About Me
CompTIA Security+
1 Threats, Attacks, and Vulnerabilities
1-1 Types of Threats
1-2 Types of Attacks
1-3 Vulnerabilities
1-4 Threat Actors and Motives
1-5 Threat Intelligence
1-6 Incident Response
1-7 Penetration Testing
1-8 Vulnerability Scanning
1-9 Threat Modeling
1-10 Security Controls
2 Technologies and Tools
2-1 Firewalls
2-2 Intrusion Detection Systems (IDS)
2-3 Intrusion Prevention Systems (IPS)
2-4 Security Information and Event Management (SIEM)
2-5 Data Loss Prevention (DLP)
2-6 Security Orchestration, Automation, and Response (SOAR)
2-7 Endpoint Security
2-8 Network Security
2-9 Cloud Security
2-10 Mobile Device Security
2-11 Secure Coding Practices
2-12 Cryptography
2-13 Public Key Infrastructure (PKI)
2-14 Certificate Management
2-15 Security Tools and Utilities
3 Architecture and Design
3-1 Security Models
3-2 Security Controls
3-3 Secure Network Design
3-4 Secure Systems Design
3-5 Secure Application Design
3-6 Secure Cloud Architecture
3-7 Secure Mobile Architecture
3-8 Secure IoT Architecture
3-9 Secure Data Storage
3-10 Secure Backup and Recovery
3-11 Security in DevOps
3-12 Security in Agile Development
3-13 Security in Continuous IntegrationContinuous Deployment (CICD)
3-14 Security in Configuration Management
3-15 Security in Identity and Access Management (IAM)
4 Identity and Access Management
4-1 Authentication Methods
4-2 Authorization Mechanisms
4-3 Identity and Access Management (IAM) Concepts
4-4 Single Sign-On (SSO)
4-5 Multi-Factor Authentication (MFA)
4-6 Federation
4-7 Role-Based Access Control (RBAC)
4-8 Attribute-Based Access Control (ABAC)
4-9 Identity as a Service (IDaaS)
4-10 Identity Lifecycle Management
4-11 Access Reviews and Audits
4-12 Privileged Access Management (PAM)
4-13 Identity Federation
4-14 Identity Provisioning and Deprovisioning
5 Risk Management
5-1 Risk Management Concepts
5-2 Risk Assessment
5-3 Risk Mitigation Strategies
5-4 Business Impact Analysis (BIA)
5-5 Risk Register
5-6 Risk Treatment
5-7 Risk Monitoring and Reporting
5-8 Risk Appetite and Tolerance
5-9 Risk Communication
5-10 Risk Transfer
5-11 Risk Acceptance
5-12 Risk Avoidance
5-13 Risk Reduction
5-14 Risk in Cloud Environments
5-15 Risk in Mobile Environments
5-16 Risk in IoT Environments
6 Cryptography and PKI
6-1 Cryptographic Concepts
6-2 Symmetric Encryption
6-3 Asymmetric Encryption
6-4 Hashing
6-5 Digital Signatures
6-6 Public Key Infrastructure (PKI)
6-7 Certificate Management
6-8 Certificate Authorities (CAs)
6-9 Certificate Revocation
6-10 Key Management
6-11 Cryptographic Protocols
6-12 Cryptographic Attacks
6-13 Quantum Cryptography
6-14 Post-Quantum Cryptography
6-15 Cryptographic Use Cases
7 Security Operations
7-1 Security Operations Concepts
7-2 Security Policies and Procedures
7-3 Security Awareness and Training
7-4 Security Monitoring and Logging
7-5 Incident Response
7-6 Forensics
7-7 Disaster Recovery
7-8 Business Continuity
7-9 Physical Security
7-10 Personnel Security
7-11 Supply Chain Security
7-12 Third-Party Risk Management
7-13 Security Audits and Assessments
7-14 Compliance and Regulatory Requirements
7-15 Security Metrics and Reporting
7-16 Security Operations Center (SOC)
7-17 Security Orchestration, Automation, and Response (SOAR)
7-18 Security in DevOps
7-19 Security in Agile Development
7-20 Security in Continuous IntegrationContinuous Deployment (CICD)
Intrusion Prevention Systems (IPS) Explained

Intrusion Prevention Systems (IPS) Explained

Key Concepts

Intrusion Prevention Systems (IPS) are security solutions designed to detect and prevent malicious activities in real-time. Unlike Intrusion Detection Systems (IDS), which only monitor and alert, IPS actively intervenes to block or mitigate threats.

Types of IPS

There are several types of IPS, each with its own approach to threat prevention:

1. Network-Based IPS (NIPS)

Network-Based IPS (NIPS) operates at the network layer, monitoring traffic across the entire network. It uses deep packet inspection (DPI) to analyze data packets for signs of malicious activity. If a threat is detected, NIPS can block the malicious traffic and alert the administrator.

Example: A NIPS system in a corporate network detects a flood of SYN packets targeting a web server, indicating a potential SYN flood attack. The NIPS immediately blocks the malicious traffic and sends an alert to the security team.

2. Host-Based IPS (HIPS)

Host-Based IPS (HIPS) is installed on individual hosts or servers, monitoring system activities and files for suspicious behavior. HIPS can block malicious processes, prevent unauthorized changes, and protect against local exploits.

Example: A HIPS installed on a database server detects an attempt to execute a SQL injection attack. The HIPS blocks the malicious query and logs the incident for further analysis.

3. Wireless IPS (WIPS)

Wireless IPS (WIPS) is specifically designed to monitor and protect wireless networks. It detects unauthorized access points, rogue devices, and wireless attacks such as deauthentication attacks. WIPS can block unauthorized devices and mitigate wireless threats.

Example: A WIPS in a university network detects a rogue access point broadcasting on the same frequency as the legitimate network. The WIPS blocks the rogue device and alerts the network administrator to investigate further.

Importance of IPS

IPS is crucial for several reasons:

Conclusion

Intrusion Prevention Systems (IPS) are essential tools for enhancing network and system security. By actively detecting and preventing threats, IPS helps organizations maintain a robust security posture and protect their assets from malicious activities.

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