VNC (Virtual Network Computing) は、技術者がグラフィカル ユーザー インターフェイスを使用して社内 LAN 上のさまざまな Windows、Linux、および macOS デスクトップにアクセスし、制御できるようにするリモート アクセス ツールです。VNC はローカル ネットワークまたは VPN 経由で動作するため、外部のインターネット接続は必要ありません。VNC はクライアント サーバー モデルを使用します。サーバーはリモート デスクトップ上で実行され、クライアントは別のデバイスからサーバーに接続します。VNC は、キーボード イベントとマウス イベントをクライアントからサーバーに送信し、画面の更新をサーバーからクライアントに送信できるため、技術者はリモート デスクトップをローカルであるかのように操作できます12。
VNC は、次の理由から他の選択肢よりも優れたオプションです。
* RMM (Remote Monitoring and Management) (B) is not a single software solution, but a category of software solutions that enable IT professionals to remotely monitor, manage, and troubleshoot multiple devices and networks. RMM software may include remote access tools, but also other features such as patch management, backup and recovery, security, reporting, and automation. RMM software may require an external internet connection, as it often relies on cloud-based services or web-based consoles34.
* RDP (Remote Desktop Protocol) is a remote access tool that allows the technician to access and control Windows desktops on the company LAN using a graphical user interface. However, RDP is not compatible with Linux or macOS desktops, unless they have third-party software installed that can emulate or translate the RDP protocol. RDP also has some security and performance issues, such as encryption vulnerabilities, bandwidth consumption, and latency problems56.
* SSH (Secure Shell) (D) is a remote access tool that allows the technician to access and control various Windows, Linux, and macOS desktops on the company LAN using a command-line interface. SSH does not require an external internet connection, as it works over a local network or a VPN. SSH uses encryption and authentication to secure the communication between the client and the server. However, SSH does not provide a graphical user interface, which may limit the functionality and usability of the remote desktop7 .
References:
1: What is VNC? - Definition from Techopedia1 2: How VNC Works - RealVNC2 3: What is Remote Monitoring and Management (RMM)? - Definition from Techopedia3 4: What is RMM Software? - NinjaRMM4 5: What is Remote Desktop Protocol (RDP)? - Definition from Techopedia5 6: Remote Desktop Protocol: What it is and how to secure it - CSO Online6 7: What is Secure Shell (SSH)? - Definition from Techopedia7 : How to Use SSH to Access a Remote Server in Linux or Windows - Hostinger Tutorials