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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-05-19 08:16:04

Command Arguments

Time of First Successful Submission: 2026-05-19 08:17:44

Command History

Time of First Successful Submission: 2026-05-19 08:18:39

The Root Path

Time of First Successful Submission: 2026-08-17 09:50:57

Absolute Paths

Time of First Successful Submission: 2026-08-17 09:52:07

Changing position

Time of First Successful Submission: 2026-08-17 09:56:06

Changing to an Absolute Path

Time of First Successful Submission: 2026-08-17 09:57:23

Relative Paths

Time of First Successful Submission: 2026-08-17 09:59:07

Cat

Time of First Successful Submission: 2026-08-17 10:04:16

Ls

Time of First Successful Submission: 2026-08-17 10:08:41

Ls All

Time of First Successful Submission: 2026-08-17 10:12:09

Find

Time of First Successful Submission: 2026-08-17 10:23:04

Piping Echo

Time of First Successful Submission: 2026-08-17 16:02:18

Piping Stdout

Time of First Successful Submission: 2026-08-17 16:03:49

Piping Stdin

Time of First Successful Submission: 2026-08-17 16:14:18


Intro to Cybersecurity

110 / 183 2378 / 24375


Path Traversal 1

Time of First Successful Submission: 2026-09-04 04:53:49

Path Traversal 2

Time of First Successful Submission: 2026-09-04 05:01:21

CMDi 1

Time of First Successful Submission: 2026-09-04 05:08:33

CMDi 2

Time of First Successful Submission: 2026-09-04 05:13:49

CMDi 3

Time of First Successful Submission: 2026-09-04 05:21:39

CMDi 4

Time of First Successful Submission: 2026-09-04 05:23:47

CMDi 5

Time of First Successful Submission: 2026-09-04 05:26:23

CMDi 6

Time of First Successful Submission: 2026-09-04 05:33:43

Authentication Bypass 1

Time of First Successful Submission: 2026-09-04 05:51:44

Authentication Bypass 2

Time of First Successful Submission: 2026-09-04 05:53:49

SQLi 1

Time of First Successful Submission: 2026-09-04 05:59:31

SQLi 2

Time of First Successful Submission: 2026-09-04 06:02:34

SQLi 3

Time of First Successful Submission: 2026-09-04 06:37:42

SQLi 4

Time of First Successful Submission: 2026-09-04 06:41:21

SQLi 5

Time of First Successful Submission: 2026-09-04 07:34:30

XSS 1

Time of First Successful Submission: 2026-09-04 09:18:18

XSS 2

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

XSS 3

Time of First Successful Submission: 2026-09-04 09:30:26

XSS 4

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

XSS 5

Time of First Successful Submission: 2026-09-04 11:15:12

XSS 6

Time of First Successful Submission: 2026-09-04 11:32:28

XSS 7

Time of First Successful Submission: 2026-09-04 11:55:17

CSRF 1

Time of First Successful Submission: 2026-09-04 12:24:21

CSRF 2

Time of First Successful Submission: 2026-09-04 12:45:39

CSRF 3

Time of First Successful Submission: 2026-09-04 13:19:38

CSRF 4

Time of First Successful Submission: 2026-09-04 13:43:44

CSRF 5

Time of First Successful Submission: 2026-09-04 13:54:47

Connect

Time of First Successful Submission: 2026-09-04 14:21:56

Send

Time of First Successful Submission: 2026-09-04 14:24:55

Shutdown

Time of First Successful Submission: 2026-09-04 14:38:21

Listen

Time of First Successful Submission: 2026-09-04 14:40:05

Scan 1

Time of First Successful Submission: 2026-09-04 14:52:58

Scan 2

Time of First Successful Submission: 2026-09-04 15:14:35

Monitor 1

Time of First Successful Submission: 2026-09-05 14:01:49

Monitor 2

Time of First Successful Submission: 2026-09-05 16:00:31

Sniffing Cookies

Time of First Successful Submission: 2026-09-05 16:39:18

Network Configuration

Time of First Successful Submission: 2026-09-06 04:40:05

Firewall 1

Time of First Successful Submission: 2026-09-06 04:50:32

Firewall 2

Time of First Successful Submission: 2026-09-06 04:54:07

Firewall 3

Time of First Successful Submission: 2026-09-06 04:58:48

Denial of Service 1

Time of First Successful Submission: 2026-09-06 05:07:36

Denial of Service 2

Time of First Successful Submission: 2026-09-06 05:09:11

Denial of Service 3

Time of First Successful Submission: 2026-09-06 15:09:41

Ethernet

Time of First Successful Submission: 2026-09-07 07:12:38

IP

Time of First Successful Submission: 2026-09-07 07:31:14

TCP

Time of First Successful Submission: 2026-09-07 07:37:16

TCP Handshake

Time of First Successful Submission: 2026-09-07 07:49:34

UDP

Time of First Successful Submission: 2026-09-07 08:12:05

UDP 2

Time of First Successful Submission: 2026-09-07 08:19:46

UDP Spoofing 1

Time of First Successful Submission: 2026-09-07 08:27:59

UDP Spoofing 2

Time of First Successful Submission: 2026-09-07 08:45:16

UDP Spoofing 3

Time of First Successful Submission: 2026-09-07 09:02:30

UDP Spoofing 4

Time of First Successful Submission: 2026-09-07 09:07:26

ARP

Time of First Successful Submission: 2026-09-07 09:14:47

Intercept

Time of First Successful Submission: 2026-09-07 09:31:21

Man-in-the-Middle

Time of First Successful Submission: 2026-09-07 17:57:27

XOR

Time of First Successful Submission: 2026-09-07 18:06:51

XORing Hex

Time of First Successful Submission: 2026-09-07 18:34:14

XORing ASCII

Time of First Successful Submission: 2026-09-07 18:47:18

XORing ASCII Strings

Time of First Successful Submission: 2026-09-08 05:01:29

One-time Pad

Time of First Successful Submission: 2026-09-08 05:10:10

One-time Pad Tampering

Time of First Successful Submission: 2026-09-08 05:40:06

Many-time Pad

Time of First Successful Submission: 2026-09-08 06:05:57

AES

Time of First Successful Submission: 2026-09-08 06:17:46

AES-ECB-CPA

Time of First Successful Submission: 2026-09-09 05:55:13

AES-ECB-CPA-HTTP

Time of First Successful Submission: 2026-09-09 06:30:42

AES-ECB-CPA-HTTP (base64)

Time of First Successful Submission: 2026-09-09 06:55:12

AES-ECB-CPA-Suffix

Time of First Successful Submission: 2026-09-09 07:16:18

AES-ECB-CPA-Prefix

Time of First Successful Submission: 2026-09-09 09:15:09

AES-ECB-CPA-Prefix-2

Time of First Successful Submission: 2026-09-09 09:18:12

AES-ECB-CPA-Prefix-Miniboss

Time of First Successful Submission: 2026-09-09 09:41:18

AES-ECB-CPA-Prefix-Boss

Time of First Successful Submission: 2026-09-09 11:51:41

AES-CBC

Time of First Successful Submission: 2026-09-09 17:44:00

AES-CBC Tampering

Time of First Successful Submission: 2026-09-11 04:29:37

AES-CBC Resizing

Time of First Successful Submission: 2026-09-11 04:31:35

AES-CBC-POA-Partial-Block

Time of First Successful Submission: 2026-09-11 09:23:43

AES-CBC-POA-Full-Block

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

AES-CBC-POA-Multi-Block

Time of First Successful Submission: 2026-09-11 19:42:50

AES-CBC-POA-Encrypt

Time of First Successful Submission: 2026-09-13 15:42:52

AES-CBC-POA-Encrypt-2

Time of First Successful Submission: 2026-09-13 15:47:09

DHKE

Time of First Successful Submission: 2026-09-13 16:55:52

DHKE-to-AES

Time of First Successful Submission: 2026-09-13 17:13:57

RSA 1

Time of First Successful Submission: 2026-09-14 07:35:57

RSA 2

Time of First Successful Submission: 2026-09-16 10:30:32

RSA 3

Time of First Successful Submission: 2026-09-16 11:21:12

RSA 4

Time of First Successful Submission: 2026-09-16 11:45:02

RSA Signatures

Time of First Successful Submission: 2026-09-16 13:23:03

SHA 1

Time of First Successful Submission: 2026-09-16 15:37:22

SHA 2

Time of First Successful Submission: 2026-09-16 15:53:37

TLS 1

Time of First Successful Submission: 2026-09-16 16:57:22

TLS 2

Time of First Successful Submission: 2026-09-17 14:46:18

level1

Time of First Successful Submission: 2026-09-17 14:50:18

level2

Time of First Successful Submission: 2026-09-17 14:53:05

level3

Time of First Successful Submission: 2026-09-17 14:54:17

level4

Time of First Successful Submission: 2026-09-17 14:55:05

level5

Time of First Successful Submission: 2026-09-17 14:55:50

level6

Time of First Successful Submission: 2026-09-17 14:57:06

level7

Time of First Successful Submission: 2026-09-17 14:58:11

level8

Time of First Successful Submission: 2026-09-17 14:58:46

level9

Time of First Successful Submission: 2026-09-17 14:59:41

level10

Time of First Successful Submission: 2026-09-17 15:01:42

level11

Time of First Successful Submission: 2026-09-17 15:04:28

level12

Time of First Successful Submission: 2026-09-17 15:06:34

level13

Time of First Successful Submission: 2026-09-17 15:07:25

level14

Time of First Successful Submission: 2026-09-17 15:12:07

level15

Time of First Successful Submission: 2026-09-17 15:13:39

level16

Time of First Successful Submission: 2026-09-17 15:24:30

level17

Time of First Successful Submission: 2026-09-17 16:02:19

level18

Time of First Successful Submission: 2026-09-17 16:14:07

level19

Time of First Successful Submission: 2026-09-17 16:18:57


Start Here

10 / 10 15910 / 65362


Using the Terminal

Time of First Successful Submission: 2026-08-19 20:47:44

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-19 20:55:38

Using the GUI Desktop

Time of First Successful Submission: 2026-08-19 20:57:08

Pasting into the Desktop

Time of First Successful Submission: 2026-08-19 21:01:04

Restarting Challenges

Time of First Successful Submission: 2026-08-19 21:04:20

Challenge Programs

Time of First Successful Submission: 2026-08-19 21:09:44

The Flag File

Time of First Successful Submission: 2026-08-19 21:11:50

Using Privileged Mode

Time of First Successful Submission: 2026-08-19 21:13:54

Persistent Home Directories - One

Time of First Successful Submission: 2026-08-19 21:15:42

Persistent Home Directories - Two

Time of First Successful Submission: 2026-08-19 21:16:07


Linux Luminarium

128 / 128 4441 / 47878


Intro to Commands

Time of First Successful Submission: 2026-05-19 08:16:04

Intro to Arguments

Time of First Successful Submission: 2026-05-19 08:17:44

Command History

Time of First Successful Submission: 2026-05-19 08:18:39

The Root

Time of First Successful Submission: 2026-08-17 09:50:57

Program and absolute paths

Time of First Successful Submission: 2026-08-17 09:52:07

Position thy self

Time of First Successful Submission: 2026-08-17 09:56:06

Position elsewhere

Time of First Successful Submission: 2026-08-17 09:57:23

implicit relative paths, from /

Time of First Successful Submission: 2026-08-17 09:59:07

explicit relative paths, from /

Time of First Successful Submission: 2026-08-17 09:59:59

implicit relative path

Time of First Successful Submission: 2026-08-17 10:00:50

home sweet home

Time of First Successful Submission: 2026-08-17 10:02:45

cat: not the pet, but the command!

Time of First Successful Submission: 2026-08-17 10:04:16

catting absolute paths

Time of First Successful Submission: 2026-08-17 10:04:57

more catting practice

Time of First Successful Submission: 2026-08-17 10:05:42

grepping for a needle in a haystack

Time of First Successful Submission: 2026-08-17 10:06:47

comparing files

Time of First Successful Submission: 2026-08-17 10:07:51

listing files

Time of First Successful Submission: 2026-08-17 10:08:41

touching files

Time of First Successful Submission: 2026-08-17 10:09:31

removing files

Time of First Successful Submission: 2026-08-17 10:10:14

moving files

Time of First Successful Submission: 2026-08-17 10:10:52

copying files

Time of First Successful Submission: 2026-08-17 10:11:20

hidden files

Time of First Successful Submission: 2026-08-17 10:12:09

An Epic Filesystem Quest

Time of First Successful Submission: 2026-08-17 10:19:21

making directories

Time of First Successful Submission: 2026-08-17 10:20:21

finding files

Time of First Successful Submission: 2026-08-17 10:23:04

linking files

Time of First Successful Submission: 2026-08-17 10:28:25

Learning From Documentation

Time of First Successful Submission: 2026-08-17 10:30:26

Learning Complex Usage

Time of First Successful Submission: 2026-08-17 10:32:26

Reading Manuals

Time of First Successful Submission: 2026-08-17 10:33:53

Searching Manuals

Time of First Successful Submission: 2026-08-17 10:34:56

Searching For Manuals

Time of First Successful Submission: 2026-08-17 10:40:45

Helpful Programs

Time of First Successful Submission: 2026-08-17 10:41:54

Help for Builtins

Time of First Successful Submission: 2026-08-17 10:43:07

Matching with *

Time of First Successful Submission: 2026-08-17 10:54:32

Matching with ?

Time of First Successful Submission: 2026-08-17 10:55:29

Matching with []

Time of First Successful Submission: 2026-08-17 10:57:08

Matching paths with []

Time of First Successful Submission: 2026-08-17 10:58:36

Multiple globs

Time of First Successful Submission: 2026-08-17 11:00:08

Mixing globs

Time of First Successful Submission: 2026-08-17 11:12:00

Exclusionary globbing

Time of First Successful Submission: 2026-08-17 11:13:43

Tab completion

Time of First Successful Submission: 2026-08-17 11:14:40

Multiple options for tab completion

Time of First Successful Submission: 2026-08-17 11:17:44

Tab completion on commands

Time of First Successful Submission: 2026-08-17 11:18:22

Redirecting output

Time of First Successful Submission: 2026-08-17 16:02:18

Redirecting more output

Time of First Successful Submission: 2026-08-17 16:03:49

Appending output

Time of First Successful Submission: 2026-08-17 16:06:07

Redirecting errors

Time of First Successful Submission: 2026-08-17 16:10:48

Redirecting input

Time of First Successful Submission: 2026-08-17 16:14:18

Grepping stored results

Time of First Successful Submission: 2026-08-17 16:15:32

Grepping live output

Time of First Successful Submission: 2026-08-17 16:16:55

Grepping errors

Time of First Successful Submission: 2026-08-17 16:18:50

Filtering with grep -v

Time of First Successful Submission: 2026-08-17 16:21:13

Filtering with sed

Time of First Successful Submission: 2026-08-17 16:30:23

Duplicating piped data with tee

Time of First Successful Submission: 2026-08-17 16:41:52

Process substitution for input

Time of First Successful Submission: 2026-08-17 17:37:34

Writing to multiple programs

Time of First Successful Submission: 2026-08-18 05:14:41

Split-piping stderr and stdout

Time of First Successful Submission: 2026-08-18 05:18:52

Named pipes

Time of First Successful Submission: 2026-08-18 05:27:41

Printing Variables

Time of First Successful Submission: 2026-08-18 05:29:43

Setting Variables

Time of First Successful Submission: 2026-08-18 05:30:14

Multi-word Variables

Time of First Successful Submission: 2026-08-18 05:31:20

Exporting Variables

Time of First Successful Submission: 2026-08-18 05:33:01

Printing Exported Variables

Time of First Successful Submission: 2026-08-18 05:33:37

Storing Command Output

Time of First Successful Submission: 2026-08-18 05:34:47

Reading Input

Time of First Successful Submission: 2026-08-18 06:06:48

Reading Files

Time of First Successful Submission: 2026-08-18 06:13:21

Translating characters

Time of First Successful Submission: 2026-08-18 06:17:49

Deleting characters

Time of First Successful Submission: 2026-08-18 06:19:12

Deleting newlines

Time of First Successful Submission: 2026-08-18 06:20:53

Extracting the first lines with head

Time of First Successful Submission: 2026-08-18 06:26:11

Extracting specific sections of text

Time of First Successful Submission: 2026-08-18 06:31:02

Sorting data

Time of First Successful Submission: 2026-08-18 06:32:23

Listing Processes

Time of First Successful Submission: 2026-08-18 06:48:38

Killing Processes

Time of First Successful Submission: 2026-08-18 06:49:33

Interrupting Processes

Time of First Successful Submission: 2026-08-18 06:52:14

Killing Misbehaving Processes

Time of First Successful Submission: 2026-08-18 06:56:32

Suspending Processes

Time of First Successful Submission: 2026-08-18 06:57:39

Resuming Processes

Time of First Successful Submission: 2026-08-18 06:58:04

Backgrounding Processes

Time of First Successful Submission: 2026-08-18 07:01:42

Foregrounding Processes

Time of First Successful Submission: 2026-08-18 07:04:52

Starting Backgrounded Processes

Time of First Successful Submission: 2026-08-18 07:05:35

Process Exit Codes

Time of First Successful Submission: 2026-08-18 07:06:58

Becoming root with su

Time of First Successful Submission: 2026-08-18 07:13:02

Other users with su

Time of First Successful Submission: 2026-08-18 07:14:58

Cracking passwords

Time of First Successful Submission: 2026-08-18 07:20:31

Using sudo

Time of First Successful Submission: 2026-08-18 07:23:57

Changing File Ownership

Time of First Successful Submission: 2026-08-18 07:25:52

Groups and Files

Time of First Successful Submission: 2026-08-18 07:29:09

Fun With Groups Names

Time of First Successful Submission: 2026-08-18 07:30:58

Changing Permissions

Time of First Successful Submission: 2026-08-18 07:31:53

Executable Files

Time of First Successful Submission: 2026-08-18 07:32:53

Permission Tweaking Practice

Time of First Successful Submission: 2026-08-18 07:39:25

Permissions Setting Practice

Time of First Successful Submission: 2026-08-18 07:50:20

The SUID Bit

Time of First Successful Submission: 2026-08-18 07:54:13

Chaining with Semicolons

Time of First Successful Submission: 2026-08-18 08:00:52

Building on Success

Time of First Successful Submission: 2026-08-18 08:01:24

Handling Failure

Time of First Successful Submission: 2026-08-18 08:01:55

Your First Shell Script

Time of First Successful Submission: 2026-08-18 08:05:28

Redirecting Script Output

Time of First Successful Submission: 2026-08-18 08:07:24

Executable Shell Scripts

Time of First Successful Submission: 2026-08-18 08:10:36

Understanding Shebangs

Time of First Successful Submission: 2026-08-18 08:12:47

Scripting with Arguments

Time of First Successful Submission: 2026-08-18 08:15:43

Scripting with Conditionals

Time of First Successful Submission: 2026-08-18 08:21:27

Scripting with Default Cases

Time of First Successful Submission: 2026-08-18 08:22:25

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-08-18 08:25:43

Reading Shell Scripts

Time of First Successful Submission: 2026-08-18 08:27:09

Launching Screen

Time of First Successful Submission: 2026-08-18 08:28:32

Detaching and Attaching

Time of First Successful Submission: 2026-08-18 08:29:58

Finding Sessions

Time of First Successful Submission: 2026-08-18 08:31:11

Switching Windows

Time of First Successful Submission: 2026-08-18 08:32:42

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-08-18 08:33:57

Switching Windows (tmux)

Time of First Successful Submission: 2026-08-18 08:35:08

The PATH Variable

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

Setting PATH

Time of First Successful Submission: 2026-08-18 08:42:38

Finding Commands

Time of First Successful Submission: 2026-08-18 08:44:03

Adding Commands

Time of First Successful Submission: 2026-08-18 08:51:12

Hijacking Commands

Time of First Successful Submission: 2026-08-18 08:57:59

Bashrc Backdoor

Time of First Successful Submission: 2026-08-18 09:01:50

Sniffing Input

Time of First Successful Submission: 2026-08-18 09:13:37

Overshared Directories

Time of First Successful Submission: 2026-08-18 09:22:37

Tricky Linking

Time of First Successful Submission: 2026-08-18 09:35:39

Sniffing Process Arguments

Time of First Successful Submission: 2026-08-18 09:40:13

Snooping on Configurations

Time of First Successful Submission: 2026-08-18 09:42:51

The Fork Bomb

Time of First Successful Submission: 2026-08-18 10:05:25

Disk-Space Doomsday

Time of First Successful Submission: 2026-08-18 10:10:33

rm -rf /

Time of First Successful Submission: 2026-08-18 10:12:28

Life after rm -rf /

Time of First Successful Submission: 2026-08-18 10:19:21

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-08-18 10:22:18


Computing 101

132 / 132 251 / 23339


Your First Register

Time of First Successful Submission: 2026-08-19 21:29:40

Your First Syscall

Time of First Successful Submission: 2026-08-19 21:47:21

Exit Codes

Time of First Successful Submission: 2026-08-19 21:46:01

Building Executables

Time of First Successful Submission: 2026-08-19 22:03:31

Moving Between Registers

Time of First Successful Submission: 2026-08-19 22:13:55

Loading From Memory

Time of First Successful Submission: 2026-08-19 22:25:01

More Loading Practice

Time of First Successful Submission: 2026-08-19 22:26:08

Dereferencing Pointers

Time of First Successful Submission: 2026-08-20 02:40:22

Dereferencing Yourself

Time of First Successful Submission: 2026-08-22 17:50:42

Dereferencing with Offsets

Time of First Successful Submission: 2026-08-22 17:55:02

Stored Addresses

Time of First Successful Submission: 2026-08-22 18:13:31

Double Dereference

Time of First Successful Submission: 2026-08-22 18:16:20

The Stack

Time of First Successful Submission: 2026-08-22 19:30:36

Stack Offsets

Time of First Successful Submission: 2026-08-22 19:32:21

Program Arguments on the Stack

Time of First Successful Submission: 2026-08-22 19:37:03

Popping From the Stack

Time of First Successful Submission: 2026-08-22 19:44:28

Negative Numbers

Time of First Successful Submission: 2026-08-23 11:25:43

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-08-25 06:39:53

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-08-25 07:01:38

Encoding Negatives

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

Binary and Hex Encoding

Time of First Successful Submission: 2026-08-25 07:12:03

More Hex

Time of First Successful Submission: 2026-08-25 07:15:33

Decoding Hex

Time of First Successful Submission: 2026-08-25 07:20:15

Mixed Conversions

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

Disassembling Programs

Time of First Successful Submission: 2026-08-25 08:22:38

Tracing Syscalls

Time of First Successful Submission: 2026-08-25 08:28:24

Starting GDB

Time of First Successful Submission: 2026-08-25 09:41:11

Quitting GDB

Time of First Successful Submission: 2026-08-25 09:41:47

Starting Programs in GDB

Time of First Successful Submission: 2026-08-25 09:44:17

Disassembling in GDB

Time of First Successful Submission: 2026-08-25 09:45:46

Stepping Through Instructions

Time of First Successful Submission: 2026-08-25 09:48:11

Reading Register Values

Time of First Successful Submission: 2026-08-25 09:49:24

Setting Register Values

Time of First Successful Submission: 2026-08-25 09:53:16

Popping Stack Values

Time of First Successful Submission: 2026-08-25 09:55:01

Examining Memory

Time of First Successful Submission: 2026-08-25 09:56:47

Examining Stack Pointers

Time of First Successful Submission: 2026-08-25 10:02:05

Cooperative Debugging

Time of First Successful Submission: 2026-08-25 10:25:05

Running with Arguments

Time of First Successful Submission: 2026-08-25 10:31:38

Redirecting Input in GDB

Time of First Successful Submission: 2026-08-25 10:45:47

Writing Output

Time of First Successful Submission: 2026-08-25 11:20:40

Chaining Syscalls

Time of First Successful Submission: 2026-08-25 11:22:20

Writing Strings

Time of First Successful Submission: 2026-08-25 11:25:36

Reading Data

Time of First Successful Submission: 2026-08-25 11:48:31

Reading Exactly

Time of First Successful Submission: 2026-08-25 11:55:18

Opening Files

Time of First Successful Submission: 2026-08-25 12:01:56

Hardcoding the Filename

Time of First Successful Submission: 2026-08-25 12:16:28

RIP-Relative Strings

Time of First Successful Submission: 2026-08-25 12:38:05

Comparing Values

Time of First Successful Submission: 2026-08-26 02:12:23

Comparing Characters

Time of First Successful Submission: 2026-08-26 02:20:05

Conditional Control Flow

Time of First Successful Submission: 2026-08-26 02:27:14

Comparing Strings

Time of First Successful Submission: 2026-08-26 02:27:00

Reverse the Password

Time of First Successful Submission: 2026-08-26 02:33:57

Conditionals Without Conditionals

Time of First Successful Submission: 2026-08-26 04:23:17

Recognizing Loops

Time of First Successful Submission: 2026-08-26 04:36:24

Writing Loops

Time of First Successful Submission: 2026-08-26 06:44:12

Writing From a Shared Library

Time of First Successful Submission: 2026-08-26 07:42:54

Returning a Value

Time of First Successful Submission: 2026-08-26 07:48:39

Calling Through a Pointer

Time of First Successful Submission: 2026-08-26 07:55:26

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-08-26 07:57:21

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-08-26 08:15:01

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-08-26 08:24:18

Sign Extension

Time of First Successful Submission: 2026-08-26 08:39:37

Little-Endian Bytes

Time of First Successful Submission: 2026-08-26 08:57:24

Qword by Qword

Time of First Successful Submission: 2026-08-26 12:56:12

Dword by Dword

Time of First Successful Submission: 2026-08-26 15:26:57

Word by Word

Time of First Successful Submission: 2026-08-26 15:40:02

Byte by Byte

Time of First Successful Submission: 2026-08-26 15:43:28

Cracking a Struct

Time of First Successful Submission: 2026-08-26 15:48:48

Scrambled Struct

Time of First Successful Submission: 2026-08-26 15:57:05

Reverse the Calculation

Time of First Successful Submission: 2026-08-27 01:14:47

Reverse the Reverse

Time of First Successful Submission: 2026-08-27 01:15:47

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-08-27 01:18:31

Even or Odd

Time of First Successful Submission: 2026-08-27 02:44:18

Masking Bits

Time of First Successful Submission: 2026-08-27 02:51:33

Lowercase a String

Time of First Successful Submission: 2026-08-27 03:15:45

Uppercase a String

Time of First Successful Submission: 2026-08-27 03:33:33

Swap Case

Time of First Successful Submission: 2026-08-27 03:41:23

Shifting Left

Time of First Successful Submission: 2026-08-27 03:45:17

Shifting Right

Time of First Successful Submission: 2026-08-27 03:48:44

Loops on Data

Time of First Successful Submission: 2026-08-27 04:03:01

Reaching Into the Caller's Frame

Time of First Successful Submission: 2026-08-27 04:57:59

Loading Stale Stack Data

Time of First Successful Submission: 2026-08-27 06:09:47

Stealing Stale Stack Data

Time of First Successful Submission: 2026-08-27 06:15:36

Reserving Your Own Frame

Time of First Successful Submission: 2026-08-27 06:52:43

Using Your Own Frame

Time of First Successful Submission: 2026-08-27 07:31:07

Environment Variables on the Stack

Time of First Successful Submission: 2026-08-27 08:08:35

Aligning the Stack Through the Environment

Time of First Successful Submission: 2026-08-27 08:16:44

Aligning the Stack Through GDB

Time of First Successful Submission: 2026-08-27 08:21:30

Aligning the Stack Through GDB, Generalized

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

A Single Digit

Time of First Successful Submission: 2026-08-27 08:40:33

Two Digits

Time of First Successful Submission: 2026-08-27 09:11:43

String to Integer

Time of First Successful Submission: 2026-08-27 09:17:47

Negative Numbers

Time of First Successful Submission: 2026-08-27 09:26:05

Where the Number Ends

Time of First Successful Submission: 2026-08-27 18:55:31

A Whole Program

Time of First Successful Submission: 2026-08-27 19:12:44

A Single Digit, Back to Text

Time of First Successful Submission: 2026-08-27 19:16:55

Divide and Remainder

Time of First Successful Submission: 2026-08-28 03:25:21

Drop the Leading Zero

Time of First Successful Submission: 2026-08-28 04:12:58

Integer to String

Time of First Successful Submission: 2026-08-28 04:43:20

Negative Numbers, Back to Text

Time of First Successful Submission: 2026-08-28 04:52:06

Sum Them All

Time of First Successful Submission: 2026-08-28 05:29:59

Addition

Time of First Successful Submission: 2026-08-28 05:55:59

Subtraction

Time of First Successful Submission: 2026-08-28 05:59:55

Multiplication

Time of First Successful Submission: 2026-08-28 06:02:51

Bitwise Operators

Time of First Successful Submission: 2026-08-28 06:07:25

Unary Operators

Time of First Successful Submission: 2026-08-28 06:33:35

Literal Output

Time of First Successful Submission: 2026-08-29 05:07:09

Newline Escapes

Time of First Successful Submission: 2026-08-29 06:01:26

Escaped Syntax

Time of First Successful Submission: 2026-08-29 06:07:44

Decimal Markers

Time of First Successful Submission: 2026-08-29 07:16:47

Multiple Decimal Markers

Time of First Successful Submission: 2026-08-29 07:17:21

String Markers

Time of First Successful Submission: 2026-08-30 02:37:28

Hex Byte Escapes

Time of First Successful Submission: 2026-08-30 04:06:11

Debugging Programs

Time of First Successful Submission: 2026-08-30 04:21:29

Inspecting Registers

Time of First Successful Submission: 2026-08-30 04:28:59

Examining Memory

Time of First Successful Submission: 2026-08-30 04:44:03

Setting Breakpoints

Time of First Successful Submission: 2026-08-30 06:22:17

GDB Scripting

Time of First Successful Submission: 2026-08-30 07:15:26

Modifying Data

Time of First Successful Submission: 2026-08-30 07:31:35

Modifying Execution

Time of First Successful Submission: 2026-08-30 07:33:14

Broken Functions

Time of First Successful Submission: 2026-08-30 08:00:01

Exit

Time of First Successful Submission: 2026-08-30 08:26:40

Socket

Time of First Successful Submission: 2026-08-30 10:21:53

Bind

Time of First Successful Submission: 2026-08-30 10:37:21

Listen

Time of First Successful Submission: 2026-08-30 10:41:31

Accept

Time of First Successful Submission: 2026-08-30 10:45:38

Static Response

Time of First Successful Submission: 2026-08-30 11:03:02

Dynamic Response

Time of First Successful Submission: 2026-08-30 20:40:50

Iterative GET Server

Time of First Successful Submission: 2026-08-30 20:43:56

Concurrent GET Server

Time of First Successful Submission: 2026-08-31 05:52:56

Concurrent POST Server

Time of First Successful Submission: 2026-08-31 07:25:27

Web Server

Time of First Successful Submission: 2026-08-31 08:30:41


Playing With Programs

116 / 116 1208 / 26295


What's the password?

Time of First Successful Submission: 2026-08-31 08:45:19

... and again!

Time of First Successful Submission: 2026-08-31 08:45:49

Newline Troubles

Time of First Successful Submission: 2026-08-31 08:50:05

Reasoning about files

Time of First Successful Submission: 2026-08-31 08:51:43

Specifying Filenames

Time of First Successful Submission: 2026-08-31 08:52:43

Binary and Hex Encoding

Time of First Successful Submission: 2026-08-31 09:03:10

More Hex

Time of First Successful Submission: 2026-08-31 09:05:14

Decoding Hex

Time of First Successful Submission: 2026-09-02 10:29:07

Decoding Practice

Time of First Successful Submission: 2026-09-02 10:33:16

Encoding Practice

Time of First Successful Submission: 2026-09-02 10:41:24

Hex-encoding ASCII

Time of First Successful Submission: 2026-09-02 11:00:16

Nested Encoding

Time of First Successful Submission: 2026-09-02 11:38:50

Hex-encoding UTF-8

Time of First Successful Submission: 2026-09-02 11:50:51

UTF Mixups

Time of First Successful Submission: 2026-09-02 12:03:15

Modifying Encoded Data

Time of First Successful Submission: 2026-09-02 12:21:15

Decoding Base64

Time of First Successful Submission: 2026-09-02 15:13:51

Encoding Base64

Time of First Successful Submission: 2026-09-02 15:17:27

Dealing with Obfuscation

Time of First Successful Submission: 2026-09-02 15:30:39

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-09-02 15:41:16

Your First HTTP Request

Time of First Successful Submission: 2026-09-02 15:47:04

Reading Flask

Time of First Successful Submission: 2026-09-02 15:48:10

Commented Data

Time of First Successful Submission: 2026-09-02 15:50:12

HTTP Metadata

Time of First Successful Submission: 2026-09-02 15:51:44

HTTP (netcat)

Time of First Successful Submission: 2026-09-02 16:00:56

HTTP Paths (netcat)

Time of First Successful Submission: 2026-09-02 16:03:51

HTTP (curl)

Time of First Successful Submission: 2026-09-02 16:11:13

HTTP (python)

Time of First Successful Submission: 2026-09-02 16:17:37

HTTP Host Header (python)

Time of First Successful Submission: 2026-09-02 16:34:07

HTTP Host Header (curl)

Time of First Successful Submission: 2026-09-02 16:35:47

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-09-02 16:38:27

URL Encoding (netcat)

Time of First Successful Submission: 2026-09-02 16:58:30

HTTP GET Parameters

Time of First Successful Submission: 2026-09-02 18:27:12

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-09-02 18:31:57

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-09-02 18:34:14

HTTP Forms

Time of First Successful Submission: 2026-09-02 18:37:16

HTTP Forms (curl)

Time of First Successful Submission: 2026-09-02 18:38:42

HTTP Forms (netcat)

Time of First Successful Submission: 2026-09-02 18:44:37

HTTP Forms (python)

Time of First Successful Submission: 2026-09-02 18:47:11

HTTP Forms Without Forms

Time of First Successful Submission: 2026-09-02 18:52:11

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-09-02 18:54:19

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-09-02 19:07:09

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-09-02 19:12:21

HTTP Redirects (curl)

Time of First Successful Submission: 2026-09-02 19:13:06

HTTP Redirects (python)

Time of First Successful Submission: 2026-09-02 19:15:18

HTTP Cookies (curl)

Time of First Successful Submission: 2026-09-02 19:24:01

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-09-02 19:29:08

HTTP Cookies (python)

Time of First Successful Submission: 2026-09-03 17:25:03

Server State (python)

Time of First Successful Submission: 2026-09-03 17:30:24

Listening Web

Time of First Successful Submission: 2026-09-03 17:34:35

Speaking Redirects

Time of First Successful Submission: 2026-09-03 17:42:26

JavaScript Redirects

Time of First Successful Submission: 2026-09-03 17:53:26

Including JavaScript

Time of First Successful Submission: 2026-09-03 18:20:48

HTTP (javascript)

Time of First Successful Submission: 2026-09-03 18:42:21

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-09-03 18:44:38

HTTP Forms (javascript)

Time of First Successful Submission: 2026-09-03 18:54:22

cat

Time of First Successful Submission: 2026-08-18 10:46:47

more

Time of First Successful Submission: 2026-08-18 10:46:20

less

Time of First Successful Submission: 2026-08-18 10:48:17

tail

Time of First Successful Submission: 2026-08-18 10:49:08

head

Time of First Successful Submission: 2026-08-18 10:49:35

sort

Time of First Successful Submission: 2026-08-18 10:50:06

vim

Time of First Successful Submission: 2026-08-18 10:50:48

emacs

Time of First Successful Submission: 2026-08-18 10:51:17

nano

Time of First Successful Submission: 2026-08-18 10:52:57

rev

Time of First Successful Submission: 2026-08-18 10:53:15

od

Time of First Successful Submission: 2026-08-18 11:05:08

hd

Time of First Successful Submission: 2026-08-18 11:15:17

xxd

Time of First Successful Submission: 2026-08-18 11:15:58

base32

Time of First Successful Submission: 2026-08-18 11:16:55

base64

Time of First Successful Submission: 2026-08-18 11:21:44

split

Time of First Successful Submission: 2026-08-18 11:26:13

gzip

Time of First Successful Submission: 2026-08-18 11:34:19

bzip2

Time of First Successful Submission: 2026-08-18 11:36:22

zip

Time of First Successful Submission: 2026-08-18 11:40:16

tar

Time of First Successful Submission: 2026-08-18 11:48:49

ar

Time of First Successful Submission: 2026-08-18 11:56:21

cpio

Time of First Successful Submission: 2026-08-18 12:02:35

genisoimage

Time of First Successful Submission: 2026-08-18 12:11:41

env

Time of First Successful Submission: 2026-08-18 12:16:12

find

Time of First Successful Submission: 2026-08-18 12:23:15

make

Time of First Successful Submission: 2026-08-18 12:26:01

nice

Time of First Successful Submission: 2026-08-18 12:27:49

timeout

Time of First Successful Submission: 2026-08-18 12:30:38

stdbuf

Time of First Successful Submission: 2026-08-18 12:32:17

setarch

Time of First Successful Submission: 2026-08-18 12:35:38

watch

Time of First Successful Submission: 2026-08-18 12:39:14

socat

Time of First Successful Submission: 2026-08-18 12:44:46

whiptail

Time of First Successful Submission: 2026-08-18 12:48:05

awk

Time of First Successful Submission: 2026-08-18 12:52:29

sed

Time of First Successful Submission: 2026-08-18 12:55:57

ed

Time of First Successful Submission: 2026-08-18 12:59:43

chown

Time of First Successful Submission: 2026-08-18 13:00:04

chmod

Time of First Successful Submission: 2026-08-18 13:00:27

cp

Time of First Successful Submission: 2026-08-18 13:10:03

mv

Time of First Successful Submission: 2026-08-18 13:15:37

perl

Time of First Successful Submission: 2026-08-18 13:23:59

python

Time of First Successful Submission: 2026-08-18 13:26:52

ruby

Time of First Successful Submission: 2026-08-18 13:28:47

bash

Time of First Successful Submission: 2026-08-18 13:31:43

date

Time of First Successful Submission: 2026-08-18 13:33:53

dmesg

Time of First Successful Submission: 2026-08-18 13:34:40

wc

Time of First Successful Submission: 2026-08-18 13:36:35

gcc

Time of First Successful Submission: 2026-08-18 13:39:14

as

Time of First Successful Submission: 2026-08-18 13:40:18

wget

Time of First Successful Submission: 2026-08-18 13:48:26

ssh-keygen

Time of First Successful Submission: 2026-09-04 04:22:42

SQL Queries

Time of First Successful Submission: 2026-09-03 18:55:51

Filtering SQL

Time of First Successful Submission: 2026-09-03 19:00:02

Choosing Columns

Time of First Successful Submission: 2026-09-03 19:00:56

Exclusionary Filtering

Time of First Successful Submission: 2026-09-03 19:04:39

Filtering Strings

Time of First Successful Submission: 2026-09-03 19:05:34

Filtering on Expressions

Time of First Successful Submission: 2026-09-03 19:09:45

SELECTing Expressions

Time of First Successful Submission: 2026-09-03 19:16:25

Composite Conditions

Time of First Successful Submission: 2026-09-03 19:19:05

Reaching Your LIMITs

Time of First Successful Submission: 2026-09-03 19:20:46

Querying Metadata

Time of First Successful Submission: 2026-09-03 19:29:22


DSU Cyber Camps

12 / 104 4638 / 65772


Using the Terminal

Time of First Successful Submission: 2026-08-19 20:47:44

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-19 20:55:38

Using the GUI Desktop

Time of First Successful Submission: 2026-08-19 20:57:08

Pasting into the Desktop

Time of First Successful Submission: 2026-08-19 21:01:04

Connecting over SSH

Time of First Successful Submission: 2026-08-19 21:02:09

Restarting Challenges

Time of First Successful Submission: 2026-08-19 21:04:20

Getting Help

Time of First Successful Submission: 2026-08-19 21:07:05

Challenge Programs

Time of First Successful Submission: 2026-08-19 21:09:44

The Flag File

Time of First Successful Submission: 2026-08-19 21:11:50

Using Privileged Mode

Time of First Successful Submission: 2026-08-19 21:13:54

Persistent Home Directories - One

Time of First Successful Submission: 2026-08-19 21:15:42

Persistent Home Directories - Two

Time of First Successful Submission: 2026-08-19 21:16:07


GCA CTF

12 / 104 4638 / 65772


Using the Terminal

Time of First Successful Submission: 2026-08-19 20:47:44

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-19 20:55:38

Using the GUI Desktop

Time of First Successful Submission: 2026-08-19 20:57:08

Pasting into the Desktop

Time of First Successful Submission: 2026-08-19 21:01:04

Connecting over SSH

Time of First Successful Submission: 2026-08-19 21:02:09

Restarting Challenges

Time of First Successful Submission: 2026-08-19 21:04:20

Getting Help

Time of First Successful Submission: 2026-08-19 21:07:05

Challenge Programs

Time of First Successful Submission: 2026-08-19 21:09:44

The Flag File

Time of First Successful Submission: 2026-08-19 21:11:50

Using Privileged Mode

Time of First Successful Submission: 2026-08-19 21:13:54

Persistent Home Directories - One

Time of First Successful Submission: 2026-08-19 21:15:42

Persistent Home Directories - Two

Time of First Successful Submission: 2026-08-19 21:16:07


Pwntools Tutorials

12 / 12 421 / 1429


Level 0.0

Time of First Successful Submission: 2026-09-18 04:35:48

Level 1.0

Time of First Successful Submission: 2026-09-18 04:53:03

Level 1.1

Time of First Successful Submission: 2026-09-18 04:58:44

Level 2.0

Time of First Successful Submission: 2026-09-18 05:49:12

Level 2.1

Time of First Successful Submission: 2026-09-18 05:52:34

Level 2.2

Time of First Successful Submission: 2026-09-18 05:56:34

Level 2.3

Time of First Successful Submission: 2026-09-18 06:00:51

Level 2.4

Time of First Successful Submission: 2026-09-18 06:03:27

Level 2.5

Time of First Successful Submission: 2026-09-18 06:10:13

Level 2.6

Time of First Successful Submission: 2026-09-18 06:16:37

Level 3.0

Time of First Successful Submission: 2026-09-18 06:40:05

Level 4.0

Time of First Successful Submission: 2026-09-18 06:55:59