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Intro to Programming Languages

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Commands

Time of First Successful Submission: 2026-05-16 08:51:27

Command Arguments

Time of First Successful Submission: 2026-05-16 08:51:54

Command History

Time of First Successful Submission: 2026-05-16 08:52:18

The Root Path

Time of First Successful Submission: 2026-05-16 08:53:14

Absolute Paths

Time of First Successful Submission: 2026-05-16 08:53:37

Changing position

Time of First Successful Submission: 2026-05-16 08:54:54

Changing to an Absolute Path

Time of First Successful Submission: 2026-05-16 08:55:58

Relative Paths

Time of First Successful Submission: 2026-05-16 08:58:08

Cat

Time of First Successful Submission: 2026-05-16 12:25:28

Ls

Time of First Successful Submission: 2026-05-16 12:29:32

Ls All

Time of First Successful Submission: 2026-05-16 12:35:16

Find

Time of First Successful Submission: 2026-05-16 12:54:27

Piping Echo

Time of First Successful Submission: 2026-05-17 03:44:35

Piping Stdout

Time of First Successful Submission: 2026-05-17 03:47:22

Piping Stdin

Time of First Successful Submission: 2026-05-17 03:51:19


Intro to Cybersecurity

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Path Traversal 1

Time of First Successful Submission: 2026-05-30 03:25:16

Path Traversal 2

Time of First Successful Submission: 2026-05-30 03:38:48

CMDi 1

Time of First Successful Submission: 2026-05-30 03:45:03

CMDi 2

Time of First Successful Submission: 2026-05-30 03:49:31

CMDi 3

Time of First Successful Submission: 2026-05-30 03:59:02

CMDi 4

Time of First Successful Submission: 2026-05-30 11:44:09

CMDi 5

Time of First Successful Submission: 2026-05-30 12:19:57

CMDi 6

Time of First Successful Submission: 2026-05-30 12:25:20

Authentication Bypass 1

Time of First Successful Submission: 2026-05-30 13:00:33

Authentication Bypass 2

Time of First Successful Submission: 2026-05-30 13:19:06

SQLi 1

Time of First Successful Submission: 2026-05-30 13:26:35

SQLi 2

Time of First Successful Submission: 2026-05-30 14:38:10

SQLi 3

Time of First Successful Submission: 2026-05-30 15:01:29

SQLi 4

Time of First Successful Submission: 2026-05-30 15:10:41

SQLi 5

Time of First Successful Submission: 2026-05-30 15:52:16

XSS 1

Time of First Successful Submission: 2026-05-30 20:23:46

XSS 2

Time of First Successful Submission: 2026-05-30 20:48:23

XSS 3

Time of First Successful Submission: 2026-05-30 20:52:07

XSS 4

Time of First Successful Submission: 2026-05-30 20:55:10

XSS 5

Time of First Successful Submission: 2026-05-30 21:17:16

XSS 6

Time of First Successful Submission: 2026-05-30 21:23:52

XSS 7

Time of First Successful Submission: 2026-05-30 23:38:04

CSRF 1

Time of First Successful Submission: 2026-05-31 10:33:06

CSRF 2

Time of First Successful Submission: 2026-05-31 10:55:32

CSRF 3

Time of First Successful Submission: 2026-05-31 11:16:55

CSRF 4

Time of First Successful Submission: 2026-05-31 11:28:53

CSRF 5

Time of First Successful Submission: 2026-05-31 11:54:19

Connect

Time of First Successful Submission: 2026-05-31 12:15:08

Send

Time of First Successful Submission: 2026-05-31 12:54:59

Shutdown

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Listen

Time of First Successful Submission: 2026-05-31 13:00:34

Scan 1

Time of First Successful Submission: 2026-05-31 13:29:17

Scan 2

Time of First Successful Submission: 2026-05-31 13:57:11

Monitor 1

Time of First Successful Submission: 2026-05-31 14:03:25

Monitor 2

Time of First Successful Submission: 2026-05-31 19:23:43

Sniffing Cookies

Time of First Successful Submission: 2026-05-31 19:34:17

Network Configuration

Time of First Successful Submission: 2026-05-31 20:15:34

Firewall 1

Time of First Successful Submission: 2026-05-31 20:38:30

Firewall 2

Time of First Successful Submission: 2026-05-31 20:55:32

Firewall 3

Time of First Successful Submission: 2026-05-31 20:56:51

Denial of Service 1

Time of First Successful Submission: 2026-05-31 21:01:52

Denial of Service 2

Time of First Successful Submission: 2026-05-31 21:09:21

Denial of Service 3

Time of First Successful Submission: 2026-05-31 22:16:32

Ethernet

Time of First Successful Submission: 2026-05-31 22:53:46

IP

Time of First Successful Submission: 2026-05-31 22:57:24

TCP

Time of First Successful Submission: 2026-05-31 23:01:18

TCP Handshake

Time of First Successful Submission: 2026-06-01 18:24:11

UDP

Time of First Successful Submission: 2026-06-01 19:33:58

UDP 2

Time of First Successful Submission: 2026-06-01 19:41:21

UDP Spoofing 1

Time of First Successful Submission: 2026-06-01 21:12:04

UDP Spoofing 2

Time of First Successful Submission: 2026-06-01 21:44:11

UDP Spoofing 3

Time of First Successful Submission: 2026-06-01 22:01:04

UDP Spoofing 4

Time of First Successful Submission: 2026-06-01 22:14:45

ARP

Time of First Successful Submission: 2026-06-01 22:34:11

Intercept

Time of First Successful Submission: 2026-06-01 22:47:57


Start Here

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Using the Terminal

Time of First Successful Submission: 2026-05-16 08:22:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-16 08:24:38

Using the GUI Desktop

Time of First Successful Submission: 2026-05-16 08:25:51

Pasting into the Desktop

Time of First Successful Submission: 2026-05-16 08:27:44

Restarting Challenges

Time of First Successful Submission: 2026-05-16 08:38:44

Challenge Programs

Time of First Successful Submission: 2026-05-16 08:41:49

The Flag File

Time of First Successful Submission: 2026-05-16 08:43:39

Using Privileged Mode

Time of First Successful Submission: 2026-05-16 08:45:34

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-16 08:47:13

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-16 08:47:45


Linux Luminarium

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Intro to Commands

Time of First Successful Submission: 2026-05-16 08:51:27

Intro to Arguments

Time of First Successful Submission: 2026-05-16 08:51:54

Command History

Time of First Successful Submission: 2026-05-16 08:52:18

The Root

Time of First Successful Submission: 2026-05-16 08:53:14

Program and absolute paths

Time of First Successful Submission: 2026-05-16 08:53:37

Position thy self

Time of First Successful Submission: 2026-05-16 08:54:54

Position elsewhere

Time of First Successful Submission: 2026-05-16 08:55:58

implicit relative paths, from /

Time of First Successful Submission: 2026-05-16 08:58:08

explicit relative paths, from /

Time of First Successful Submission: 2026-05-16 09:03:08

implicit relative path

Time of First Successful Submission: 2026-05-16 09:04:10

home sweet home

Time of First Successful Submission: 2026-05-16 09:05:17

cat: not the pet, but the command!

Time of First Successful Submission: 2026-05-16 12:25:28

catting absolute paths

Time of First Successful Submission: 2026-05-16 12:25:49

more catting practice

Time of First Successful Submission: 2026-05-16 12:26:29

grepping for a needle in a haystack

Time of First Successful Submission: 2026-05-16 12:27:13

comparing files

Time of First Successful Submission: 2026-05-16 12:28:38

listing files

Time of First Successful Submission: 2026-05-16 12:29:32

touching files

Time of First Successful Submission: 2026-05-16 12:30:37

removing files

Time of First Successful Submission: 2026-05-16 12:31:34

moving files

Time of First Successful Submission: 2026-05-16 12:33:22

copying files

Time of First Successful Submission: 2026-05-16 12:34:04

hidden files

Time of First Successful Submission: 2026-05-16 12:35:16

An Epic Filesystem Quest

Time of First Successful Submission: 2026-05-16 12:39:22

making directories

Time of First Successful Submission: 2026-05-16 12:40:03

finding files

Time of First Successful Submission: 2026-05-16 12:54:27

linking files

Time of First Successful Submission: 2026-05-16 12:57:59

Learning From Documentation

Time of First Successful Submission: 2026-05-16 13:00:52

Learning Complex Usage

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

Reading Manuals

Time of First Successful Submission: 2026-05-16 13:08:42

Searching Manuals

Time of First Successful Submission: 2026-05-16 13:09:36

Searching For Manuals

Time of First Successful Submission: 2026-05-16 13:13:41

Helpful Programs

Time of First Successful Submission: 2026-05-16 13:14:33

Help for Builtins

Time of First Successful Submission: 2026-05-16 13:15:50

Matching with *

Time of First Successful Submission: 2026-05-16 22:22:20

Matching with ?

Time of First Successful Submission: 2026-05-16 22:23:20

Matching with []

Time of First Successful Submission: 2026-05-17 01:18:14

Matching paths with []

Time of First Successful Submission: 2026-05-17 01:19:10

Multiple globs

Time of First Successful Submission: 2026-05-17 01:20:05

Mixing globs

Time of First Successful Submission: 2026-05-17 03:37:41

Exclusionary globbing

Time of First Successful Submission: 2026-05-17 03:38:49

Tab completion

Time of First Successful Submission: 2026-05-17 03:40:29

Multiple options for tab completion

Time of First Successful Submission: 2026-05-17 03:43:01

Tab completion on commands

Time of First Successful Submission: 2026-05-17 03:43:28

Redirecting output

Time of First Successful Submission: 2026-05-17 03:44:35

Redirecting more output

Time of First Successful Submission: 2026-05-17 03:47:22

Appending output

Time of First Successful Submission: 2026-05-17 03:48:48

Redirecting errors

Time of First Successful Submission: 2026-05-17 03:50:02

Redirecting input

Time of First Successful Submission: 2026-05-17 03:51:19

Grepping stored results

Time of First Successful Submission: 2026-05-17 03:52:42

Grepping live output

Time of First Successful Submission: 2026-05-17 03:53:56

Grepping errors

Time of First Successful Submission: 2026-05-17 04:02:01

Filtering with grep -v

Time of First Successful Submission: 2026-05-17 04:02:36

Filtering with sed

Time of First Successful Submission: 2026-05-17 04:03:54

Duplicating piped data with tee

Time of First Successful Submission: 2026-05-17 04:14:01

Process substitution for input

Time of First Successful Submission: 2026-05-17 04:17:11

Writing to multiple programs

Time of First Successful Submission: 2026-05-17 04:22:05

Split-piping stderr and stdout

Time of First Successful Submission: 2026-05-17 04:25:32

Named pipes

Time of First Successful Submission: 2026-05-17 04:31:11

Printing Variables

Time of First Successful Submission: 2026-05-18 23:29:13

Setting Variables

Time of First Successful Submission: 2026-05-18 23:29:41

Multi-word Variables

Time of First Successful Submission: 2026-05-18 23:30:14

Exporting Variables

Time of First Successful Submission: 2026-05-18 23:31:51

Printing Exported Variables

Time of First Successful Submission: 2026-05-18 23:32:15

Storing Command Output

Time of First Successful Submission: 2026-05-18 23:33:44

Reading Input

Time of First Successful Submission: 2026-05-18 23:34:14

Reading Files

Time of First Successful Submission: 2026-05-18 23:37:19

Translating characters

Time of First Successful Submission: 2026-05-18 23:40:00

Deleting characters

Time of First Successful Submission: 2026-05-18 23:40:44

Deleting newlines

Time of First Successful Submission: 2026-05-18 23:42:45

Extracting the first lines with head

Time of First Successful Submission: 2026-05-18 23:44:36

Extracting specific sections of text

Time of First Successful Submission: 2026-05-18 23:46:30

Sorting data

Time of First Successful Submission: 2026-05-18 23:47:10

Listing Processes

Time of First Successful Submission: 2026-05-18 23:49:47

Killing Processes

Time of First Successful Submission: 2026-05-18 23:50:48

Interrupting Processes

Time of First Successful Submission: 2026-05-18 23:51:14

Killing Misbehaving Processes

Time of First Successful Submission: 2026-05-18 23:55:43

Suspending Processes

Time of First Successful Submission: 2026-05-18 23:57:50

Resuming Processes

Time of First Successful Submission: 2026-05-18 23:58:36

Backgrounding Processes

Time of First Successful Submission: 2026-05-19 00:00:19

Foregrounding Processes

Time of First Successful Submission: 2026-05-19 00:01:12

Starting Backgrounded Processes

Time of First Successful Submission: 2026-05-19 00:02:37

Process Exit Codes

Time of First Successful Submission: 2026-05-19 00:03:13

Becoming root with su

Time of First Successful Submission: 2026-05-19 00:05:36

Other users with su

Time of First Successful Submission: 2026-05-19 00:06:10

Cracking passwords

Time of First Successful Submission: 2026-05-19 00:10:04

Using sudo

Time of First Successful Submission: 2026-05-19 00:11:15

Changing File Ownership

Time of First Successful Submission: 2026-05-19 00:12:45

Groups and Files

Time of First Successful Submission: 2026-05-19 00:13:34

Fun With Groups Names

Time of First Successful Submission: 2026-05-19 00:17:33

Changing Permissions

Time of First Successful Submission: 2026-05-19 00:19:04

Executable Files

Time of First Successful Submission: 2026-05-19 00:19:46

Permission Tweaking Practice

Time of First Successful Submission: 2026-05-19 00:28:51

Permissions Setting Practice

Time of First Successful Submission: 2026-05-19 00:34:14

The SUID Bit

Time of First Successful Submission: 2026-05-19 00:35:20

Chaining with Semicolons

Time of First Successful Submission: 2026-05-19 00:36:54

Building on Success

Time of First Successful Submission: 2026-05-19 00:37:27

Handling Failure

Time of First Successful Submission: 2026-05-19 00:38:05

Your First Shell Script

Time of First Successful Submission: 2026-05-19 00:40:23

Redirecting Script Output

Time of First Successful Submission: 2026-05-19 00:58:26

Executable Shell Scripts

Time of First Successful Submission: 2026-05-19 00:59:15

Understanding Shebangs

Time of First Successful Submission: 2026-05-19 01:01:21

Scripting with Arguments

Time of First Successful Submission: 2026-05-20 17:40:14

Scripting with Conditionals

Time of First Successful Submission: 2026-05-20 17:42:11

Scripting with Default Cases

Time of First Successful Submission: 2026-05-20 17:43:04

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-05-20 18:34:49

Reading Shell Scripts

Time of First Successful Submission: 2026-05-20 18:35:45

Launching Screen

Time of First Successful Submission: 2026-05-20 18:36:41

Detaching and Attaching

Time of First Successful Submission: 2026-05-20 18:38:18

Finding Sessions

Time of First Successful Submission: 2026-05-20 18:41:25

Switching Windows

Time of First Successful Submission: 2026-05-20 18:42:28

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-05-20 18:43:14

Switching Windows (tmux)

Time of First Successful Submission: 2026-05-20 18:43:48

The PATH Variable

Time of First Successful Submission: 2026-05-20 18:45:14

Setting PATH

Time of First Successful Submission: 2026-05-20 18:47:11

Finding Commands

Time of First Successful Submission: 2026-05-20 18:52:58

Adding Commands

Time of First Successful Submission: 2026-05-20 18:59:59

Hijacking Commands

Time of First Successful Submission: 2026-05-20 21:19:45

Bashrc Backdoor

Time of First Successful Submission: 2026-05-20 21:23:23

Sniffing Input

Time of First Successful Submission: 2026-05-20 21:31:27

Overshared Directories

Time of First Successful Submission: 2026-05-20 21:33:58

Tricky Linking

Time of First Successful Submission: 2026-05-20 21:38:35

Sniffing Process Arguments

Time of First Successful Submission: 2026-05-20 21:39:37

Snooping on Configurations

Time of First Successful Submission: 2026-05-20 21:41:14

The Fork Bomb

Time of First Successful Submission: 2026-05-20 21:50:12

Disk-Space Doomsday

Time of First Successful Submission: 2026-05-20 21:51:56

rm -rf /

Time of First Successful Submission: 2026-05-20 22:08:08

Life after rm -rf /

Time of First Successful Submission: 2026-05-20 22:01:53

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-05-20 22:06:57


Computing 101

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Your First Register

Time of First Successful Submission: 2026-05-20 22:14:19

Your First Syscall

Time of First Successful Submission: 2026-05-20 22:16:20

Exit Codes

Time of First Successful Submission: 2026-05-20 22:19:15

Building Executables

Time of First Successful Submission: 2026-05-20 22:24:43

Moving Between Registers

Time of First Successful Submission: 2026-05-20 22:27:41

Loading From Memory

Time of First Successful Submission: 2026-05-21 20:55:47

More Loading Practice

Time of First Successful Submission: 2026-05-21 20:58:00

Dereferencing Pointers

Time of First Successful Submission: 2026-05-21 21:01:26

Dereferencing Yourself

Time of First Successful Submission: 2026-05-21 21:06:18

Dereferencing with Offsets

Time of First Successful Submission: 2026-05-21 21:14:58

Stored Addresses

Time of First Successful Submission: 2026-05-21 21:20:37

Double Dereference

Time of First Successful Submission: 2026-05-21 21:25:39

The Stack

Time of First Successful Submission: 2026-05-21 21:28:44

Stack Offsets

Time of First Successful Submission: 2026-05-21 21:29:48

Program Arguments on the Stack

Time of First Successful Submission: 2026-05-21 21:31:23

Popping From the Stack

Time of First Successful Submission: 2026-05-21 21:33:28

Disassembling Programs

Time of First Successful Submission: 2026-05-21 21:35:37

Tracing Syscalls

Time of First Successful Submission: 2026-05-21 21:37:49

Starting GDB

Time of First Successful Submission: 2026-05-21 21:38:26

Quitting GDB

Time of First Successful Submission: 2026-05-21 21:39:50

Starting Programs in GDB

Time of First Successful Submission: 2026-05-21 21:40:54

Disassembling in GDB

Time of First Successful Submission: 2026-05-21 21:41:57

Stepping Through Instructions

Time of First Successful Submission: 2026-05-21 21:43:37

Reading Register Values

Time of First Successful Submission: 2026-05-21 21:44:40

Popping Stack Values

Time of First Successful Submission: 2026-05-21 21:45:45

Examining Memory

Time of First Successful Submission: 2026-05-21 21:47:21

Examining Stack Pointers

Time of First Successful Submission: 2026-05-21 21:48:49

Cooperative Debugging

Time of First Successful Submission: 2026-05-21 21:55:27

Writing Output

Time of First Successful Submission: 2026-05-21 22:04:06

Chaining Syscalls

Time of First Successful Submission: 2026-05-21 22:05:07

Writing Strings

Time of First Successful Submission: 2026-05-21 22:06:22

Reading Data

Time of First Successful Submission: 2026-05-21 22:11:26

Opening Files

Time of First Successful Submission: 2026-05-21 22:17:17

Hardcoding the Filename

Time of First Successful Submission: 2026-05-21 22:21:43

Comparing Values

Time of First Successful Submission: 2026-05-22 10:22:26

Comparing Characters

Time of First Successful Submission: 2026-05-22 10:33:24

Conditional Control Flow

Time of First Successful Submission: 2026-05-22 10:40:24

Comparing Strings

Time of First Successful Submission: 2026-05-22 11:13:07

Reverse the Password

Time of First Successful Submission: 2026-05-22 11:25:44

Conditionals Without Conditionals

Time of First Successful Submission: 2026-05-22 11:57:05

Looping

Time of First Successful Submission: 2026-05-22 12:33:06

Reverse the Calculation

Time of First Successful Submission: 2026-05-22 12:39:01

Reverse the Reverse

Time of First Successful Submission: 2026-05-22 12:40:06

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-05-22 12:48:05

Loops on Data

Time of First Successful Submission: 2026-05-22 12:50:54

set-register

Time of First Successful Submission: 2026-05-22 12:59:09

set-multiple-registers

Time of First Successful Submission: 2026-05-22 13:01:16

add-to-register

Time of First Successful Submission: 2026-05-22 13:02:10

linear-equation-registers

Time of First Successful Submission: 2026-05-22 13:05:44

integer-division

Time of First Successful Submission: 2026-05-22 13:09:34

modulo-operation

Time of First Successful Submission: 2026-05-22 18:27:50

set-upper-byte

Time of First Successful Submission: 2026-05-22 18:28:55

efficient-modulo

Time of First Successful Submission: 2026-05-22 18:45:22

byte-extraction

Time of First Successful Submission: 2026-05-22 19:03:42

bitwise-and

Time of First Successful Submission: 2026-05-22 19:05:49

check-even

Time of First Successful Submission: 2026-05-22 19:19:05

memory-read

Time of First Successful Submission: 2026-05-22 20:23:10

memory-write

Time of First Successful Submission: 2026-05-22 21:38:33

memory-increment

Time of First Successful Submission: 2026-05-22 21:41:55

byte-access

Time of First Successful Submission: 2026-05-22 21:44:17

memory-size-access

Time of First Successful Submission: 2026-05-22 21:46:36

little-endian-write

Time of First Successful Submission: 2026-05-22 22:07:06

memory-sum

Time of First Successful Submission: 2026-05-22 22:03:00

stack-subtraction

Time of First Successful Submission: 2026-05-22 22:04:12

swap-stack-values

Time of First Successful Submission: 2026-05-22 22:08:40

average-stack-values

Time of First Successful Submission: 2026-05-23 08:10:59

absolute-jump

Time of First Successful Submission: 2026-05-23 08:12:25

relative-jump

Time of First Successful Submission: 2026-05-23 08:31:08

jump-trampoline

Time of First Successful Submission: 2026-05-23 08:36:56

conditional-jump

Time of First Successful Submission: 2026-05-23 09:12:53

indirect-jump

Time of First Successful Submission: 2026-05-23 10:21:37

average-loop

Time of First Successful Submission: 2026-05-23 10:48:14

count-non-zero

Time of First Successful Submission: 2026-05-23 10:56:15

string-lower

Time of First Successful Submission: 2026-05-23 12:32:39

most-common-byte

Time of First Successful Submission: 2026-05-23 14:05:42

Exit

Time of First Successful Submission: 2026-05-23 14:18:56

Socket

Time of First Successful Submission: 2026-05-23 14:49:41

Bind

Time of First Successful Submission: 2026-05-23 15:33:30

Listen

Time of First Successful Submission: 2026-05-23 15:45:55

Accept

Time of First Successful Submission: 2026-05-23 15:51:23

Static Response

Time of First Successful Submission: 2026-05-23 18:02:57

Dynamic Response

Time of First Successful Submission: 2026-05-24 07:30:03

Iterative GET Server

Time of First Successful Submission: 2026-05-24 09:49:46

Concurrent GET Server

Time of First Successful Submission: 2026-05-24 10:42:35

Concurrent POST Server

Time of First Successful Submission: 2026-05-24 13:13:18

Web Server

Time of First Successful Submission: 2026-05-24 13:14:16

Debugging Programs

Time of First Successful Submission: 2026-05-24 13:19:57

Inspecting Registers

Time of First Successful Submission: 2026-05-24 13:22:08

Examining Memory

Time of First Successful Submission: 2026-05-24 13:47:18

Setting Breakpoints

Time of First Successful Submission: 2026-05-25 14:38:08

GDB Scripting

Time of First Successful Submission: 2026-05-25 16:00:56

Modifying Data

Time of First Successful Submission: 2026-05-25 16:21:02

Modifying Execution

Time of First Successful Submission: 2026-05-25 16:27:00

Broken Functions

Time of First Successful Submission: 2026-05-25 17:04:02


Playing With Programs

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What's the password?

Time of First Successful Submission: 2026-05-25 17:07:31

... and again!

Time of First Successful Submission: 2026-05-25 17:08:14

Newline Troubles

Time of First Successful Submission: 2026-05-25 17:17:45

Reasoning about files

Time of First Successful Submission: 2026-05-25 17:19:14

Specifying Filenames

Time of First Successful Submission: 2026-05-25 17:20:33

Binary and Hex Encoding

Time of First Successful Submission: 2026-05-25 18:12:50

More Hex

Time of First Successful Submission: 2026-05-25 18:15:17

Decoding Hex

Time of First Successful Submission: 2026-05-25 18:19:33

Decoding Practice

Time of First Successful Submission: 2026-05-25 18:33:18

Encoding Practice

Time of First Successful Submission: 2026-05-25 18:41:41

Hex-encoding ASCII

Time of First Successful Submission: 2026-05-25 18:51:06

Nested Encoding

Time of First Successful Submission: 2026-05-25 18:56:10

Hex-encoding UTF-8

Time of First Successful Submission: 2026-05-25 20:12:36

UTF Mixups

Time of First Successful Submission: 2026-05-25 20:24:57

Modifying Encoded Data

Time of First Successful Submission: 2026-05-25 20:43:33

Decoding Base64

Time of First Successful Submission: 2026-05-25 20:55:50

Encoding Base64

Time of First Successful Submission: 2026-05-25 21:04:36

Dealing with Obfuscation

Time of First Successful Submission: 2026-05-26 21:41:16

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-05-26 22:18:01

Your First HTTP Request

Time of First Successful Submission: 2026-05-26 22:28:00

Reading Flask

Time of First Successful Submission: 2026-05-26 22:30:17

Commented Data

Time of First Successful Submission: 2026-05-26 22:32:28

HTTP Metadata

Time of First Successful Submission: 2026-05-26 22:34:28

HTTP (netcat)

Time of First Successful Submission: 2026-05-26 22:47:10

HTTP Paths (netcat)

Time of First Successful Submission: 2026-05-26 22:50:29

HTTP (curl)

Time of First Successful Submission: 2026-05-26 22:52:04

HTTP (python)

Time of First Successful Submission: 2026-05-26 22:55:29

HTTP Host Header (python)

Time of First Successful Submission: 2026-05-26 23:00:18

HTTP Host Header (curl)

Time of First Successful Submission: 2026-05-26 23:03:10

HTTP Host Header (netcat)

Time of First Successful Submission: 2026-05-26 23:18:37

URL Encoding (netcat)

Time of First Successful Submission: 2026-05-26 23:32:47

HTTP GET Parameters

Time of First Successful Submission: 2026-05-26 23:36:00

Multiple HTTP Parameters (netcat)

Time of First Successful Submission: 2026-05-26 23:39:39

Multiple HTTP Parameters (curl)

Time of First Successful Submission: 2026-05-26 23:41:53

HTTP Forms

Time of First Successful Submission: 2026-05-27 10:11:05

HTTP Forms (curl)

Time of First Successful Submission: 2026-05-27 10:30:56

HTTP Forms (netcat)

Time of First Successful Submission: 2026-05-27 10:55:49

HTTP Forms (python)

Time of First Successful Submission: 2026-05-27 10:59:26

HTTP Forms Without Forms

Time of First Successful Submission: 2026-05-27 11:06:30

Multiple Form Fields (curl)

Time of First Successful Submission: 2026-05-27 22:42:00

Multiple Form Fields (netcat)

Time of First Successful Submission: 2026-05-27 23:03:08

HTTP Redirects (netcat)

Time of First Successful Submission: 2026-05-27 23:06:13

HTTP Redirects (curl)

Time of First Successful Submission: 2026-05-27 23:07:20

HTTP Redirects (python)

Time of First Successful Submission: 2026-05-27 23:09:53

HTTP Cookies (curl)

Time of First Successful Submission: 2026-05-27 23:21:55

HTTP Cookies (netcat)

Time of First Successful Submission: 2026-05-27 23:24:11

HTTP Cookies (python)

Time of First Successful Submission: 2026-05-27 23:28:30

Server State (python)

Time of First Successful Submission: 2026-05-28 10:13:12

Listening Web

Time of First Successful Submission: 2026-05-28 10:16:34

Speaking Redirects

Time of First Successful Submission: 2026-05-28 10:30:59

JavaScript Redirects

Time of First Successful Submission: 2026-05-28 10:51:14

Including JavaScript

Time of First Successful Submission: 2026-05-28 23:50:02

HTTP (javascript)

Time of First Successful Submission: 2026-05-29 00:04:30

HTTP Get Parameters (javascript)

Time of First Successful Submission: 2026-05-29 00:10:18

HTTP Forms (javascript)

Time of First Successful Submission: 2026-05-29 00:22:35

cat

Time of First Successful Submission: 2026-05-29 00:24:24

more

Time of First Successful Submission: 2026-05-29 00:24:41

less

Time of First Successful Submission: 2026-05-29 00:25:02

tail

Time of First Successful Submission: 2026-05-29 00:25:19

head

Time of First Successful Submission: 2026-05-29 00:25:37

sort

Time of First Successful Submission: 2026-05-29 00:25:55

vim

Time of First Successful Submission: 2026-05-29 00:26:42

emacs

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nano

Time of First Successful Submission: 2026-05-29 00:28:31

rev

Time of First Successful Submission: 2026-05-29 00:29:09

od

Time of First Successful Submission: 2026-05-29 00:33:44

hd

Time of First Successful Submission: 2026-05-29 00:37:34

xxd

Time of First Successful Submission: 2026-05-29 00:40:29

base32

Time of First Successful Submission: 2026-05-29 00:41:13

base64

Time of First Successful Submission: 2026-05-29 00:41:50

split

Time of First Successful Submission: 2026-05-29 00:42:59

gzip

Time of First Successful Submission: 2026-05-29 00:44:12

bzip2

Time of First Successful Submission: 2026-05-29 00:46:19

zip

Time of First Successful Submission: 2026-05-29 00:53:33

tar

Time of First Successful Submission: 2026-05-29 00:56:13

ar

Time of First Successful Submission: 2026-05-29 10:54:05

cpio

Time of First Successful Submission: 2026-05-29 11:01:32

genisoimage

Time of First Successful Submission: 2026-05-29 11:27:16

env

Time of First Successful Submission: 2026-05-29 11:56:11

find

Time of First Successful Submission: 2026-05-29 12:08:50

make

Time of First Successful Submission: 2026-05-29 12:16:45

nice

Time of First Successful Submission: 2026-05-29 12:17:16

timeout

Time of First Successful Submission: 2026-05-29 12:18:15

stdbuf

Time of First Successful Submission: 2026-05-29 12:20:26

setarch

Time of First Successful Submission: 2026-05-29 12:22:36

watch

Time of First Successful Submission: 2026-05-29 12:24:15

socat

Time of First Successful Submission: 2026-05-29 12:35:04

whiptail

Time of First Successful Submission: 2026-05-29 13:00:03

awk

Time of First Successful Submission: 2026-05-29 13:04:51

sed

Time of First Successful Submission: 2026-05-29 16:51:47

ed

Time of First Successful Submission: 2026-05-29 16:53:46

chown

Time of First Successful Submission: 2026-05-29 16:54:19

chmod

Time of First Successful Submission: 2026-05-29 16:54:46

cp

Time of First Successful Submission: 2026-05-29 16:55:18

mv

Time of First Successful Submission: 2026-05-29 17:03:34

perl

Time of First Successful Submission: 2026-05-29 17:17:30

python

Time of First Successful Submission: 2026-05-29 17:23:21

ruby

Time of First Successful Submission: 2026-05-29 17:25:39

bash

Time of First Successful Submission: 2026-05-29 17:33:35

date

Time of First Successful Submission: 2026-05-29 17:34:30

dmesg

Time of First Successful Submission: 2026-05-29 17:35:13

wc

Time of First Successful Submission: 2026-05-29 17:37:21

gcc

Time of First Successful Submission: 2026-05-29 17:42:03

as

Time of First Successful Submission: 2026-05-29 17:42:50

wget

Time of First Successful Submission: 2026-05-29 18:55:54

ssh-keygen

Time of First Successful Submission: 2026-05-29 19:36:54

SQL Queries

Time of First Successful Submission: 2026-05-29 19:40:10

Filtering SQL

Time of First Successful Submission: 2026-05-29 22:38:37

Choosing Columns

Time of First Successful Submission: 2026-05-29 22:42:03

Exclusionary Filtering

Time of First Successful Submission: 2026-05-29 22:45:11

Filtering Strings

Time of First Successful Submission: 2026-05-29 22:46:30

Filtering on Expressions

Time of First Successful Submission: 2026-05-29 22:49:57

SELECTing Expressions

Time of First Successful Submission: 2026-05-29 22:57:39

Composite Conditions

Time of First Successful Submission: 2026-05-29 23:00:18

Reaching Your LIMITs

Time of First Successful Submission: 2026-05-29 23:02:09

Querying Metadata

Time of First Successful Submission: 2026-05-29 23:05:02


DSU Cyber Camps

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Using the Terminal

Time of First Successful Submission: 2026-05-16 08:22:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-16 08:24:38

Using the GUI Desktop

Time of First Successful Submission: 2026-05-16 08:25:51

Pasting into the Desktop

Time of First Successful Submission: 2026-05-16 08:27:44

Connecting over SSH

Time of First Successful Submission: 2026-05-16 08:37:06

Restarting Challenges

Time of First Successful Submission: 2026-05-16 08:38:44

Getting Help

Time of First Successful Submission: 2026-05-16 08:40:14

Challenge Programs

Time of First Successful Submission: 2026-05-16 08:41:49

The Flag File

Time of First Successful Submission: 2026-05-16 08:43:39

Using Privileged Mode

Time of First Successful Submission: 2026-05-16 08:45:34

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-16 08:47:13

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-16 08:47:45


GCA CTF

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Using the Terminal

Time of First Successful Submission: 2026-05-16 08:22:20

Using the VSCode Workspace

Time of First Successful Submission: 2026-05-16 08:24:38

Using the GUI Desktop

Time of First Successful Submission: 2026-05-16 08:25:51

Pasting into the Desktop

Time of First Successful Submission: 2026-05-16 08:27:44

Connecting over SSH

Time of First Successful Submission: 2026-05-16 08:37:06

Restarting Challenges

Time of First Successful Submission: 2026-05-16 08:38:44

Getting Help

Time of First Successful Submission: 2026-05-16 08:40:14

Challenge Programs

Time of First Successful Submission: 2026-05-16 08:41:49

The Flag File

Time of First Successful Submission: 2026-05-16 08:43:39

Using Privileged Mode

Time of First Successful Submission: 2026-05-16 08:45:34

Persistent Home Directories - One

Time of First Successful Submission: 2026-05-16 08:47:13

Persistent Home Directories - Two

Time of First Successful Submission: 2026-05-16 08:47:45