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Showing posts from April, 2025

Brief description on SIEM (Security Information and Event Management)

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SIEM (Security Information and Event Management) tools are specialized software solutions that collect, analyze, and manage vast amounts of security data. They help security teams identify, investigate, and respond to security threats by monitoring events across an organization's network and systems.   Key Features and Functions: Data Collection and Aggregation: SIEM tools gather log data, events, and other security-related information from various sources within the organization, such as firewalls, intrusion detection systems, servers, and applications.  Real-time Monitoring and Analysis: They provide real-time visibility into security events and patterns, enabling security teams to quickly detect and respond to potential threats.  Threat Detection and Alerting: SIEM solutions use rules and algorithms to identify suspicious activities and generate alerts, notifying security teams about potential security breaches.  Incident Investigation and ...

Cloud computing Concepts and Fundamentals

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Past: Origins and Early Development 1960s–1990s: Concepts: Introduced as time-sharing and virtual machines (mainframe era). Grid Computing: Emerged to allow distributed computing power. Client-server model: Gained popularity in the 1990s with the growth of the internet. Early 2000s: Infrastructure as a Service (IaaS): Amazon Web Services (AWS) launched in 2006. Software as a Service (SaaS): Salesforce (1999) pioneered cloud-hosted software delivery. --- Present: Mainstream Adoption and Innovation Key Models: IaaS, PaaS, SaaS widely adopted. Hybrid and Multi-cloud architectures in use. Technologies: Kubernetes & Containers: Enable scalable and portable applications. Serverless computing: Developers run code without managing servers. AI & ML in the cloud: Cloud platforms provide powerful AI tools and training infrastructure. Security & Compliance: Focus on Zero Trust models, encryption, and data governance. Top Providers: AWS, Microsoft Azure, Google C...