The Bandit wargame taught me the basics needed to be able to play other wargames. Level 0 –> 1 Login : ssh bandit0@bandit.labs.overthewire.org -p 2220 Password : bandit0 Steps to resolve : cat readme Level 1 -> 2 Login : ssh bandit1@bandit.labs.overthewire.org -p 2220 Password : ZjLjTmM6FvvyRnrb2rfNWOZOTa6ip5If Steps to resolve : cat ./- prefix the filename with a path Level 2 -> 3 Login : ssh bandit2@bandit.labs.overthewire.org -p 2220 Password : 263JGJPfgU6LtdEvgfWU1XP5yac29mFx ...

What is a Shell? Shell = command interpreter program that provides an interactive environment for running commands. Common shells: /bin/bash - Bourne Again Shell (most common) /bin/sh - Bourne Shell (POSIX standard) /bin/zsh - Z Shell /bin/dash - Debian Almquist Shell What shells do: Provide interactive prompt for typing commands Interpret and execute commands Run other programs Handle scripting with shell syntax Manage environment (variables, paths, job control) Understanding /etc/passwd /etc/passwd = file containing user account information ...

What is AWS CDK? AWS CDK (Cloud Development Kit) is a framework that lets you define AWS infrastructure using programming languages (TypeScript, Python, Java, etc.) instead of writing CloudFormation YAML/JSON directly. Key concept: CDK is a code generator - it converts your code into CloudFormation templates, then deploys them using CloudFormation service. What is CloudFormation? AWS CloudFormation is the underlying AWS service that actually creates and manages your infrastructure resources. ...