🔐 SIEM & XDR — Wazuh
Wazuh Suite
View DocsFull Wazuh SIEM/XDR stack: installation (indexer, server, dashboard), SSO via Keycloak, Docker monitoring, container runtime monitoring, file integrity monitoring, malware detection + Slack alerts, and CloudWatch log shipping.
🌐 Networking & Firewall
iptables & IPVS
View DocsLinux iptables introduction and IPVS load balancer with NGINX.
VPN — OpenVPN vs NetBird
View DocsVPN fundamentals and a comparison between OpenVPN and Netbird.
🏗️ High Availability
PostgreSQL HA Cluster
View DocsSetting up a PostgreSQL high-availability cluster on Linux.
etcd 3-Node Cluster
View DocsSetting up a 3-node etcd cluster for distributed key-value storage.
HAProxy + Keepalived
View DocsBuilding an HA load balancer with HAProxy and Keepalived for VIP failover.
⚙️ Kernel & eBPF
Linux Kernel & eBPF
View DocsLinux kernel internals and the importance of eBPF for modern observability and security.