Tools & Technology
Firewalls:
Function: Act as a barrier between a trusted internal network and untrusted external networks. Types: Hardware Firewalls: Standalone devices that protect the entire network. Software Firewalls: Installed on individual devices to monitor and control incoming and outgoing traffic. Features: Packet filtering based on pre-defined security rules. Stateful inspection to track active connections. Can block unauthorized access and monitor traffic patterns.
Intrusion detection system:
Function: Monitors network traffic for suspicious activity or policy violations. Types: Network-based IDS (NIDS): Analyzes traffic at various points in the network. Host-based IDS (HIDS): Monitors individual devices for suspicious activity. Features: Alerts administrators of possible intrusions or attacks. Can provide detailed logs for forensic analysis. Works in tandem with intrusion prevention systems (IPS) to block threats.
Wireless Monitoring Tools:
Wi-Fi Analyzers: Tools such as AirMagnet or NetSpot that assess network performance and security. Rogue Access Point Detection: Monitors for unauthorized access points that could compromise network security. Network Management Systems (NMS): Centralized platforms for controlling and managing all network devices, including wireless. Purpose: VPNs create a secure and encrypted tunnel for data transmission, safeguarding sensitive information from potential eavesdropping on public networks. Key Features: Encryption: All data sent and received is encrypted, making it unreadable to unauthorized parties. IP Masking: VPNs hide the user’s real IP address, providing anonymity while online. Access Control: Users can bypass geo-restrictions and access network resources from remote locations. Benefits: Security on Public Wi-Fi: Essential when accessing sensitive information or services (e.g., banking) on unsecured networks like those in cafes or airports. Protection from Man-in-the-Middle Attacks: Prevents attackers on the same public network from intercepting data transmissions. Improved Privacy: Protects users’ online activities from government surveillance and data collection practices.