2024-04-14(6): SSH, Permissions (Incl. Exercise)

SSH: Secure Shell

From SSH: Secure Shell

• SSH: Basics

• SSH: Public Key Authentication

• SSH: Secure Copy (scp)

• SSH File System (sshfs)

File System Permissions

From File System Permissions

• Permissions: Mode, User and Group Ownership

• Default Permissions: umask

• SetUID Programs: passwd, sudo, …

Exercises from Exercises: File System Permissions

• Exercise: Determine Your User Credentials

• Exercise: Create Group-Shared File

• Exercise: Create Private Directory

• Question: Private Directory

• Exercise: Create Public Directory

• Question: Public Directory

Homework

On Wednesday, we will start to program. Please make sure you have the following prerequisites installed:

• In WSL, install the packages build-essential (C and C++ compilers) and cmake (a build tool at a higher level than make)

• In Windows, install Visual Studio Code