Tutorials Security

Security

Firewalls, hardening, encryption, access control

security Intermediate

Implement Nginx SSL certificate automation with Let's Encrypt using Certbot

Set up automated SSL certificate management for Nginx using Let's Encrypt and Certbot. Configure automatic certificate renewal, implement SSL security hardening, and monitor certificate health for production websites.

35 min 4 distros 94 views
security Intermediate

Configure Node.js SSL certificates and HTTPS security hardening for production servers

Set up production-grade SSL/TLS encryption for Node.js applications with certificate management, secure cipher suites, and comprehensive security headers including HSTS implementation.

45 min 4 distros 88 views
security Advanced

Configure advanced nftables logging and monitoring for network security

Set up comprehensive nftables logging with structured syslog integration, Prometheus metrics collection, and ELK stack analysis. Configure Grafana dashboards for real-time firewall monitoring and automated alerting for security events.

45 min 4 distros 103 views
security Intermediate

Set up NGINX rate limiting and security headers for DDoS protection

Configure NGINX with comprehensive rate limiting zones, security headers, and DDoS protection rules to secure your web applications against malicious traffic and automated attacks.

25 min 4 distros 131 views
security Intermediate

Implement Kubernetes network policies for pod-to-pod security and traffic isolation

Set up granular network security in Kubernetes using Calico CNI with default-deny policies and pod-to-pod communication rules for microsegmentation.

45 min 4 distros 111 views
security Advanced

Configure audit compliance automation with Ansible for security monitoring and reporting

Build comprehensive security audit compliance automation using Ansible playbooks to enforce security policies, monitor system configurations, and generate compliance reports across your Linux infrastructure fleet.

45 min 4 distros 95 views
security Intermediate

Set up audit log analysis dashboard with Grafana and Prometheus for security monitoring

Build a comprehensive security monitoring dashboard that collects Linux audit logs through auditd, exports metrics to Prometheus, and visualizes security events in Grafana with automated alerting for suspicious activities.

45 min 4 distros 91 views
security Advanced

Configure Linux audit system with SIEM integration for Splunk security monitoring

Set up auditd with custom security rules, configure Splunk Universal Forwarder for log shipping, and implement real-time monitoring workflows for comprehensive security event tracking and compliance reporting.

45 min 4 distros 167 views
security Intermediate

Configure Kubernetes network policies for enhanced cluster security

Implement granular network security controls in Kubernetes using Calico CNI. Learn to create ingress and egress policies, namespace isolation, and label-based microsegmentation for production clusters.

35 min 4 distros 119 views
security Advanced

Implement OpenResty rate limiting and API protection with Lua middleware

Build production-grade API protection using OpenResty's Lua middleware with advanced rate limiting algorithms, request throttling, and comprehensive security policies for high-traffic web applications.

45 min 4 distros 99 views
security Intermediate

Configure automated compliance scanning with OpenSCAP and audit reporting

Set up OpenSCAP security compliance scanning with automated systemd timers, generate HTML and XML audit reports, and configure SCAP security profiles for continuous compliance monitoring.

25 min 4 distros 164 views
security Advanced

Configure encrypted network storage with LUKS and NFS for secure file sharing

Set up enterprise-grade encrypted network storage by combining LUKS disk encryption with NFS file sharing. This advanced configuration provides secure, centralized file access across multiple systems while maintaining data protection at rest.

45 min 4 distros 175 views