NETWORK SCANNING
NETWORK SCANNING:
Network scanning refers to the process of scanning a computer network to discover and gather information about its devices, services, and vulnerabilities. This activity can be performed for various purposes, including network administration, security assessment, and troubleshooting. Network scanning tools and techniques are used by network administrators, security professionals, and hackers alike
Here are some key aspects of network scanning:
Device Discovery:
Network scanning helps identify all the devices connected to a network. This includes computers, servers, routers, switches, printers, and other networked devices. By knowing what's on the network, administrators can manage and maintain it more effectively.
Port Scanning:
Port scanning is a common technique used to discover which services are running on specific devices. It involves sending network requests to various ports on a device to see if they are open and listening for connections. Open ports can reveal the services that are running and can potentially be exploited if they have known vulnerabilities.
Vulnerability Assessment:
Network scanning tools can check devices and services for known vulnerabilities. This helps organizations identify and patch security weaknesses before attackers can exploit them. Vulnerability scanners like Nessus and OpenVAS are commonly used for this purpose.
Security Auditing:
Scanning can be part of routine security audits to ensure that a network meets compliance and security standards. Auditors may look for unauthorized or insecure configurations and settings.
Troubleshooting:
Network administrators often use scanning tools to diagnose network issues. By analyzing network traffic and connectivity, they can pinpoint problems and take corrective actions.
Mapping Network Topology:
Scanning can help map the network's topology, showing how devices are interconnected. This information is valuable for understanding the network's architecture and planning for improvements or expansions.