Site to site VPN - connects entire networks to each other, allowing branches or remote offices to communicate securely over the internet as if they were within the same local network. This type of VPN is commonly used to connect geographically dispersed o ices of an organization, enabling secure and private communications using encrypted tunnels over public networks., Client to site VPN - also known as Remote Access VPN, allows individual clients (such as employees working remotely) to connect to the corporate network securely over the internet, Clientless - allows users to securely access network resources through a web browser without the need for installing dedicated VPN client software., Split tunnel - only network traffic for the corporate site passes through the VPN tunnel, while other tra ic accesses the internet directly. This can reduce the load on the VPN gateway but may expose the traffic to security risks., Full tunnel - all of the client's internet traffic is routed through the VPN to the corporate network. This increases security as all traffic is encrypted but can lead to higher bandwidth usage and slower performance, connection methods - Common methods include SSH, GUI, API, and console connections,, SSH - cryptographic network protocol for secure remote login and other secure network services over an unsecured network., Graphical user interface (GUI) - visual interface to interact with a computer or network device, making it accessible for users who prefer point-and-click interactions over command-line interfaces., API - programmable interac on with network devices and systems, enabling automation, integration with other systems, and custom functionality. They are crucial for modern network management, allowing administrators to create custom scripts and applications that interact directly with network hardware and software., Console - provide direct, physical access to network devices through a console port, typically using a cable and a terminal emulator., Jump box/host - is a secure computer that all administrators first connect to before launching any administrative task or accessing more sensitive parts of the network., In band management - involves administering network devices through the same network connections and paths used for normal data traffic., Out of band management - uses a separate, dedicated channel for device administration, independent of the primary network infrastructure., cryptography - uses mathematical algorithms to secure digital information, providing confidentiality, integrity, and authentication through techniques like encryption and digital signatures. It protects data by converting it into an unreadable format, making it inaccessible to unauthorized parties and ensuring data hasn't been tampered with during transmission or storage,

3.5 Network access

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