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1 / 202 22679 / 22794


Triple Dereference

Time of First Successful Submission: 2026-02-12 15:57:11


Intro to Programming Languages

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Lab 1.1 - Start Terminal

Time of First Successful Submission: 2026-02-17 04:24:59

Commands

Time of First Successful Submission: 2026-02-05 14:16:17

Command Arguments

Time of First Successful Submission: 2026-02-05 14:19:26

Command History

Time of First Successful Submission: 2026-02-05 14:20:41

The Root Path

Time of First Successful Submission: 2026-02-05 14:26:04

Absolute Paths

Time of First Successful Submission: 2026-02-05 14:27:05

Changing position

Time of First Successful Submission: 2026-02-05 14:30:21

Changing to an Absolute Path

Time of First Successful Submission: 2026-02-05 14:33:33

Relative Paths

Time of First Successful Submission: 2026-02-05 14:36:33

Cat

Time of First Successful Submission: 2026-02-05 16:10:12

Ls

Time of First Successful Submission: 2026-02-05 16:19:40

Ls All

Time of First Successful Submission: 2026-02-05 16:31:51

Find

Time of First Successful Submission: 2026-02-05 16:44:34

Piping Echo

Time of First Successful Submission: 2026-02-07 13:45:59

Piping Stdout

Time of First Successful Submission: 2026-02-07 13:50:53

Piping Stdin

Time of First Successful Submission: 2026-02-07 14:34:28


Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-02-19 11:24:24

Path Traversal 2

Time of First Successful Submission: 2026-02-19 11:47:39

CMDi 1

Time of First Successful Submission: 2026-02-19 12:08:12

CMDi 2

Time of First Successful Submission: 2026-02-19 13:41:53

CMDi 3

Time of First Successful Submission: 2026-02-19 13:53:27

CMDi 4

Time of First Successful Submission: 2026-02-19 14:01:25

CMDi 5

Time of First Successful Submission: 2026-02-19 14:17:07

CMDi 6

Time of First Successful Submission: 2026-02-19 14:24:49

Authentication Bypass 1

Time of First Successful Submission: 2026-02-19 16:26:00

Authentication Bypass 2

Time of First Successful Submission: 2026-02-19 16:30:14

Connect

Time of First Successful Submission: 2026-03-29 14:57:50

Send

Time of First Successful Submission: 2026-03-29 14:59:23

Shutdown

Time of First Successful Submission: 2026-03-29 15:02:27

Listen

Time of First Successful Submission: 2026-03-29 15:03:45

Scan 1

Time of First Successful Submission: 2026-03-29 16:26:23


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-02-05 12:07:04

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-05 12:10:52

Using the GUI Desktop

Time of First Successful Submission: 2026-02-05 12:16:28

Pasting into the Desktop

Time of First Successful Submission: 2026-02-05 12:19:29

Restarting Challenges

Time of First Successful Submission: 2026-02-05 12:26:18

Challenge Programs

Time of First Successful Submission: 2026-02-05 17:08:48

The Flag File

Time of First Successful Submission: 2026-02-05 17:12:08

Using Privileged Mode

Time of First Successful Submission: 2026-02-05 17:16:25

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-05 17:19:23

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-05 17:20:44


Linux Luminarium

128 / 128 1995 / 32394


Intro to Commands

Time of First Successful Submission: 2026-02-05 14:16:17

Intro to Arguments

Time of First Successful Submission: 2026-02-05 14:19:26

Command History

Time of First Successful Submission: 2026-02-05 14:20:41

The Root

Time of First Successful Submission: 2026-02-05 14:26:04

Program and absolute paths

Time of First Successful Submission: 2026-02-05 14:27:05

Position thy self

Time of First Successful Submission: 2026-02-05 14:30:21

Position elsewhere

Time of First Successful Submission: 2026-02-05 14:33:33

implicit relative paths, from /

Time of First Successful Submission: 2026-02-05 14:36:33

explicit relative paths, from /

Time of First Successful Submission: 2026-02-05 14:38:35

implicit relative path

Time of First Successful Submission: 2026-02-05 14:40:17

home sweet home

Time of First Successful Submission: 2026-02-05 14:43:15

cat: not the pet, but the command!

Time of First Successful Submission: 2026-02-05 16:10:12

catting absolute paths

Time of First Successful Submission: 2026-02-05 16:13:25

more catting practice

Time of First Successful Submission: 2026-02-05 16:15:09

grepping for a needle in a haystack

Time of First Successful Submission: 2026-02-05 16:16:21

comparing files

Time of First Successful Submission: 2026-02-05 16:18:19

listing files

Time of First Successful Submission: 2026-02-05 16:19:40

touching files

Time of First Successful Submission: 2026-02-05 16:21:44

removing files

Time of First Successful Submission: 2026-02-05 16:24:09

moving files

Time of First Successful Submission: 2026-02-05 16:26:39

copying files

Time of First Successful Submission: 2026-02-05 16:28:53

hidden files

Time of First Successful Submission: 2026-02-05 16:31:51

An Epic Filesystem Quest

Time of First Successful Submission: 2026-02-05 16:40:11

making directories

Time of First Successful Submission: 2026-02-05 16:41:59

finding files

Time of First Successful Submission: 2026-02-05 16:44:34

linking files

Time of First Successful Submission: 2026-02-05 17:00:14

Learning From Documentation

Time of First Successful Submission: 2026-02-06 13:54:10

Learning Complex Usage

Time of First Successful Submission: 2026-02-06 14:00:26

Reading Manuals

Time of First Successful Submission: 2026-02-06 14:08:29

Searching Manuals

Time of First Successful Submission: 2026-02-06 14:14:05

Searching For Manuals

Time of First Successful Submission: 2026-02-08 04:12:03

Helpful Programs

Time of First Successful Submission: 2026-02-06 15:15:15

Help for Builtins

Time of First Successful Submission: 2026-02-06 15:17:47

Matching with *

Time of First Successful Submission: 2026-02-07 12:39:16

Matching with ?

Time of First Successful Submission: 2026-02-07 12:40:39

Matching with []

Time of First Successful Submission: 2026-02-07 12:43:06

Matching paths with []

Time of First Successful Submission: 2026-02-07 12:45:29

Multiple globs

Time of First Successful Submission: 2026-02-07 12:49:58

Mixing globs

Time of First Successful Submission: 2026-02-07 12:55:24

Exclusionary globbing

Time of First Successful Submission: 2026-02-07 13:01:54

Tab completion

Time of First Successful Submission: 2026-02-07 13:21:51

Multiple options for tab completion

Time of First Successful Submission: 2026-02-07 13:34:18

Tab completion on commands

Time of First Successful Submission: 2026-02-07 13:37:56

Redirecting output

Time of First Successful Submission: 2026-02-07 13:45:59

Redirecting more output

Time of First Successful Submission: 2026-02-07 13:50:53

Appending output

Time of First Successful Submission: 2026-02-07 13:58:33

Redirecting errors

Time of First Successful Submission: 2026-02-07 14:29:53

Redirecting input

Time of First Successful Submission: 2026-02-07 14:34:28

Grepping stored results

Time of First Successful Submission: 2026-02-07 14:35:38

Grepping live output

Time of First Successful Submission: 2026-02-07 14:37:22

Grepping errors

Time of First Successful Submission: 2026-02-07 14:39:42

Filtering with grep -v

Time of First Successful Submission: 2026-02-07 14:41:59

Filtering with sed

Time of First Successful Submission: 2026-02-07 14:44:46

Duplicating piped data with tee

Time of First Successful Submission: 2026-02-08 04:07:26

Process substitution for input

Time of First Successful Submission: 2026-02-08 03:27:32

Writing to multiple programs

Time of First Successful Submission: 2026-02-08 03:48:05

Split-piping stderr and stdout

Time of First Successful Submission: 2026-02-08 03:56:22

Named pipes

Time of First Successful Submission: 2026-02-08 04:03:51

Printing Variables

Time of First Successful Submission: 2026-02-08 04:13:28

Setting Variables

Time of First Successful Submission: 2026-02-08 04:14:59

Multi-word Variables

Time of First Successful Submission: 2026-02-08 04:16:10

Exporting Variables

Time of First Successful Submission: 2026-02-08 04:19:12

Printing Exported Variables

Time of First Successful Submission: 2026-02-08 04:19:58

Storing Command Output

Time of First Successful Submission: 2026-02-08 04:22:38

Reading Input

Time of First Successful Submission: 2026-02-08 04:25:06

Reading Files

Time of First Successful Submission: 2026-02-08 04:26:52

Translating characters

Time of First Successful Submission: 2026-02-08 04:32:23

Deleting characters

Time of First Successful Submission: 2026-02-08 04:34:25

Deleting newlines

Time of First Successful Submission: 2026-02-08 04:36:33

Extracting the first lines with head

Time of First Successful Submission: 2026-02-08 04:37:40

Extracting specific sections of text

Time of First Successful Submission: 2026-02-08 04:39:53

Sorting data

Time of First Successful Submission: 2026-02-08 04:41:32

Listing Processes

Time of First Successful Submission: 2026-02-08 05:40:13

Killing Processes

Time of First Successful Submission: 2026-02-08 05:42:49

Interrupting Processes

Time of First Successful Submission: 2026-02-08 05:43:44

Killing Misbehaving Processes

Time of First Successful Submission: 2026-02-08 05:47:47

Suspending Processes

Time of First Successful Submission: 2026-02-08 05:49:00

Resuming Processes

Time of First Successful Submission: 2026-02-08 05:49:50

Backgrounding Processes

Time of First Successful Submission: 2026-02-08 05:55:02

Foregrounding Processes

Time of First Successful Submission: 2026-02-08 05:57:15

Starting Backgrounded Processes

Time of First Successful Submission: 2026-02-08 05:58:06

Process Exit Codes

Time of First Successful Submission: 2026-02-08 06:00:38

Becoming root with su

Time of First Successful Submission: 2026-02-08 14:56:59

Other users with su

Time of First Successful Submission: 2026-02-08 14:57:54

Cracking passwords

Time of First Successful Submission: 2026-02-08 15:06:31

Using sudo

Time of First Successful Submission: 2026-02-08 15:11:06

Changing File Ownership

Time of First Successful Submission: 2026-02-09 04:00:04

Groups and Files

Time of First Successful Submission: 2026-02-09 04:05:29

Fun With Groups Names

Time of First Successful Submission: 2026-02-09 04:07:00

Changing Permissions

Time of First Successful Submission: 2026-02-09 04:11:50

Executable Files

Time of First Successful Submission: 2026-02-09 04:13:38

Permission Tweaking Practice

Time of First Successful Submission: 2026-02-09 04:26:45

Permissions Setting Practice

Time of First Successful Submission: 2026-02-09 04:34:57

The SUID Bit

Time of First Successful Submission: 2026-02-09 04:38:23

Chaining with Semicolons

Time of First Successful Submission: 2026-02-09 04:41:19

Building on Success

Time of First Successful Submission: 2026-02-09 04:43:24

Handling Failure

Time of First Successful Submission: 2026-02-09 04:44:31

Your First Shell Script

Time of First Successful Submission: 2026-02-09 04:47:33

Redirecting Script Output

Time of First Successful Submission: 2026-02-09 04:50:09

Executable Shell Scripts

Time of First Successful Submission: 2026-02-09 04:55:29

Understanding Shebangs

Time of First Successful Submission: 2026-02-09 05:26:33

Scripting with Arguments

Time of First Successful Submission: 2026-02-09 05:29:46

Scripting with Conditionals

Time of First Successful Submission: 2026-02-09 05:33:42

Scripting with Default Cases

Time of First Successful Submission: 2026-02-09 05:37:40

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-02-09 05:43:02

Reading Shell Scripts

Time of First Successful Submission: 2026-02-09 05:45:49

Launching Screen

Time of First Successful Submission: 2026-02-09 05:47:52

Detaching and Attaching

Time of First Successful Submission: 2026-02-09 05:50:08

Finding Sessions

Time of First Successful Submission: 2026-02-09 05:52:15

Switching Windows

Time of First Successful Submission: 2026-02-09 05:54:20

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-02-09 05:57:21

Switching Windows (tmux)

Time of First Successful Submission: 2026-02-09 06:00:51

The PATH Variable

Time of First Successful Submission: 2026-02-09 06:02:46

Setting PATH

Time of First Successful Submission: 2026-02-09 06:05:17

Finding Commands

Time of First Successful Submission: 2026-02-09 06:06:52

Adding Commands

Time of First Successful Submission: 2026-02-10 12:32:23

Hijacking Commands

Time of First Successful Submission: 2026-02-10 12:39:56

Bashrc Backdoor

Time of First Successful Submission: 2026-02-10 12:58:16

Sniffing Input

Time of First Successful Submission: 2026-02-10 13:33:18

Overshared Directories

Time of First Successful Submission: 2026-02-10 13:46:38

Tricky Linking

Time of First Successful Submission: 2026-02-10 13:55:33

Sniffing Process Arguments

Time of First Successful Submission: 2026-02-10 14:01:26

Snooping on Configurations

Time of First Successful Submission: 2026-02-10 14:04:05

The Fork Bomb

Time of First Successful Submission: 2026-02-10 14:40:41

Disk-Space Doomsday

Time of First Successful Submission: 2026-02-10 15:09:31

rm -rf /

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

Life after rm -rf /

Time of First Successful Submission: 2026-02-10 15:30:28

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-02-10 15:39:28


Computing 101

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Your First Register

Time of First Successful Submission: 2026-02-12 02:55:26

Your First Syscall

Time of First Successful Submission: 2026-02-12 03:00:13

Exit Codes

Time of First Successful Submission: 2026-02-12 03:05:48

Building Executables

Time of First Successful Submission: 2026-02-12 03:15:08

Moving Between Registers

Time of First Successful Submission: 2026-02-12 03:23:49

Loading From Memory

Time of First Successful Submission: 2026-02-12 14:29:24

More Loading Practice

Time of First Successful Submission: 2026-02-12 14:36:49

Dereferencing Pointers

Time of First Successful Submission: 2026-02-12 15:02:45

Dereferencing Yourself

Time of First Successful Submission: 2026-02-12 15:29:09

Dereferencing with Offsets

Time of First Successful Submission: 2026-02-12 15:37:11

Stored Addresses

Time of First Successful Submission: 2026-02-12 15:42:10

Double Dereference

Time of First Successful Submission: 2026-02-12 15:51:06

The Stack

Time of First Successful Submission: 2026-02-19 03:43:02

Stack Offsets

Time of First Successful Submission: 2026-02-19 03:45:43

Program Arguments on the Stack

Time of First Successful Submission: 2026-02-19 03:57:37

Popping From the Stack

Time of First Successful Submission: 2026-02-19 10:04:52

Tracing Syscalls

Time of First Successful Submission: 2026-02-12 04:41:54

Starting GDB

Time of First Successful Submission: 2026-02-12 04:44:24

Starting Programs in GDB

Time of First Successful Submission: 2026-02-12 04:46:03

Writing Output

Time of First Successful Submission: 2026-02-13 02:46:56

Chaining Syscalls

Time of First Successful Submission: 2026-02-13 03:13:48

Writing Strings

Time of First Successful Submission: 2026-02-13 03:16:35

Reading Data

Time of First Successful Submission: 2026-02-13 03:21:44

set-register

Time of First Successful Submission: 2026-02-13 04:10:52

set-multiple-registers

Time of First Successful Submission: 2026-02-13 04:12:33

add-to-register

Time of First Successful Submission: 2026-02-13 04:16:05

linear-equation-registers

Time of First Successful Submission: 2026-02-13 04:19:17

integer-division

Time of First Successful Submission: 2026-02-13 04:47:08

modulo-operation

Time of First Successful Submission: 2026-02-13 04:50:59

set-upper-byte

Time of First Successful Submission: 2026-02-13 04:55:16

efficient-modulo

Time of First Successful Submission: 2026-02-13 05:01:41

byte-extraction

Time of First Successful Submission: 2026-02-13 09:39:41

bitwise-and

Time of First Successful Submission: 2026-02-13 09:45:51


Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-02-13 09:57:01

... and again!

Time of First Successful Submission: 2026-02-13 09:57:47

Newline Troubles

Time of First Successful Submission: 2026-02-13 10:02:35

Reasoning about files

Time of First Successful Submission: 2026-02-13 10:14:44

Specifying Filenames

Time of First Successful Submission: 2026-02-13 10:19:29

Binary and Hex Encoding

Time of First Successful Submission: 2026-02-13 10:34:42

More Hex

Time of First Successful Submission: 2026-02-13 10:36:37

Decoding Hex

Time of First Successful Submission: 2026-02-13 10:43:04

Decoding Practice

Time of First Successful Submission: 2026-02-13 10:55:41

Encoding Practice

Time of First Successful Submission: 2026-02-13 11:03:59

Hex-encoding ASCII

Time of First Successful Submission: 2026-02-13 12:54:47

Nested Encoding

Time of First Successful Submission: 2026-02-13 13:19:40

Hex-encoding UTF-8

Time of First Successful Submission: 2026-02-13 14:12:24

UTF Mixups

Time of First Successful Submission: 2026-02-13 14:37:13

Modifying Encoded Data

Time of First Successful Submission: 2026-02-13 15:03:36

Decoding Base64

Time of First Successful Submission: 2026-02-13 15:12:13

Encoding Base64

Time of First Successful Submission: 2026-02-13 15:21:23

Dealing with Obfuscation

Time of First Successful Submission: 2026-02-13 15:35:46

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-02-13 15:48:05

Your First HTTP Request

Time of First Successful Submission: 2026-02-14 02:59:10

Reading Flask

Time of First Successful Submission: 2026-02-14 03:02:53

Commented Data

Time of First Successful Submission: 2026-02-14 03:08:31

HTTP Metadata

Time of First Successful Submission: 2026-02-14 03:13:50

HTTP (netcat)

Time of First Successful Submission: 2026-02-14 03:21:40

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-14 03:28:10

HTTP (curl)

Time of First Successful Submission: 2026-02-14 03:31:04

HTTP (python)

Time of First Successful Submission: 2026-02-14 03:37:54

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-14 03:48:34

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-14 03:55:38

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-14 04:01:21

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-14 13:08:58

HTTP GET Parameters

Time of First Successful Submission: 2026-02-14 13:23:18

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-02-14 13:27:36

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-02-15 04:13:26

HTTP Forms

Time of First Successful Submission: 2026-02-14 13:31:36

HTTP Forms (curl)

Time of First Successful Submission: 2026-02-14 13:34:05

HTTP Forms (netcat)

Time of First Successful Submission: 2026-02-14 13:54:02

HTTP Forms (python)

Time of First Successful Submission: 2026-02-14 14:08:10

HTTP Forms Without Forms

Time of First Successful Submission: 2026-02-15 03:33:19

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-02-15 04:16:42

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-02-15 04:30:52

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-02-15 04:37:14

HTTP Redirects (curl)

Time of First Successful Submission: 2026-02-15 11:48:11

HTTP Redirects (python)

Time of First Successful Submission: 2026-02-15 11:51:06

HTTP Cookies (curl)

Time of First Successful Submission: 2026-02-15 12:03:55

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-02-15 12:08:29

HTTP Cookies (python)

Time of First Successful Submission: 2026-02-15 12:11:37

Server State (python)

Time of First Successful Submission: 2026-02-15 12:19:16

Listening Web

Time of First Successful Submission: 2026-02-15 12:52:31

Speaking Redirects

Time of First Successful Submission: 2026-02-15 13:07:51

JavaScript Redirects

Time of First Successful Submission: 2026-02-15 13:23:13

Including JavaScript

Time of First Successful Submission: 2026-02-15 16:47:38

HTTP (javascript)

Time of First Successful Submission: 2026-02-16 03:46:33

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-02-16 03:53:22

HTTP Forms (javascript)

Time of First Successful Submission: 2026-02-16 04:04:15

cat

Time of First Successful Submission: 2026-02-16 13:20:44

more

Time of First Successful Submission: 2026-02-16 13:21:34

less

Time of First Successful Submission: 2026-02-16 13:22:53

tail

Time of First Successful Submission: 2026-02-16 13:23:40

head

Time of First Successful Submission: 2026-02-16 13:24:17

sort

Time of First Successful Submission: 2026-02-16 13:29:14

vim

Time of First Successful Submission: 2026-02-16 13:29:41

emacs

Time of First Successful Submission: 2026-02-16 13:31:49

nano

Time of First Successful Submission: 2026-02-16 13:32:26

rev

Time of First Successful Submission: 2026-02-16 13:33:13

od

Time of First Successful Submission: 2026-02-16 13:44:34

hd

Time of First Successful Submission: 2026-02-16 13:52:28

xxd

Time of First Successful Submission: 2026-02-16 14:15:00

base32

Time of First Successful Submission: 2026-02-16 14:16:25

base64

Time of First Successful Submission: 2026-02-16 14:17:13

split

Time of First Successful Submission: 2026-02-16 14:19:26

gzip

Time of First Successful Submission: 2026-02-16 14:21:37

bzip2

Time of First Successful Submission: 2026-02-16 14:22:59

zip

Time of First Successful Submission: 2026-02-16 14:24:53

tar

Time of First Successful Submission: 2026-02-16 14:43:27

ar

Time of First Successful Submission: 2026-02-16 14:45:52

cpio

Time of First Successful Submission: 2026-02-16 14:47:59

genisoimage

Time of First Successful Submission: 2026-02-16 14:50:42

env

Time of First Successful Submission: 2026-02-16 14:52:01

find

Time of First Successful Submission: 2026-02-16 14:52:56

make

Time of First Successful Submission: 2026-02-16 14:55:37

nice

Time of First Successful Submission: 2026-02-16 14:25:45

timeout

Time of First Successful Submission: 2026-02-16 14:57:35

stdbuf

Time of First Successful Submission: 2026-02-16 15:00:10

setarch

Time of First Successful Submission: 2026-02-16 15:11:58

watch

Time of First Successful Submission: 2026-02-16 16:10:35

socat

Time of First Successful Submission: 2026-02-16 14:28:55

whiptail

Time of First Successful Submission: 2026-02-16 16:14:12

awk

Time of First Successful Submission: 2026-02-16 14:33:44

sed

Time of First Successful Submission: 2026-02-16 14:37:33

ed

Time of First Successful Submission: 2026-02-16 14:39:33

chown

Time of First Successful Submission: 2026-02-16 16:15:34

chmod

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

cp

Time of First Successful Submission: 2026-02-16 16:18:07

mv

Time of First Successful Submission: 2026-02-16 16:23:55

perl

Time of First Successful Submission: 2026-02-16 16:27:55

python

Time of First Successful Submission: 2026-02-16 16:31:22

ruby

Time of First Successful Submission: 2026-02-16 16:37:37

bash

Time of First Successful Submission: 2026-02-16 16:38:28

date

Time of First Successful Submission: 2026-02-16 16:40:19

dmesg

Time of First Successful Submission: 2026-02-16 16:41:56

wc

Time of First Successful Submission: 2026-02-16 16:44:09

gcc

Time of First Successful Submission: 2026-02-16 16:46:46

as

Time of First Successful Submission: 2026-02-16 16:48:23

wget

Time of First Successful Submission: 2026-02-16 16:53:29

ssh-keygen

Time of First Successful Submission: 2026-02-16 17:03:37

SQL Queries

Time of First Successful Submission: 2026-02-17 04:30:39

Filtering SQL

Time of First Successful Submission: 2026-02-17 04:39:29

Choosing Columns

Time of First Successful Submission: 2026-02-17 04:41:42

Exclusionary Filtering

Time of First Successful Submission: 2026-02-17 05:21:41

Filtering Strings

Time of First Successful Submission: 2026-02-17 05:25:32

Filtering on Expressions

Time of First Successful Submission: 2026-02-17 05:31:58

SELECTing Expressions

Time of First Successful Submission: 2026-02-17 05:48:38

Composite Conditions

Time of First Successful Submission: 2026-02-17 05:53:15

Reaching Your LIMITs

Time of First Successful Submission: 2026-02-17 05:55:37

Querying Metadata

Time of First Successful Submission: 2026-02-17 05:57:43


GCA CTF

23 / 104 143 / 43631


Using the Terminal

Time of First Successful Submission: 2026-02-05 12:07:04

Using the VSCode Workspace

Time of First Successful Submission: 2026-02-05 12:10:52

Using the GUI Desktop

Time of First Successful Submission: 2026-02-05 12:16:28

Pasting into the Desktop

Time of First Successful Submission: 2026-02-05 12:19:29

Connecting over SSH

Time of First Successful Submission: 2026-02-05 12:23:15

Restarting Challenges

Time of First Successful Submission: 2026-02-05 12:26:18

Getting Help

Time of First Successful Submission: 2026-02-05 12:35:50

Challenge Programs

Time of First Successful Submission: 2026-02-05 17:08:48

The Flag File

Time of First Successful Submission: 2026-02-05 17:12:08

Using Privileged Mode

Time of First Successful Submission: 2026-02-05 17:16:25

Persistent Home Directories - One

Time of First Successful Submission: 2026-02-05 17:19:23

Persistent Home Directories - Two

Time of First Successful Submission: 2026-02-05 17:20:44

Running Commands

Time of First Successful Submission: 2026-02-17 12:00:40

Move through the Linux filesystem.

Time of First Successful Submission: 2026-02-17 12:04:04

Create and delete files.

Time of First Successful Submission: 2026-02-17 12:05:39

Move, copy, and rename files.

Time of First Successful Submission: 2026-02-17 12:09:54

Display file contents in the terminal.

Time of First Successful Submission: 2026-02-17 12:11:07

Create files with nano.

Time of First Successful Submission: 2026-02-17 12:12:39

Edit files with nano.

Time of First Successful Submission: 2026-02-17 12:13:29

Locate files on the Linux filesystem.

Time of First Successful Submission: 2026-02-17 12:15:01

Find the password! (Searching files)

Time of First Successful Submission: 2026-02-17 12:19:48

Advanced Directory Techniques.

Time of First Successful Submission: 2026-02-17 12:23:41

Learn about command flags.

Time of First Successful Submission: 2026-02-17 12:26:46