buf7er_0vf

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Belarus

Intro to Programming Languages

15 / 253 14271 / 47084


Commands

Time of First Successful Submission: 2026-08-19 12:37:25

Command Arguments

Time of First Successful Submission: 2026-08-19 12:37:57

Command History

Time of First Successful Submission: 2026-08-19 12:38:18

The Root Path

Time of First Successful Submission: 2026-08-20 14:51:02

Absolute Paths

Time of First Successful Submission: 2026-08-20 14:54:58

Changing position

Time of First Successful Submission: 2026-08-20 14:59:53

Changing to an Absolute Path

Time of First Successful Submission: 2026-08-20 15:09:07

Relative Paths

Time of First Successful Submission: 2026-08-20 15:12:29

Cat

Time of First Successful Submission: 2026-08-21 17:58:11

Ls

Time of First Successful Submission: 2026-08-21 18:47:32

Ls All

Time of First Successful Submission: 2026-08-21 18:52:34

Find

Time of First Successful Submission: 2026-08-21 19:09:06

Piping Echo

Time of First Successful Submission: 2026-08-29 15:28:06

Piping Stdout

Time of First Successful Submission: 2026-08-29 15:34:00

Piping Stdin

Time of First Successful Submission: 2026-08-29 15:48:07


Start Here

10 / 10 14994 / 65156


Using the Terminal

Time of First Successful Submission: 2026-08-05 11:39:16

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-05 11:45:08

Using the GUI Desktop

Time of First Successful Submission: 2026-08-05 11:49:57

Pasting into the Desktop

Time of First Successful Submission: 2026-08-05 11:52:07

Restarting Challenges

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

Challenge Programs

Time of First Successful Submission: 2026-08-05 12:40:33

The Flag File

Time of First Successful Submission: 2026-08-05 12:43:00

Using Privileged Mode

Time of First Successful Submission: 2026-08-05 12:53:58

Persistent Home Directories - One

Time of First Successful Submission: 2026-08-05 16:12:58

Persistent Home Directories - Two

Time of First Successful Submission: 2026-08-05 16:14:20


Linux Luminarium

128 / 128 5300 / 47741


Intro to Commands

Time of First Successful Submission: 2026-08-19 12:37:25

Intro to Arguments

Time of First Successful Submission: 2026-08-19 12:37:57

Command History

Time of First Successful Submission: 2026-08-19 12:38:18

The Root

Time of First Successful Submission: 2026-08-20 14:51:02

Program and absolute paths

Time of First Successful Submission: 2026-08-20 14:54:58

Position thy self

Time of First Successful Submission: 2026-08-20 14:59:53

Position elsewhere

Time of First Successful Submission: 2026-08-20 15:09:07

implicit relative paths, from /

Time of First Successful Submission: 2026-08-20 15:12:29

explicit relative paths, from /

Time of First Successful Submission: 2026-08-20 18:02:17

implicit relative path

Time of First Successful Submission: 2026-08-20 18:03:49

home sweet home

Time of First Successful Submission: 2026-08-20 18:06:30

cat: not the pet, but the command!

Time of First Successful Submission: 2026-08-21 17:58:11

catting absolute paths

Time of First Successful Submission: 2026-08-21 17:58:47

more catting practice

Time of First Successful Submission: 2026-08-21 18:38:08

grepping for a needle in a haystack

Time of First Successful Submission: 2026-08-21 18:41:22

comparing files

Time of First Successful Submission: 2026-08-21 18:43:54

listing files

Time of First Successful Submission: 2026-08-21 18:47:32

touching files

Time of First Successful Submission: 2026-08-21 18:48:38

removing files

Time of First Successful Submission: 2026-08-21 18:49:12

moving files

Time of First Successful Submission: 2026-08-21 18:50:36

copying files

Time of First Successful Submission: 2026-08-21 18:51:56

hidden files

Time of First Successful Submission: 2026-08-21 18:52:34

An Epic Filesystem Quest

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

making directories

Time of First Successful Submission: 2026-08-21 19:03:42

finding files

Time of First Successful Submission: 2026-08-21 19:09:06

linking files

Time of First Successful Submission: 2026-08-21 19:29:56

Learning From Documentation

Time of First Successful Submission: 2026-08-22 09:47:35

Learning Complex Usage

Time of First Successful Submission: 2026-08-22 09:54:17

Reading Manuals

Time of First Successful Submission: 2026-08-22 09:56:22

Searching Manuals

Time of First Successful Submission: 2026-08-22 09:57:56

Searching For Manuals

Time of First Successful Submission: 2026-08-22 10:04:05

Helpful Programs

Time of First Successful Submission: 2026-08-22 10:10:46

Help for Builtins

Time of First Successful Submission: 2026-08-22 10:12:45

Matching with *

Time of First Successful Submission: 2026-08-25 11:37:40

Matching with ?

Time of First Successful Submission: 2026-08-25 11:42:55

Matching with []

Time of First Successful Submission: 2026-08-25 11:46:31

Matching paths with []

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

Multiple globs

Time of First Successful Submission: 2026-08-25 11:57:00

Mixing globs

Time of First Successful Submission: 2026-08-25 13:08:36

Exclusionary globbing

Time of First Successful Submission: 2026-08-25 14:29:29

Tab completion

Time of First Successful Submission: 2026-08-25 14:30:18

Multiple options for tab completion

Time of First Successful Submission: 2026-08-25 14:38:49

Tab completion on commands

Time of First Successful Submission: 2026-08-25 15:13:14

Redirecting output

Time of First Successful Submission: 2026-08-29 15:28:06

Redirecting more output

Time of First Successful Submission: 2026-08-29 15:34:00

Appending output

Time of First Successful Submission: 2026-08-29 15:36:03

Redirecting errors

Time of First Successful Submission: 2026-08-29 15:42:50

Redirecting input

Time of First Successful Submission: 2026-08-29 15:48:07

Grepping stored results

Time of First Successful Submission: 2026-08-29 15:54:16

Grepping live output

Time of First Successful Submission: 2026-08-29 18:26:06

Grepping errors

Time of First Successful Submission: 2026-08-29 18:31:07

Filtering with grep -v

Time of First Successful Submission: 2026-08-29 18:32:57

Filtering with sed

Time of First Successful Submission: 2026-08-29 18:35:52

Duplicating piped data with tee

Time of First Successful Submission: 2026-08-29 18:40:42

Process substitution for input

Time of First Successful Submission: 2026-08-29 18:48:51

Writing to multiple programs

Time of First Successful Submission: 2026-08-29 18:55:29

Split-piping stderr and stdout

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

Named pipes

Time of First Successful Submission: 2026-08-29 19:05:46

Printing Variables

Time of First Successful Submission: 2026-09-03 16:27:29

Setting Variables

Time of First Successful Submission: 2026-09-03 16:38:21

Multi-word Variables

Time of First Successful Submission: 2026-09-03 16:39:27

Exporting Variables

Time of First Successful Submission: 2026-09-03 16:42:57

Printing Exported Variables

Time of First Successful Submission: 2026-09-03 16:47:04

Storing Command Output

Time of First Successful Submission: 2026-09-03 16:49:03

Reading Input

Time of First Successful Submission: 2026-09-03 16:50:29

Reading Files

Time of First Successful Submission: 2026-09-03 16:51:39

Translating characters

Time of First Successful Submission: 2026-09-03 18:33:46

Deleting characters

Time of First Successful Submission: 2026-09-03 18:34:41

Deleting newlines

Time of First Successful Submission: 2026-09-03 18:36:16

Extracting the first lines with head

Time of First Successful Submission: 2026-09-03 18:40:28

Extracting specific sections of text

Time of First Successful Submission: 2026-09-03 18:43:43

Sorting data

Time of First Successful Submission: 2026-09-03 18:45:50

Listing Processes

Time of First Successful Submission: 2026-09-04 09:08:37

Killing Processes

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

Interrupting Processes

Time of First Successful Submission: 2026-09-04 09:10:35

Killing Misbehaving Processes

Time of First Successful Submission: 2026-09-04 09:12:36

Suspending Processes

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

Resuming Processes

Time of First Successful Submission: 2026-09-04 09:14:18

Backgrounding Processes

Time of First Successful Submission: 2026-09-04 09:16:13

Foregrounding Processes

Time of First Successful Submission: 2026-09-04 09:16:56

Starting Backgrounded Processes

Time of First Successful Submission: 2026-09-04 09:17:25

Process Exit Codes

Time of First Successful Submission: 2026-09-04 09:21:33

Becoming root with su

Time of First Successful Submission: 2026-09-04 10:55:16

Other users with su

Time of First Successful Submission: 2026-09-04 12:34:30

Cracking passwords

Time of First Successful Submission: 2026-09-04 12:56:50

Using sudo

Time of First Successful Submission: 2026-09-04 13:02:57

Changing File Ownership

Time of First Successful Submission: 2026-09-07 12:30:36

Groups and Files

Time of First Successful Submission: 2026-09-07 12:34:26

Fun With Groups Names

Time of First Successful Submission: 2026-09-07 12:35:45

Changing Permissions

Time of First Successful Submission: 2026-09-07 12:38:44

Executable Files

Time of First Successful Submission: 2026-09-07 12:39:52

Permission Tweaking Practice

Time of First Successful Submission: 2026-09-07 13:29:38

Permissions Setting Practice

Time of First Successful Submission: 2026-09-07 13:35:07

The SUID Bit

Time of First Successful Submission: 2026-09-07 13:37:01

Chaining with Semicolons

Time of First Successful Submission: 2026-09-07 13:50:40

Building on Success

Time of First Successful Submission: 2026-09-07 13:51:50

Handling Failure

Time of First Successful Submission: 2026-09-07 13:52:34

Your First Shell Script

Time of First Successful Submission: 2026-09-07 13:54:22

Redirecting Script Output

Time of First Successful Submission: 2026-09-07 16:36:41

Executable Shell Scripts

Time of First Successful Submission: 2026-09-07 16:49:04

Understanding Shebangs

Time of First Successful Submission: 2026-09-07 16:53:19

Scripting with Arguments

Time of First Successful Submission: 2026-09-07 16:56:03

Scripting with Conditionals

Time of First Successful Submission: 2026-09-07 17:00:03

Scripting with Default Cases

Time of First Successful Submission: 2026-09-07 17:24:13

Scripting with Multiple Conditions

Time of First Successful Submission: 2026-09-07 17:30:54

Reading Shell Scripts

Time of First Successful Submission: 2026-09-07 17:31:48

Launching Screen

Time of First Successful Submission: 2026-09-07 17:56:03

Detaching and Attaching

Time of First Successful Submission: 2026-09-07 18:00:07

Finding Sessions

Time of First Successful Submission: 2026-09-07 18:02:29

Switching Windows

Time of First Successful Submission: 2026-09-07 18:04:18

Detaching and Attaching (tmux)

Time of First Successful Submission: 2026-09-07 18:42:00

Switching Windows (tmux)

Time of First Successful Submission: 2026-09-07 18:43:03

The PATH Variable

Time of First Successful Submission: 2026-09-08 13:42:42

Setting PATH

Time of First Successful Submission: 2026-09-08 13:49:18

Finding Commands

Time of First Successful Submission: 2026-09-08 13:53:58

Adding Commands

Time of First Successful Submission: 2026-09-08 14:07:50

Hijacking Commands

Time of First Successful Submission: 2026-09-08 15:03:45

Bashrc Backdoor

Time of First Successful Submission: 2026-09-08 17:09:00

Sniffing Input

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

Overshared Directories

Time of First Successful Submission: 2026-09-09 09:45:32

Tricky Linking

Time of First Successful Submission: 2026-09-09 11:07:52

Sniffing Process Arguments

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

Snooping on Configurations

Time of First Successful Submission: 2026-09-09 11:13:26

The Fork Bomb

Time of First Successful Submission: 2026-09-09 12:56:11

Disk-Space Doomsday

Time of First Successful Submission: 2026-09-09 12:58:44

rm -rf /

Time of First Successful Submission: 2026-09-09 14:57:50

Life after rm -rf /

Time of First Successful Submission: 2026-09-09 15:04:16

Finding meaning after rm -rf /

Time of First Successful Submission: 2026-09-09 15:08:37


Computing 101

76 / 132 1170 / 23305


Your First Register

Time of First Successful Submission: 2026-08-24 07:01:24

Your First Syscall

Time of First Successful Submission: 2026-08-24 13:26:11

Exit Codes

Time of First Successful Submission: 2026-08-24 13:27:53

Building Executables

Time of First Successful Submission: 2026-08-24 17:39:25

Moving Between Registers

Time of First Successful Submission: 2026-08-24 17:43:50

Loading From Memory

Time of First Successful Submission: 2026-08-25 17:25:50

More Loading Practice

Time of First Successful Submission: 2026-08-25 17:29:28

Dereferencing Pointers

Time of First Successful Submission: 2026-08-25 18:00:48

Dereferencing Yourself

Time of First Successful Submission: 2026-08-25 18:03:07

Dereferencing with Offsets

Time of First Successful Submission: 2026-08-25 18:07:28

Stored Addresses

Time of First Successful Submission: 2026-08-25 18:11:41

Double Dereference

Time of First Successful Submission: 2026-08-25 18:14:37

The Stack

Time of First Successful Submission: 2026-09-10 08:38:08

Stack Offsets

Time of First Successful Submission: 2026-09-10 08:46:41

Program Arguments on the Stack

Time of First Successful Submission: 2026-09-10 08:51:19

Popping From the Stack

Time of First Successful Submission: 2026-09-10 13:44:40

Negative Numbers

Time of First Successful Submission: 2026-09-11 11:18:35

Negative Numbers (16-bit)

Time of First Successful Submission: 2026-09-11 13:47:15

Negative Numbers (32-bit)

Time of First Successful Submission: 2026-09-11 13:53:38

Encoding Negatives

Time of First Successful Submission: 2026-09-11 13:59:48

Binary and Hex Encoding

Time of First Successful Submission: 2026-09-11 17:52:45

More Hex

Time of First Successful Submission: 2026-09-11 18:05:21

Decoding Hex

Time of First Successful Submission: 2026-09-11 18:19:25

Mixed Conversions

Time of First Successful Submission: 2026-09-11 18:41:28

Disassembling Programs

Time of First Successful Submission: 2026-09-14 05:38:35

Tracing Syscalls

Time of First Successful Submission: 2026-09-14 05:42:18

Starting GDB

Time of First Successful Submission: 2026-09-14 05:49:25

Quitting GDB

Time of First Successful Submission: 2026-09-14 06:03:09

Starting Programs in GDB

Time of First Successful Submission: 2026-09-14 06:06:11

Disassembling in GDB

Time of First Successful Submission: 2026-09-14 06:08:01

Stepping Through Instructions

Time of First Successful Submission: 2026-09-14 06:10:19

Reading Register Values

Time of First Successful Submission: 2026-09-14 06:12:37

Setting Register Values

Time of First Successful Submission: 2026-09-14 06:14:05

Popping Stack Values

Time of First Successful Submission: 2026-09-14 06:16:09

Examining Memory

Time of First Successful Submission: 2026-09-14 06:18:32

Examining Stack Pointers

Time of First Successful Submission: 2026-09-14 06:21:09

Cooperative Debugging

Time of First Successful Submission: 2026-09-14 08:18:36

Running with Arguments

Time of First Successful Submission: 2026-09-14 08:19:47

Redirecting Input in GDB

Time of First Successful Submission: 2026-09-14 08:20:49

Writing Output

Time of First Successful Submission: 2026-09-15 09:28:38

Chaining Syscalls

Time of First Successful Submission: 2026-09-15 09:34:30

Writing Strings

Time of First Successful Submission: 2026-09-15 10:08:11

Reading Data

Time of First Successful Submission: 2026-09-15 11:04:53

Reading Exactly

Time of First Successful Submission: 2026-09-15 11:07:15

Opening Files

Time of First Successful Submission: 2026-09-15 11:41:51

Hardcoding the Filename

Time of First Successful Submission: 2026-09-15 11:57:02

RIP-Relative Strings

Time of First Successful Submission: 2026-09-15 12:33:03

Comparing Values

Time of First Successful Submission: 2026-09-16 11:25:56

Comparing Characters

Time of First Successful Submission: 2026-09-16 12:07:34

Conditional Control Flow

Time of First Successful Submission: 2026-09-16 12:56:26

Comparing Strings

Time of First Successful Submission: 2026-09-16 14:19:34

Reverse the Password

Time of First Successful Submission: 2026-09-16 15:38:50

Conditionals Without Conditionals

Time of First Successful Submission: 2026-09-17 10:53:58

Recognizing Loops

Time of First Successful Submission: 2026-09-17 11:06:27

Writing Loops

Time of First Successful Submission: 2026-09-17 11:57:49

Writing From a Shared Library

Time of First Successful Submission: 2026-09-17 12:20:04

Returning a Value

Time of First Successful Submission: 2026-09-17 12:37:39

Calling Through a Pointer

Time of First Successful Submission: 2026-09-17 12:42:53

Calling Through a Pointer with an Argument

Time of First Successful Submission: 2026-09-17 12:47:17

Saving Caller-Saved Registers

Time of First Successful Submission: 2026-09-17 14:48:33

Saving Callee-Saved Registers

Time of First Successful Submission: 2026-09-17 14:44:41

Sign Extension

Time of First Successful Submission: 2026-09-18 06:23:32

Little-Endian Bytes

Time of First Successful Submission: 2026-09-18 08:10:22

Qword by Qword

Time of First Successful Submission: 2026-09-18 08:19:58

Dword by Dword

Time of First Successful Submission: 2026-09-18 08:34:18

Word by Word

Time of First Successful Submission: 2026-09-18 08:36:56

Byte by Byte

Time of First Successful Submission: 2026-09-18 08:38:44

Cracking a Struct

Time of First Successful Submission: 2026-09-18 08:46:11

Scrambled Struct

Time of First Successful Submission: 2026-09-18 08:54:50

Reverse the Calculation

Time of First Successful Submission: 2026-09-19 06:59:57

Reverse the Reverse

Time of First Successful Submission: 2026-09-19 07:01:35

Dealing with Bitwise Operations

Time of First Successful Submission: 2026-09-19 07:05:33

Even or Odd

Time of First Successful Submission: 2026-09-19 07:38:00

Masking Bits

Time of First Successful Submission: 2026-09-19 08:29:55

Lowercase a String

Time of First Successful Submission: 2026-09-19 08:34:30

Uppercase a String

Time of First Successful Submission: 2026-09-19 08:43:08


Playing With Programs

19 / 116 17033 / 26286


What's the password?

Time of First Successful Submission: 2026-08-26 16:37:40

... and again!

Time of First Successful Submission: 2026-08-26 16:38:27

Newline Troubles

Time of First Successful Submission: 2026-08-29 19:12:46

Reasoning about files

Time of First Successful Submission: 2026-08-29 19:17:06

Specifying Filenames

Time of First Successful Submission: 2026-08-31 06:29:40

Binary and Hex Encoding

Time of First Successful Submission: 2026-08-31 07:27:22

More Hex

Time of First Successful Submission: 2026-08-31 07:29:01

Decoding Hex

Time of First Successful Submission: 2026-08-31 07:32:51

Decoding Practice

Time of First Successful Submission: 2026-08-31 07:52:28

Encoding Practice

Time of First Successful Submission: 2026-08-31 07:55:10

Hex-encoding ASCII

Time of First Successful Submission: 2026-08-31 08:06:23

Nested Encoding

Time of First Successful Submission: 2026-08-31 10:28:00

Hex-encoding UTF-8

Time of First Successful Submission: 2026-08-31 10:29:46

UTF Mixups

Time of First Successful Submission: 2026-08-31 10:37:51

Modifying Encoded Data

Time of First Successful Submission: 2026-08-31 12:00:22

Decoding Base64

Time of First Successful Submission: 2026-08-31 17:03:20

Encoding Base64

Time of First Successful Submission: 2026-08-31 17:07:53

Dealing with Obfuscation

Time of First Successful Submission: 2026-08-31 17:24:16

Dealing with Obfuscation 2

Time of First Successful Submission: 2026-08-31 17:30:38


DSU Cyber Camps

104 / 104 20 / 65566


Using the Terminal

Time of First Successful Submission: 2026-08-05 11:39:16

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-05 11:45:08

Using the GUI Desktop

Time of First Successful Submission: 2026-08-05 11:49:57

Pasting into the Desktop

Time of First Successful Submission: 2026-08-05 11:52:07

Connecting over SSH

Time of First Successful Submission: 2026-08-05 12:02:27

Restarting Challenges

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

Getting Help

Time of First Successful Submission: 2026-08-05 12:09:15

Challenge Programs

Time of First Successful Submission: 2026-08-05 12:40:33

The Flag File

Time of First Successful Submission: 2026-08-05 12:43:00

Using Privileged Mode

Time of First Successful Submission: 2026-08-05 12:53:58

Persistent Home Directories - One

Time of First Successful Submission: 2026-08-05 16:12:58

Persistent Home Directories - Two

Time of First Successful Submission: 2026-08-05 16:14:20

Running Commands

Time of First Successful Submission: 2026-08-06 11:09:31

Move through the Linux filesystem.

Time of First Successful Submission: 2026-08-06 11:14:43

Create and delete files.

Time of First Successful Submission: 2026-08-06 11:18:34

Move, copy, and rename files.

Time of First Successful Submission: 2026-08-06 11:41:55

Display file contents in the terminal.

Time of First Successful Submission: 2026-08-06 11:52:46

Create files with nano.

Time of First Successful Submission: 2026-08-06 12:07:07

Edit files with nano.

Time of First Successful Submission: 2026-08-06 12:08:17

Locate files on the Linux filesystem.

Time of First Successful Submission: 2026-08-06 12:17:11

Find the password! (Searching files)

Time of First Successful Submission: 2026-08-06 12:28:42

Advanced Directory Techniques.

Time of First Successful Submission: 2026-08-06 13:03:33

Learn about command flags.

Time of First Successful Submission: 2026-08-06 13:07:55

Printing

Time of First Successful Submission: 2026-08-06 13:25:03

Variables

Time of First Successful Submission: 2026-08-06 13:30:11

Format Print

Time of First Successful Submission: 2026-08-06 13:39:22

User Input

Time of First Successful Submission: 2026-08-06 15:14:20

Type Casting

Time of First Successful Submission: 2026-08-06 15:17:46

Knowledge Check I (Input/Output)

Time of First Successful Submission: 2026-08-06 15:25:40

Knowledge Check II (Input/Output)

Time of First Successful Submission: 2026-08-06 15:35:43

Math

Time of First Successful Submission: 2026-08-06 15:52:45

Floor Division

Time of First Successful Submission: 2026-08-06 16:16:38

Geometry

Time of First Successful Submission: 2026-08-06 16:20:22

Comparison

Time of First Successful Submission: 2026-08-06 16:42:48

Knowledge Check I (Math)

Time of First Successful Submission: 2026-08-06 17:13:30

Knowledge Check II (Math)

Time of First Successful Submission: 2026-08-06 17:19:19

If Statements

Time of First Successful Submission: 2026-08-07 14:21:58

If Else Statements

Time of First Successful Submission: 2026-08-07 16:18:00

Nested

Time of First Successful Submission: 2026-08-07 17:20:26

Else If Blocks

Time of First Successful Submission: 2026-08-07 17:29:05

Logical Operators

Time of First Successful Submission: 2026-08-09 10:19:03

Knowledge Check I (Conditionals)

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

While

Time of First Successful Submission: 2026-08-10 14:12:22

Lists

Time of First Successful Submission: 2026-08-10 14:13:57

Range

Time of First Successful Submission: 2026-08-10 14:15:19

For

Time of First Successful Submission: 2026-08-10 14:20:41

Knowledge Check I (Loops)

Time of First Successful Submission: 2026-08-10 14:30:24

Caesar Cipher Encoding

Time of First Successful Submission: 2026-08-11 08:54:06

Caesar Cipher Decoding

Time of First Successful Submission: 2026-08-11 08:56:09

Substitution Cipher Encoding

Time of First Successful Submission: 2026-08-11 08:59:38

Substitution Cipher Decoding

Time of First Successful Submission: 2026-08-11 09:00:48

ASCII Encoding

Time of First Successful Submission: 2026-08-11 09:01:52

ASCII Decoding

Time of First Successful Submission: 2026-08-11 09:02:57

Hexadecimal - Encoding

Time of First Successful Submission: 2026-08-11 09:04:14

Hexadecimal - Decoding

Time of First Successful Submission: 2026-08-11 09:05:28

Binary Encoding

Time of First Successful Submission: 2026-08-11 09:06:50

Binary Decoding

Time of First Successful Submission: 2026-08-11 09:09:28

Morse Code - Encoding

Time of First Successful Submission: 2026-08-11 09:16:45

Morse Code - Decoding

Time of First Successful Submission: 2026-08-11 09:18:18

Base64 - Encoding

Time of First Successful Submission: 2026-08-11 09:23:21

Base64 - Decoding

Time of First Successful Submission: 2026-08-11 09:24:34

Playfair - Encoding

Time of First Successful Submission: 2026-08-11 13:59:57

Playfair - Decoding

Time of First Successful Submission: 2026-08-11 14:01:49

Polybius Square - Encoding

Time of First Successful Submission: 2026-08-11 14:13:42

Polybius Square - Decoding

Time of First Successful Submission: 2026-08-11 14:27:00

Rail Fence (Zigzag) - Encoding

Time of First Successful Submission: 2026-08-11 14:38:24

Rail Fence (Zigzag) - Decoding

Time of First Successful Submission: 2026-08-11 14:48:58

Caesar Cipher Scripting

Time of First Successful Submission: 2026-08-11 19:12:14

Caesar Cipher Brute Force

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

Easy Challenge #1

Time of First Successful Submission: 2026-08-12 17:05:32

Medium Challenge #1

Time of First Successful Submission: 2026-08-12 17:11:14

Hard Challenge #1

Time of First Successful Submission: 2026-08-12 18:14:52

Google Dorks

Time of First Successful Submission: 2026-08-12 18:41:38

Social Media Password

Time of First Successful Submission: 2026-08-12 19:01:10

Wayback Machine I

Time of First Successful Submission: 2026-08-12 19:32:39

Wayback Machine II

Time of First Successful Submission: 2026-08-12 19:46:55

Pale Red Horse Squad

Time of First Successful Submission: 2026-08-14 13:04:21

Swiss Army Button

Time of First Successful Submission: 2026-08-14 13:19:04

YeeBay

Time of First Successful Submission: 2026-08-14 13:34:33

Am I Admin?

Time of First Successful Submission: 2026-08-14 17:51:13

Am I Admin 2?

Time of First Successful Submission: 2026-08-14 18:43:53

Forceful Browsing

Time of First Successful Submission: 2026-08-15 17:42:55

Intro to BurpSuite

Time of First Successful Submission: 2026-08-15 19:49:03

Intruder Alert!

Time of First Successful Submission: 2026-08-17 19:30:51

Creepy Crawly

Time of First Successful Submission: 2026-08-17 20:27:49

Mr. Moneybags

Time of First Successful Submission: 2026-08-18 07:25:04

XML + Ratio

Time of First Successful Submission: 2026-08-18 07:32:40

Cache Money

Time of First Successful Submission: 2026-08-18 07:37:48

Buffer Overflow

Time of First Successful Submission: 2026-08-18 10:31:25

Magic Number

Time of First Successful Submission: 2026-08-18 10:34:58

Reverse Password Plaintext

Time of First Successful Submission: 2026-08-18 13:00:43

Reverse Password Backward

Time of First Successful Submission: 2026-08-18 13:02:11

Reverse Password Cipher

Time of First Successful Submission: 2026-08-18 13:03:42

Icky Input

Time of First Successful Submission: 2026-08-18 13:06:26

Grep Master

Time of First Successful Submission: 2026-08-18 15:00:16

Unlock The Vault

Time of First Successful Submission: 2026-08-18 15:03:52

Locked Treasure Chest

Time of First Successful Submission: 2026-08-18 15:12:04

The Artists Clue

Time of First Successful Submission: 2026-08-18 15:13:42

Code Cracker

Time of First Successful Submission: 2026-08-18 15:19:36

Chatty Server

Time of First Successful Submission: 2026-08-18 19:01:24

Secret Message In Photo

Time of First Successful Submission: 2026-08-18 19:04:28

Hidden Treasures In The Picture

Time of First Successful Submission: 2026-08-18 19:12:26

Findthegeneral

Time of First Successful Submission: 2026-08-18 19:17:02

Findthegeneralii

Time of First Successful Submission: 2026-08-18 19:20:54


GCA CTF

104 / 104 20 / 65566


Using the Terminal

Time of First Successful Submission: 2026-08-05 11:39:16

Using the VSCode Workspace

Time of First Successful Submission: 2026-08-05 11:45:08

Using the GUI Desktop

Time of First Successful Submission: 2026-08-05 11:49:57

Pasting into the Desktop

Time of First Successful Submission: 2026-08-05 11:52:07

Connecting over SSH

Time of First Successful Submission: 2026-08-05 12:02:27

Restarting Challenges

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

Getting Help

Time of First Successful Submission: 2026-08-05 12:09:15

Challenge Programs

Time of First Successful Submission: 2026-08-05 12:40:33

The Flag File

Time of First Successful Submission: 2026-08-05 12:43:00

Using Privileged Mode

Time of First Successful Submission: 2026-08-05 12:53:58

Persistent Home Directories - One

Time of First Successful Submission: 2026-08-05 16:12:58

Persistent Home Directories - Two

Time of First Successful Submission: 2026-08-05 16:14:20

Running Commands

Time of First Successful Submission: 2026-08-06 11:09:31

Move through the Linux filesystem.

Time of First Successful Submission: 2026-08-06 11:14:43

Create and delete files.

Time of First Successful Submission: 2026-08-06 11:18:34

Move, copy, and rename files.

Time of First Successful Submission: 2026-08-06 11:41:55

Display file contents in the terminal.

Time of First Successful Submission: 2026-08-06 11:52:46

Create files with nano.

Time of First Successful Submission: 2026-08-06 12:07:07

Edit files with nano.

Time of First Successful Submission: 2026-08-06 12:08:17

Locate files on the Linux filesystem.

Time of First Successful Submission: 2026-08-06 12:17:11

Find the password! (Searching files)

Time of First Successful Submission: 2026-08-06 12:28:42

Advanced Directory Techniques.

Time of First Successful Submission: 2026-08-06 13:03:33

Learn about command flags.

Time of First Successful Submission: 2026-08-06 13:07:55

Printing

Time of First Successful Submission: 2026-08-06 13:25:03

Variables

Time of First Successful Submission: 2026-08-06 13:30:11

Format Print

Time of First Successful Submission: 2026-08-06 13:39:22

User Input

Time of First Successful Submission: 2026-08-06 15:14:20

Type Casting

Time of First Successful Submission: 2026-08-06 15:17:46

Knowledge Check I (Input/Output)

Time of First Successful Submission: 2026-08-06 15:25:40

Knowledge Check II (Input/Output)

Time of First Successful Submission: 2026-08-06 15:35:43

Math

Time of First Successful Submission: 2026-08-06 15:52:45

Floor Division

Time of First Successful Submission: 2026-08-06 16:16:38

Geometry

Time of First Successful Submission: 2026-08-06 16:20:22

Comparison

Time of First Successful Submission: 2026-08-06 16:42:48

Knowledge Check I (Math)

Time of First Successful Submission: 2026-08-06 17:13:30

Knowledge Check II (Math)

Time of First Successful Submission: 2026-08-06 17:19:19

If Statements

Time of First Successful Submission: 2026-08-07 14:21:58

If Else Statements

Time of First Successful Submission: 2026-08-07 16:18:00

Nested

Time of First Successful Submission: 2026-08-07 17:20:26

Else If Blocks

Time of First Successful Submission: 2026-08-07 17:29:05

Logical Operators

Time of First Successful Submission: 2026-08-09 10:19:03

Knowledge Check I (Conditionals)

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

While

Time of First Successful Submission: 2026-08-10 14:12:22

Lists

Time of First Successful Submission: 2026-08-10 14:13:57

Range

Time of First Successful Submission: 2026-08-10 14:15:19

For

Time of First Successful Submission: 2026-08-10 14:20:41

Knowledge Check I (Loops)

Time of First Successful Submission: 2026-08-10 14:30:24

Caesar Cipher Encoding

Time of First Successful Submission: 2026-08-11 08:54:06

Caesar Cipher Decoding

Time of First Successful Submission: 2026-08-11 08:56:09

Substitution Cipher Encoding

Time of First Successful Submission: 2026-08-11 08:59:38

Substitution Cipher Decoding

Time of First Successful Submission: 2026-08-11 09:00:48

ASCII Encoding

Time of First Successful Submission: 2026-08-11 09:01:52

ASCII Decoding

Time of First Successful Submission: 2026-08-11 09:02:57

Hexadecimal - Encoding

Time of First Successful Submission: 2026-08-11 09:04:14

Hexadecimal - Decoding

Time of First Successful Submission: 2026-08-11 09:05:28

Binary Encoding

Time of First Successful Submission: 2026-08-11 09:06:50

Binary Decoding

Time of First Successful Submission: 2026-08-11 09:09:28

Morse Code - Encoding

Time of First Successful Submission: 2026-08-11 09:16:45

Morse Code - Decoding

Time of First Successful Submission: 2026-08-11 09:18:18

Base64 - Encoding

Time of First Successful Submission: 2026-08-11 09:23:21

Base64 - Decoding

Time of First Successful Submission: 2026-08-11 09:24:34

Playfair - Encoding

Time of First Successful Submission: 2026-08-11 13:59:57

Playfair - Decoding

Time of First Successful Submission: 2026-08-11 14:01:49

Polybius Square - Encoding

Time of First Successful Submission: 2026-08-11 14:13:42

Polybius Square - Decoding

Time of First Successful Submission: 2026-08-11 14:27:00

Rail Fence (Zigzag) - Encoding

Time of First Successful Submission: 2026-08-11 14:38:24

Rail Fence (Zigzag) - Decoding

Time of First Successful Submission: 2026-08-11 14:48:58

Caesar Cipher Scripting

Time of First Successful Submission: 2026-08-11 19:12:14

Caesar Cipher Brute Force

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

Easy Challenge #1

Time of First Successful Submission: 2026-08-12 17:05:32

Medium Challenge #1

Time of First Successful Submission: 2026-08-12 17:11:14

Hard Challenge #1

Time of First Successful Submission: 2026-08-12 18:14:52

Google Dorks

Time of First Successful Submission: 2026-08-12 18:41:38

Social Media Password

Time of First Successful Submission: 2026-08-12 19:01:10

Wayback Machine I

Time of First Successful Submission: 2026-08-12 19:32:39

Wayback Machine II

Time of First Successful Submission: 2026-08-12 19:46:55

Pale Red Horse Squad

Time of First Successful Submission: 2026-08-14 13:04:21

Swiss Army Button

Time of First Successful Submission: 2026-08-14 13:19:04

YeeBay

Time of First Successful Submission: 2026-08-14 13:34:33

Am I Admin?

Time of First Successful Submission: 2026-08-14 17:51:13

Am I Admin 2?

Time of First Successful Submission: 2026-08-14 18:43:53

Forceful Browsing

Time of First Successful Submission: 2026-08-15 17:42:55

Intro to BurpSuite

Time of First Successful Submission: 2026-08-15 19:49:03

Intruder Alert!

Time of First Successful Submission: 2026-08-17 19:30:51

Creepy Crawly

Time of First Successful Submission: 2026-08-17 20:27:49

Mr. Moneybags

Time of First Successful Submission: 2026-08-18 07:25:04

XML + Ratio

Time of First Successful Submission: 2026-08-18 07:32:40

Cache Money

Time of First Successful Submission: 2026-08-18 07:37:48

Buffer Overflow

Time of First Successful Submission: 2026-08-18 10:31:25

Magic Number

Time of First Successful Submission: 2026-08-18 10:34:58

Reverse Password Plaintext

Time of First Successful Submission: 2026-08-18 13:00:43

Reverse Password Backward

Time of First Successful Submission: 2026-08-18 13:02:11

Reverse Password Cipher

Time of First Successful Submission: 2026-08-18 13:03:42

Icky Input

Time of First Successful Submission: 2026-08-18 13:06:26

Grep Master

Time of First Successful Submission: 2026-08-18 15:00:16

Unlock The Vault

Time of First Successful Submission: 2026-08-18 15:03:52

Locked Treasure Chest

Time of First Successful Submission: 2026-08-18 15:12:04

The Artists Clue

Time of First Successful Submission: 2026-08-18 15:13:42

Code Cracker

Time of First Successful Submission: 2026-08-18 15:19:36

Chatty Server

Time of First Successful Submission: 2026-08-18 19:01:24

Secret Message In Photo

Time of First Successful Submission: 2026-08-18 19:04:28

Hidden Treasures In The Picture

Time of First Successful Submission: 2026-08-18 19:12:26

Findthegeneral

Time of First Successful Submission: 2026-08-18 19:17:02

Findthegeneralii

Time of First Successful Submission: 2026-08-18 19:20:54