Successful Submission: 2025-03-24 16:38:37

linear-equation-registers

Time of First Successful Submission: 2025-03-24 19:25:09

integer-division

Time of First Successful Submission: 2025-03-24 19:27:52

modulo-operation

Time of First Successful Submission: 2025-03-24 19:29:15

set-upper-byte

Time of First Successful Submission: 2025-03-24 19:31:09

efficient-modulo

Time of First Successful Submission: 2025-03-24 19:40:49

byte-extraction

Time of First Successful Submission: 2025-03-24 19:49:06

bitwise-and

Time of First Successful Submission: 2025-03-24 19:50:39

check-even

Time of First Successful Submission: 2025-03-24 19:54:57

memory-read

Time of First Successful Submission: 2025-03-24 20:01:15

memory-write

Time of First Successful Submission: 2025-03-24 20:02:33

memory-increment

Time of First Successful Submission: 2025-03-24 20:04:39

byte-access

Time of First Successful Submission: 2025-03-24 20:06:31

memory-size-access

Time of First Successful Submission: 2025-03-25 05:50:30

little-endian-write

Time of First Successful Submission: 2025-03-25 05:55:41

memory-sum

Time of First Successful Submission: 2025-03-25 05:57:53

stack-subtraction

Time of First Successful Submission: 2025-03-25 05:59:56

swap-stack-values

Time of First Successful Submission: 2025-03-25 06:01:38

average-stack-values

Time of First Successful Submission: 2025-03-25 06:05:03

absolute-jump

Time of First Successful Submission: 2025-03-25 06:07:07

relative-jump

Time of First Successful Submission: 2025-03-25 06:38:29

jump-trampoline

Time of First Successful Submission: 2025-03-25 07:06:14

conditional-jump

Time of First Successful Submission: 2025-03-25 11:29:37

indirect-jump

Time of First Successful Submission: 2025-03-25 15:44:00

average-loop

Time of First Successful Submission: 2025-03-25 16:05:26

count-non-zero

Time of First Successful Submission: 2025-03-25 16:31:37

string-lower

Time of First Successful Submission: 2025-03-25 20:38:36

most-common-byte

Time of First Successful Submission: 2025-03-27 07:16:44

level1

Time of First Successful Submission: 2025-03-27 08:23:04

level2

Time of First Successful Submission: 2025-03-27 08:25:10

level3

Time of First Successful Submission: 2025-03-27 09:10:28

level4

Time of First Successful Submission: 2025-03-27 12:41:50

level5

Time of First Successful Submission: 2025-03-27 12:51:12

level6

Time of First Successful Submission: 2025-03-27 12:57:58

level7

Time of First Successful Submission: 2025-03-27 12:59:36

level8

Time of First Successful Submission: 2025-03-27 13:13:59

Exit

Time of First Successful Submission: 2025-03-27 13:43:25

Socket

Time of First Successful Submission: 2025-03-27 14:17:36

Bind

Time of First Successful Submission: 2025-03-27 16:13:47

Listen

Time of First Successful Submission: 2025-03-27 17:19:50

Accept

Time of First Successful Submission: 2025-03-27 18:06:57

Static Response

Time of First Successful Submission: 2025-03-27 19:34:38

Dynamic Response

Time of First Successful Submission: 2025-03-30 14:34:01

Iterative GET Server

Time of First Successful Submission: 2025-03-30 14:36:18

Concurrent GET Server

Time of First Successful Submission: 2025-03-30 14:37:47

Concurrent POST Server

Time of First Successful Submission: 2025-03-30 14:44:27

Web Server

Time of First Successful Submission: 2025-03-30 14:45:27

Playing With Programs

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What's the password?

Time of First Successful Submission: 2025-03-30 15:03:22

... and again!

Time of First Successful Submission: 2025-03-30 15:04:16

Newline Troubles

Time of First Successful Submission: 2025-03-30 15:06:59

Reasoning about files

Time of First Successful Submission: 2025-03-30 15:08:37

Specifying Filenames

Time of First Successful Submission: 2025-03-30 15:10:13

Binary and Hex Encoding

Time of First Successful Submission: 2025-03-30 15:19:10

More Hex

Time of First Successful Submission: 2025-03-30 15:21:38

Decoding Hex

Time of First Successful Submission: 2025-03-30 15:25:27

Decoding Practice

Time of First Successful Submission: 2025-03-30 15:28:49

Encoding Practice

Time of First Successful Submission: 2025-03-30 15:35:55

Hex-encoding ASCII

Time of First Successful Submission: 2025-03-30 15:56:59

Nested Encoding

Time of First Successful Submission: 2025-03-30 16:18:06

Hex-encoding UTF-8

Time of First Successful Submission: 2025-03-30 16:30:19

UTF Mixups

Time of First Successful Submission: 2025-03-30 19:31:10

Modifying Encoded Data

Time of First Successful Submission: 2025-03-31 09:35:42

Decoding Base64

Time of First Successful Submission: 2025-03-31 09:38:10

Encoding Base64

Time of First Successful Submission: 2025-03-31 09:40:14

Dealing with Obfuscation

Time of First Successful Submission: 2025-03-31 09:43:31

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-03-31 15:32:17

Your First HTTP Request

Time of First Successful Submission: 2025-03-31 15:39:17

Reading Flask

Time of First Successful Submission: 2025-03-31 15:40:59

Commented Data

Time of First Successful Submission: 2025-03-31 15:42:51

HTTP Metadata

Time of First Successful Submission: 2025-03-31 15:44:34

HTTP (netcat)

Time of First Successful Submission: 2025-03-31 16:15:47

HTTP Paths (netcat)

Time of First Successful Submission: 2025-03-31 16:25:01

HTTP (curl)

Time of First Successful Submission: 2025-03-31 16:27:32

HTTP (python)

Time of First Successful Submission: 2025-03-31 16:33:25

HTTP Host Header (python)

Time of First Successful Submission: 2025-03-31 16:42:23

HTTP Host Header (curl)

Time of First Successful Submission: 2025-03-31 16:43:59

HTTP Host Header (netcat)

Time of First Successful Submission: 2025-03-31 16:47:06

URL Encoding (netcat)

Time of First Successful Submission: 2025-03-31 16:50:40

HTTP GET Parameters

Time of First Successful Submission: 2025-03-31 16:53:14

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2025-03-31 16:56:52

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2025-03-31 17:00:52

HTTP Forms

Time of First Successful Submission: 2025-03-31 17:09:38

HTTP Forms (curl)

Time of First Successful Submission: 2025-03-31 17:38:49

HTTP Forms (netcat)

Time of First Successful Submission: 2025-03-31 17:48:58

HTTP Forms (python)

Time of First Successful Submission: 2025-03-31 19:17:44

HTTP Forms Without Forms

Time of First Successful Submission: 2025-03-31 19:29:14

Multiple Form Fields (curl)

Time of First Successful Submission: 2025-03-31 19:31:52

Multiple Form Fields (netcat)

Time of First Successful Submission: 2025-03-31 19:36:50

HTTP Redirects (netcat)

Time of First Successful Submission: 2025-03-31 19:42:06

HTTP Redirects (curl)

Time of First Successful Submission: 2025-03-31 19:45:05

HTTP Redirects (python)

Time of First Successful Submission: 2025-03-31 19:48:05

HTTP Cookies (curl)

Time of First Successful Submission: 2025-03-31 19:57:04

HTTP Cookies (netcat)

Time of First Successful Submission: 2025-04-01 18:25:18

HTTP Cookies (python)

Time of First Successful Submission: 2025-04-01 18:30:25

Server State (python)

Time of First Successful Submission: 2025-04-01 18:39:25

Listening Web

Time of First Successful Submission: 2025-04-01 18:43:43

Speaking Redirects

Time of First Successful Submission: 2025-04-01 19:39:40

JavaScript Redirects

Time of First Successful Submission: 2025-04-01 20:10:47