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1 / 202 19760 / 22748


Triple Dereference

Time of First Successful Submission: 2025-08-31 18:27:20


Intro to Programming Languages

15 / 234 2503 / 29850


Commands

Time of First Successful Submission: 2025-06-27 01:30:27

Command Arguments

Time of First Successful Submission: 2025-06-27 01:31:39

Command History

Time of First Successful Submission: 2025-06-27 01:32:21

The Root Path

Time of First Successful Submission: 2025-06-27 02:06:34

Absolute Paths

Time of First Successful Submission: 2025-06-27 02:07:24

Changing position

Time of First Successful Submission: 2025-06-27 02:10:54

Changing to an Absolute Path

Time of First Successful Submission: 2025-06-27 02:12:35

Relative Paths

Time of First Successful Submission: 2025-06-27 02:18:08

Cat

Time of First Successful Submission: 2025-07-10 23:25:10

Ls

Time of First Successful Submission: 2025-07-10 23:31:25

Ls All

Time of First Successful Submission: 2025-07-10 23:40:47

Find

Time of First Successful Submission: 2025-07-15 16:55:23

Piping Echo

Time of First Successful Submission: 2025-08-07 19:57:20

Piping Stdout

Time of First Successful Submission: 2025-08-07 19:59:08

Piping Stdin

Time of First Successful Submission: 2025-08-07 20:20:35


Start Here

11 / 12 2060 / 40452


Using the Terminal

Time of First Successful Submission: 2025-08-15 00:08:10

Using the VSCode Workspace

Time of First Successful Submission: 2025-06-26 20:20:27

Using the GUI Desktop

Time of First Successful Submission: 2025-06-26 20:24:16

Pasting into the Desktop

Time of First Successful Submission: 2025-06-26 20:26:11

Restarting Challenges

Time of First Successful Submission: 2025-06-26 20:28:24

Challenge Programs

Time of First Successful Submission: 2025-06-26 20:37:05

The Flag File

Time of First Successful Submission: 2025-06-26 20:41:00

Using Privileged Mode

Time of First Successful Submission: 2025-06-26 20:45:28

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-26 20:51:07

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-26 20:52:55


Linux Luminarium

127 / 128 2225 / 30217


Intro to Commands

Time of First Successful Submission: 2025-06-27 01:30:27

Intro to Arguments

Time of First Successful Submission: 2025-06-27 01:31:39

Command History

Time of First Successful Submission: 2025-06-27 01:32:21

The Root

Time of First Successful Submission: 2025-06-27 02:06:34

Program and absolute paths

Time of First Successful Submission: 2025-06-27 02:07:24

Position thy self

Time of First Successful Submission: 2025-06-27 02:10:54

Position elsewhere

Time of First Successful Submission: 2025-06-27 02:12:35

implicit relative paths, from /

Time of First Successful Submission: 2025-06-27 02:18:08

explicit relative paths, from /

Time of First Successful Submission: 2025-06-27 02:20:36

implicit relative path

Time of First Successful Submission: 2025-06-27 02:22:09

home sweet home

Time of First Successful Submission: 2025-06-27 02:30:14

cat: not the pet, but the command!

Time of First Successful Submission: 2025-07-10 23:25:10

catting absolute paths

Time of First Successful Submission: 2025-07-10 23:25:15

more catting practice

Time of First Successful Submission: 2025-07-10 23:25:16

grepping for a needle in a haystack

Time of First Successful Submission: 2025-07-10 23:28:22

comparing files

Time of First Successful Submission: 2025-08-29 14:42:57

listing files

Time of First Successful Submission: 2025-07-10 23:31:25

touching files

Time of First Successful Submission: 2025-07-10 23:32:55

removing files

Time of First Successful Submission: 2025-07-10 23:34:58

moving files

Time of First Successful Submission: 2025-07-10 23:38:28

copying files

Time of First Successful Submission: 2026-02-20 23:56:12

hidden files

Time of First Successful Submission: 2025-07-10 23:40:47

An Epic Filesystem Quest

Time of First Successful Submission: 2025-07-10 23:51:18

making directories

Time of First Successful Submission: 2025-07-10 23:56:52

finding files

Time of First Successful Submission: 2025-07-15 16:55:23

linking files

Time of First Successful Submission: 2025-07-15 17:16:46

Learning From Documentation

Time of First Successful Submission: 2025-07-16 18:10:47

Learning Complex Usage

Time of First Successful Submission: 2025-07-16 18:14:13

Reading Manuals

Time of First Successful Submission: 2025-07-16 18:22:36

Searching Manuals

Time of First Successful Submission: 2025-07-16 18:26:53

Searching For Manuals

Time of First Successful Submission: 2025-07-16 21:08:02

Helpful Programs

Time of First Successful Submission: 2025-07-16 21:12:13

Help for Builtins

Time of First Successful Submission: 2025-07-16 21:18:17

Matching with *

Time of First Successful Submission: 2025-07-21 02:33:50

Matching with ?

Time of First Successful Submission: 2025-08-07 19:03:08

Matching with []

Time of First Successful Submission: 2025-08-07 19:18:32

Matching paths with []

Time of First Successful Submission: 2025-08-07 19:20:19

Multiple globs

Time of First Successful Submission: 2025-08-07 19:21:52

Mixing globs

Time of First Successful Submission: 2025-08-07 19:24:18

Exclusionary globbing

Time of First Successful Submission: 2025-08-07 19:32:08

Tab completion

Time of First Successful Submission: 2025-08-07 19:33:42

Multiple options for tab completion

Time of First Successful Submission: 2025-08-07 19:42:29

Tab completion on commands

Time of First Successful Submission: 2025-08-07 19:43:10

Redirecting output

Time of First Successful Submission: 2025-08-07 19:57:20

Redirecting more output

Time of First Successful Submission: 2025-08-07 19:59:08

Appending output

Time of First Successful Submission: 2025-08-07 20:00:29

Redirecting errors

Time of First Successful Submission: 2025-08-07 20:17:45

Redirecting input

Time of First Successful Submission: 2025-08-07 20:20:35

Grepping stored results

Time of First Successful Submission: 2025-08-07 20:26:29

Grepping live output

Time of First Successful Submission: 2025-08-07 20:32:14

Grepping errors

Time of First Successful Submission: 2025-08-07 20:34:15

Filtering with grep -v

Time of First Successful Submission: 2025-08-07 20:36:14

Duplicating piped data with tee

Time of First Successful Submission: 2025-08-08 03:46:25

Process substitution for input

Time of First Successful Submission: 2025-08-08 03:58:34

Writing to multiple programs

Time of First Successful Submission: 2025-08-14 19:07:04

Split-piping stderr and stdout

Time of First Successful Submission: 2025-08-14 20:35:16

Named pipes

Time of First Successful Submission: 2025-08-15 00:06:47

Printing Variables

Time of First Successful Submission: 2025-08-15 00:09:51

Setting Variables

Time of First Successful Submission: 2025-08-15 00:11:09

Multi-word Variables

Time of First Successful Submission: 2025-08-15 00:22:01

Exporting Variables

Time of First Successful Submission: 2025-08-15 00:32:20

Printing Exported Variables

Time of First Successful Submission: 2025-08-15 00:33:01

Storing Command Output

Time of First Successful Submission: 2025-08-15 00:35:11

Reading Input

Time of First Successful Submission: 2025-08-15 00:37:09

Reading Files

Time of First Successful Submission: 2025-08-15 00:41:42

Translating characters

Time of First Successful Submission: 2025-08-15 01:06:29

Deleting characters

Time of First Successful Submission: 2025-08-15 01:07:57

Deleting newlines

Time of First Successful Submission: 2025-08-15 01:16:30

Extracting the first lines with head

Time of First Successful Submission: 2025-08-15 01:17:50

Extracting specific sections of text

Time of First Successful Submission: 2025-08-15 01:20:42

Sorting data

Time of First Successful Submission: 2025-08-15 01:24:41

Listing Processes

Time of First Successful Submission: 2025-08-16 20:26:59

Killing Processes

Time of First Successful Submission: 2025-08-16 20:33:39

Interrupting Processes

Time of First Successful Submission: 2025-08-16 20:47:36

Killing Misbehaving Processes

Time of First Successful Submission: 2025-08-16 20:45:51

Suspending Processes

Time of First Successful Submission: 2025-08-16 20:57:19

Resuming Processes

Time of First Successful Submission: 2025-08-18 00:00:21

Backgrounding Processes

Time of First Successful Submission: 2025-08-18 00:04:36

Foregrounding Processes

Time of First Successful Submission: 2025-08-18 00:05:39

Starting Backgrounded Processes

Time of First Successful Submission: 2025-08-18 00:07:39

Process Exit Codes

Time of First Successful Submission: 2025-08-18 00:09:59

Becoming root with su

Time of First Successful Submission: 2025-08-18 14:54:20

Other users with su

Time of First Successful Submission: 2025-08-18 15:02:07

Cracking passwords

Time of First Successful Submission: 2025-08-18 15:17:45

Using sudo

Time of First Successful Submission: 2025-08-18 15:31:04

Changing File Ownership

Time of First Successful Submission: 2025-08-18 16:19:03

Groups and Files

Time of First Successful Submission: 2025-08-18 16:39:12

Fun With Groups Names

Time of First Successful Submission: 2025-08-19 02:28:14

Changing Permissions

Time of First Successful Submission: 2025-08-19 02:34:53

Executable Files

Time of First Successful Submission: 2025-08-20 01:41:14

Permission Tweaking Practice

Time of First Successful Submission: 2025-08-20 01:52:42

Permissions Setting Practice

Time of First Successful Submission: 2025-08-20 01:59:57

The SUID Bit

Time of First Successful Submission: 2025-08-20 02:04:52

Chaining with Semicolons

Time of First Successful Submission: 2025-08-27 20:57:45

Building on Success

Time of First Successful Submission: 2025-08-27 21:01:21

Handling Failure

Time of First Successful Submission: 2025-08-27 21:02:16

Your First Shell Script

Time of First Successful Submission: 2025-08-27 21:15:09

Redirecting Script Output

Time of First Successful Submission: 2025-08-27 21:20:24

Executable Shell Scripts

Time of First Successful Submission: 2025-08-27 21:29:00

Understanding Shebangs

Time of First Successful Submission: 2025-08-28 14:49:24

Scripting with Arguments

Time of First Successful Submission: 2025-08-28 14:51:47

Scripting with Conditionals

Time of First Successful Submission: 2025-08-28 14:53:57

Scripting with Default Cases

Time of First Successful Submission: 2025-08-28 14:56:27

Scripting with Multiple Conditions

Time of First Successful Submission: 2025-08-28 14:59:28

Reading Shell Scripts

Time of First Successful Submission: 2025-08-28 15:01:08

Launching Screen

Time of First Successful Submission: 2025-08-28 20:29:00

Detaching and Attaching

Time of First Successful Submission: 2025-08-28 20:31:17

Finding Sessions

Time of First Successful Submission: 2025-08-28 20:34:04

Switching Windows

Time of First Successful Submission: 2025-08-28 20:35:03

Detaching and Attaching (tmux)

Time of First Successful Submission: 2025-08-28 20:39:14

Switching Windows (tmux)

Time of First Successful Submission: 2025-08-28 20:41:09

The PATH Variable

Time of First Successful Submission: 2025-08-28 20:49:29

Setting PATH

Time of First Successful Submission: 2025-08-28 20:53:03

Finding Commands

Time of First Successful Submission: 2025-08-28 20:57:33

Adding Commands

Time of First Successful Submission: 2025-08-28 21:10:57

Hijacking Commands

Time of First Successful Submission: 2025-08-28 21:17:05

Bashrc Backdoor

Time of First Successful Submission: 2025-08-28 23:20:08

Sniffing Input

Time of First Successful Submission: 2025-08-28 23:42:35

Overshared Directories

Time of First Successful Submission: 2025-08-28 23:49:48

Tricky Linking

Time of First Successful Submission: 2025-08-29 00:14:55

Sniffing Process Arguments

Time of First Successful Submission: 2025-08-29 13:35:42

Snooping on Configurations

Time of First Successful Submission: 2025-08-29 13:39:35

The Fork Bomb

Time of First Successful Submission: 2025-08-29 14:37:36

Disk-Space Doomsday

Time of First Successful Submission: 2025-08-29 14:01:33

rm -rf /

Time of First Successful Submission: 2025-08-29 14:26:21

Life after rm -rf /

Time of First Successful Submission: 2025-08-29 14:31:06

Finding meaning after rm -rf /

Time of First Successful Submission: 2025-08-29 14:32:48


Computing 101

68 / 94 1123 / 20357


Your First Register

Time of First Successful Submission: 2025-08-30 20:15:57

Your First Syscall

Time of First Successful Submission: 2025-08-30 20:19:56

Exit Codes

Time of First Successful Submission: 2025-08-30 20:23:45

Building Executables

Time of First Successful Submission: 2025-08-30 20:29:05

Moving Between Registers

Time of First Successful Submission: 2025-08-30 20:32:00

Loading From Memory

Time of First Successful Submission: 2025-08-31 18:12:14

More Loading Practice

Time of First Successful Submission: 2025-08-31 18:12:57

Dereferencing Pointers

Time of First Successful Submission: 2025-08-31 18:15:35

Dereferencing Yourself

Time of First Successful Submission: 2025-08-31 18:17:53

Dereferencing with Offsets

Time of First Successful Submission: 2025-08-31 18:21:19

Stored Addresses

Time of First Successful Submission: 2025-08-31 18:24:19

Double Dereference

Time of First Successful Submission: 2025-08-31 18:26:32

Tracing Syscalls

Time of First Successful Submission: 2025-08-30 21:18:17

Starting GDB

Time of First Successful Submission: 2025-08-30 21:18:49

Starting Programs in GDB

Time of First Successful Submission: 2025-08-30 21:22:17

Writing Output

Time of First Successful Submission: 2025-08-31 22:49:32

Chaining Syscalls

Time of First Successful Submission: 2025-08-31 22:52:13

Writing Strings

Time of First Successful Submission: 2025-08-31 22:53:15

Reading Data

Time of First Successful Submission: 2025-08-31 22:59:56

set-register

Time of First Successful Submission: 2025-09-01 01:50:59

set-multiple-registers

Time of First Successful Submission: 2025-09-01 01:58:21

add-to-register

Time of First Successful Submission: 2025-09-01 01:55:20

linear-equation-registers

Time of First Successful Submission: 2025-09-01 01:57:58

integer-division

Time of First Successful Submission: 2025-09-01 02:04:24

modulo-operation

Time of First Successful Submission: 2025-09-01 17:30:43

set-upper-byte

Time of First Successful Submission: 2025-09-01 17:32:42

efficient-modulo

Time of First Successful Submission: 2025-09-01 17:44:28

byte-extraction

Time of First Successful Submission: 2025-09-01 17:55:58

bitwise-and

Time of First Successful Submission: 2025-09-01 18:04:10

check-even

Time of First Successful Submission: 2025-09-01 18:21:12

memory-read

Time of First Successful Submission: 2025-09-01 18:31:59

memory-write

Time of First Successful Submission: 2025-09-01 18:33:04

memory-increment

Time of First Successful Submission: 2025-09-01 18:39:08

byte-access

Time of First Successful Submission: 2025-09-01 18:44:39

memory-size-access

Time of First Successful Submission: 2025-09-01 18:53:34

little-endian-write

Time of First Successful Submission: 2025-09-01 23:32:10

memory-sum

Time of First Successful Submission: 2025-09-01 23:37:06

stack-subtraction

Time of First Successful Submission: 2025-09-01 23:38:50

swap-stack-values

Time of First Successful Submission: 2025-09-01 23:39:29

average-stack-values

Time of First Successful Submission: 2025-09-01 23:46:20

absolute-jump

Time of First Successful Submission: 2025-09-01 23:48:34

relative-jump

Time of First Successful Submission: 2025-09-02 00:11:25

jump-trampoline

Time of First Successful Submission: 2025-09-02 16:24:30

conditional-jump

Time of First Successful Submission: 2025-09-02 16:49:57

indirect-jump

Time of First Successful Submission: 2025-09-02 17:34:16

average-loop

Time of First Successful Submission: 2025-09-02 17:41:55

count-non-zero

Time of First Successful Submission: 2025-09-02 17:56:35

string-lower

Time of First Successful Submission: 2025-09-03 04:21:43

most-common-byte

Time of First Successful Submission: 2025-09-08 03:47:55

Exit

Time of First Successful Submission: 2025-10-09 21:09:23

Socket

Time of First Successful Submission: 2025-10-09 21:42:17

Bind

Time of First Successful Submission: 2025-10-10 00:46:05

Listen

Time of First Successful Submission: 2025-10-10 01:02:44

Accept

Time of First Successful Submission: 2025-10-10 01:15:30

Static Response

Time of First Successful Submission: 2025-10-10 03:31:53

Dynamic Response

Time of First Successful Submission: 2025-10-12 22:35:07

Iterative GET Server

Time of First Successful Submission: 2025-10-15 05:03:15

Concurrent GET Server

Time of First Successful Submission: 2025-10-15 05:20:48

Concurrent POST Server

Time of First Successful Submission: 2025-10-15 19:04:35

Web Server

Time of First Successful Submission: 2025-10-15 19:05:11

Debugging Programs

Time of First Successful Submission: 2025-09-16 18:34:13

Inspecting Registers

Time of First Successful Submission: 2025-09-21 18:49:54

Examining Memory

Time of First Successful Submission: 2025-09-22 02:45:20

Setting Breakpoints

Time of First Successful Submission: 2025-09-29 19:16:29

GDB Scripting

Time of First Successful Submission: 2025-09-29 20:42:54

Modifying Data

Time of First Successful Submission: 2025-10-08 05:35:20

Modifying Execution

Time of First Successful Submission: 2025-10-08 05:38:25

Broken Functions

Time of First Successful Submission: 2025-10-08 05:48:17


Playing With Programs

116 / 116 762 / 22816


What's the password?

Time of First Successful Submission: 2025-12-02 17:23:34

... and again!

Time of First Successful Submission: 2025-12-02 17:28:18

Newline Troubles

Time of First Successful Submission: 2025-12-02 17:35:50

Reasoning about files

Time of First Successful Submission: 2025-12-02 17:41:43

Specifying Filenames

Time of First Successful Submission: 2025-12-02 17:55:12

Binary and Hex Encoding

Time of First Successful Submission: 2025-12-02 18:57:12

More Hex

Time of First Successful Submission: 2025-12-02 19:00:35

Decoding Hex

Time of First Successful Submission: 2025-12-02 19:36:45

Decoding Practice

Time of First Successful Submission: 2025-12-19 05:13:52

Encoding Practice

Time of First Successful Submission: 2025-12-19 05:21:53

Hex-encoding ASCII

Time of First Successful Submission: 2025-12-20 21:14:47

Nested Encoding

Time of First Successful Submission: 2025-12-25 03:32:25

Hex-encoding UTF-8

Time of First Successful Submission: 2025-12-25 03:49:41

UTF Mixups

Time of First Successful Submission: 2025-12-25 05:05:27

Modifying Encoded Data

Time of First Successful Submission: 2025-12-26 01:06:32

Decoding Base64

Time of First Successful Submission: 2025-12-26 01:38:50

Encoding Base64

Time of First Successful Submission: 2025-12-26 01:46:38

Dealing with Obfuscation

Time of First Successful Submission: 2025-12-26 01:55:51

Dealing with Obfuscation 2

Time of First Successful Submission: 2025-12-26 02:02:52

Your First HTTP Request

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

Reading Flask

Time of First Successful Submission: 2026-02-03 03:25:48

Commented Data

Time of First Successful Submission: 2026-02-03 17:51:24

HTTP Metadata

Time of First Successful Submission: 2026-02-03 18:00:52

HTTP (netcat)

Time of First Successful Submission: 2026-02-03 18:28:13

HTTP Paths (netcat)

Time of First Successful Submission: 2026-02-03 18:30:21

HTTP (curl)

Time of First Successful Submission: 2026-02-03 18:33:52

HTTP (python)

Time of First Successful Submission: 2026-02-03 18:41:16

HTTP Host Header (python)

Time of First Successful Submission: 2026-02-03 18:54:55

HTTP Host Header (curl)

Time of First Successful Submission: 2026-02-03 19:07:33

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-02-03 19:11:12

URL Encoding (netcat)

Time of First Successful Submission: 2026-02-03 19:29:08

HTTP GET Parameters

Time of First Successful Submission: 2026-02-04 01:40:15

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-02-04 01:49:24

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-02-04 02:03:19

HTTP Forms

Time of First Successful Submission: 2026-02-04 14:39:46

HTTP Forms (curl)

Time of First Successful Submission: 2026-02-04 14:44:17

HTTP Forms (netcat)

Time of First Successful Submission: 2026-02-04 14:57:00

HTTP Forms (python)

Time of First Successful Submission: 2026-02-04 16:41:58

HTTP Forms Without Forms

Time of First Successful Submission: 2026-02-04 17:36:41

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-02-04 17:49:33

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-02-04 18:04:34

HTTP Redirects (netcat)

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

HTTP Redirects (curl)

Time of First Successful Submission: 2026-02-05 02:19:54

HTTP Redirects (python)

Time of First Successful Submission: 2026-02-05 18:42:49

HTTP Cookies (curl)

Time of First Successful Submission: 2026-02-05 18:48:59

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-02-05 18:55:25

HTTP Cookies (python)

Time of First Successful Submission: 2026-02-05 18:59:58

Server State (python)

Time of First Successful Submission: 2026-02-05 19:07:54

Listening Web

Time of First Successful Submission: 2026-02-05 19:36:37

Speaking Redirects

Time of First Successful Submission: 2026-02-12 19:32:02

JavaScript Redirects

Time of First Successful Submission: 2026-02-12 20:00:11

Including JavaScript

Time of First Successful Submission: 2026-02-15 22:25:18

HTTP (javascript)

Time of First Successful Submission: 2026-02-15 22:43:22

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-02-15 22:59:47

HTTP Forms (javascript)

Time of First Successful Submission: 2026-02-15 23:04:11

cat

Time of First Successful Submission: 2026-02-16 01:51:06

more

Time of First Successful Submission: 2026-02-16 01:55:40

less

Time of First Successful Submission: 2026-02-16 01:56:26

tail

Time of First Successful Submission: 2026-02-16 01:57:23

head

Time of First Successful Submission: 2026-02-16 01:57:57

sort

Time of First Successful Submission: 2026-02-16 01:59:29

vim

Time of First Successful Submission: 2026-02-16 02:01:26

emacs

Time of First Successful Submission: 2026-02-16 02:03:38

nano

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

rev

Time of First Successful Submission: 2026-02-16 02:47:33

od

Time of First Successful Submission: 2026-02-16 02:51:42

hd

Time of First Successful Submission: 2026-02-16 21:20:57

xxd

Time of First Successful Submission: 2026-02-16 21:24:26

base32

Time of First Successful Submission: 2026-02-17 01:10:23

base64

Time of First Successful Submission: 2026-02-17 01:10:55

split

Time of First Successful Submission: 2026-02-17 01:14:42

gzip

Time of First Successful Submission: 2026-02-17 01:40:12

bzip2

Time of First Successful Submission: 2026-02-17 03:10:41

zip

Time of First Successful Submission: 2026-02-17 03:26:20

tar

Time of First Successful Submission: 2026-02-17 03:33:02

ar

Time of First Successful Submission: 2026-02-18 01:11:55

cpio

Time of First Successful Submission: 2026-02-18 01:18:53

genisoimage

Time of First Successful Submission: 2026-02-18 02:00:12

env

Time of First Successful Submission: 2026-02-18 03:59:10

find

Time of First Successful Submission: 2026-02-18 04:29:19

make

Time of First Successful Submission: 2026-02-18 14:47:54

nice

Time of First Successful Submission: 2026-02-18 15:10:31

timeout

Time of First Successful Submission: 2026-02-18 15:22:11

stdbuf

Time of First Successful Submission: 2026-02-18 15:24:26

setarch

Time of First Successful Submission: 2026-02-18 15:46:32

watch

Time of First Successful Submission: 2026-02-18 15:51:44

socat

Time of First Successful Submission: 2026-02-18 16:09:35

whiptail

Time of First Successful Submission: 2026-02-18 16:31:18

awk

Time of First Successful Submission: 2026-02-19 01:35:32

sed

Time of First Successful Submission: 2026-02-19 01:37:46

ed

Time of First Successful Submission: 2026-02-19 01:43:15

chown

Time of First Successful Submission: 2026-02-19 01:46:47

chmod

Time of First Successful Submission: 2026-02-19 01:47:13

cp

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

mv

Time of First Successful Submission: 2026-02-20 02:05:30

perl

Time of First Successful Submission: 2026-02-20 02:23:12

python

Time of First Successful Submission: 2026-02-20 02:23:38

ruby

Time of First Successful Submission: 2026-02-20 02:26:50

bash

Time of First Successful Submission: 2026-02-20 02:36:26

date

Time of First Successful Submission: 2026-02-20 02:39:58

dmesg

Time of First Successful Submission: 2026-02-20 02:41:38

wc

Time of First Successful Submission: 2026-02-20 02:47:10

gcc

Time of First Successful Submission: 2026-02-20 16:54:49

as

Time of First Successful Submission: 2026-02-20 17:00:10

wget

Time of First Successful Submission: 2026-02-20 18:07:28

ssh-keygen

Time of First Successful Submission: 2026-02-20 18:12:05

SQL Queries

Time of First Successful Submission: 2026-02-21 00:21:14

Filtering SQL

Time of First Successful Submission: 2026-02-21 00:26:45

Choosing Columns

Time of First Successful Submission: 2026-02-21 00:33:23

Exclusionary Filtering

Time of First Successful Submission: 2026-02-21 00:34:38

Filtering Strings

Time of First Successful Submission: 2026-02-21 00:41:34

Filtering on Expressions

Time of First Successful Submission: 2026-02-21 00:43:44

SELECTing Expressions

Time of First Successful Submission: 2026-02-21 00:54:07

Composite Conditions

Time of First Successful Submission: 2026-02-21 00:56:34

Reaching Your LIMITs

Time of First Successful Submission: 2026-02-21 00:59:21

Querying Metadata

Time of First Successful Submission: 2026-02-21 01:01:00


GCA CTF

11 / 104 2230 / 40681


Using the Terminal

Time of First Successful Submission: 2025-08-15 00:08:10

Using the VSCode Workspace

Time of First Successful Submission: 2025-06-26 20:20:27

Using the GUI Desktop

Time of First Successful Submission: 2025-06-26 20:24:16

Pasting into the Desktop

Time of First Successful Submission: 2025-06-26 20:26:11

Restarting Challenges

Time of First Successful Submission: 2025-06-26 20:28:24

Getting Help

Time of First Successful Submission: 2025-06-26 20:35:17

Challenge Programs

Time of First Successful Submission: 2025-06-26 20:37:05

The Flag File

Time of First Successful Submission: 2025-06-26 20:41:00

Using Privileged Mode

Time of First Successful Submission: 2025-06-26 20:45:28

Persistent Home Directories - One

Time of First Successful Submission: 2025-06-26 20:51:07

Persistent Home Directories - Two

Time of First Successful Submission: 2025-06-26 20:52:55