Study Notes

BSD
- FreeBSD
CCTV
Cryptography
- Asymmetric-Encryption
  - RSA
- Encoding
  - Base64
  - URL Encoding
- Hash Functions
  - MD5
- Password Hashing
  - LM Hash
- Symmetric Encryption
  - Block Ciphers
    - AES
    - DES
DIY
- Cantenna
Hardware
macOS
Networking
- Ethernet
- Networking Fundamentals
- Ports
- Protocols
  - Networking Protocol?
  - ARP
  - DHCP
  - DNS
    - DNS Attacks
    - DNS Fundamentals
  - FTP
  - ICMP
  - RTSP
  - SSH
    - (0) What is SSH
    - OpenSSH
  - TCP
  - UDP
- VPN / Proxies
- Wireless
Scripting & Automation
- DQ
- Regular Expression
- Shells
Web Application Security
- HTTP Headers
  - Content Security Policy (CSP)
Windows
- Microsoft Management Console (MMC)
- Windows NT & MS-DOS
- Active Directory
  - AD Fundamentals
  - AD Attacks & Defense
    - AS-REProasting
    - Kerberoasting
  - AD Protocols
    - DNS in AD
    - Kerberos
    - LDAP
    - MSRPC
    - NTLM
  - AD Users
- Powershell
  - cmdlet
    - cmdlet (command-let)
    - cmdlet commands
      - Active Directory
        
        -Properties
        
        Get-ADGroup
        
        Get-ADUser
- Windows Event Logs
  - EventLog & Event Viewer
  - Get-WinEvent

DOS (Disk Operating System)

DOS is a family of disk-based operating systems for IBM PC compatible computers. It primarily consists of IBM PC DOS and a rebranded version, Microsoft’s MS-DOS, both of which were introduced in 1981.

The most famous variant is MS-DOS (Microsoft Disk Operating System) an operating system for x86-based personal computers mostly developed by Microsoft.

It was command-line based, meaning you typed commands instead of using a graphical interface. DOS was bare metal: it talked directly to hardware, making it fast but unsafe.

MS-DOS command prompt:

Windows NT (New Technology)

a family of operating systems, first released as Windows NT 3.1 in 1993.

Windows NT was designed as a fully 32-bit, preemptive multitasking OS for professional and enterprise use.

All modern Windows versions (Windows XP, 7, 10, 11) are built on the NT kernel, meaning the core architecture comes from Windows NT. They are sometimes called Windows NT family.

Screenshot of Windows NT 3.1: