60 articles found
Everything about SQL injection attacks and how to prevent them: parameterized queries in every language, ORM safety, stored procedures, WAF configuration, database hardening, and real-world attack case studies....
Master Docker networking from fundamentals to production: bridge, host, overlay, and macvlan networks explained with real configurations. Learn container DNS, network isolation, load balancing, and multi-host networking with Docker Swarm overlays....
Master Linux logging from basics to enterprise: journalctl queries, rsyslog configuration, log rotation, structured logging, and building a centralized logging pipeline with Elasticsearch, Logstash, and Kibana. Real production examples included....
Master SSH tunneling — local, remote, and dynamic port forwarding explained with real-world examples. Learn how to securely access remote databases, bypass firewalls, create SOCKS proxies, and set up persistent tunnels for production environments....
Your weekly roundup of the most important IT news, security advisories, tool updates, and career tips for system administrators and DevOps professionals....
Get to know Miles Everhart, one of Dargslan's most prolific authors with 21 published titles spanning Linux administration, cybersecurity, networking, and server management....
A comprehensive security hardening checklist for Linux production servers. Covers SSH hardening, firewall configuration, user management, kernel tuning, file permissions, intrusion detection, and ongoing security maintenance with actionable steps....
A comprehensive guide to Linux backup strategies and disaster recovery planning. Learn rsync, Borg, LVM snapshots, automated backup scripts, and the 3-2-1 backup rule with practical implementation examples....
Everything you need to know about Wazuh — the leading free, open-source SIEM and XDR platform. Covers architecture, agent deployment, intrusion detection, log analysis, file integrity monitoring, vulnerability detection, compliance (PCI DSS, HIPAA, GDPR), Wazuh vs Splunk vs ELK comparison, Docker deployment, custom rules, and real-world SOC integration....