Lecture 02 - 05/22/2025

Reminders

• Last day to drop a full summer class without a W grade is May 25, 2025.

Agenda

• Bastion Hosts / Jump Server
• DNS Setup
  • Public Hosted Zones
  • Private Hosted Zones
  • Hosted Zones for Subdomains
• Managing Secrets in Git Repositories with Mozilla SOPS
• Introduction to Go

IDE Setup

Info

GoLand is free with student license.

• Go extension for Visual Studio Code
• GoLand

Reading

Bastion Hosts

• Bastion host
• Linux Bastion Hosts on AWS
• Bastion Host - Google Cloud

Go

• Take your first steps with Go
• The Little Go Book
• Go in Action by William Kennedy with Brian Ketelsen and Erik St. Martin
• The Go Programming Language by Brian W. Kernighan, Alan A. A. Donovan
• Head First Go by Jay McGavren
• Go Website
• Go Documentation
• Go Standard library
• Install Go
• Error Handling

VSCode Debug Go Template

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "program": "${workspaceFolder}/main.go",
            "args": [],
            "env": {},
            "cwd": "${workspaceFolder}",
            "showLog": true
        }
    ]
}

SSH Config

Host <ALIAS>
  HostName <PUBLIC_IP>
  Port 22
  User ubuntu
  IdentityFile ~/.ssh/id_rsa
  StrictHostKeyChecking no
  UserKnownHostsFile=/dev/null