Harden Windows RDP: NLA, RD Gateway, TLS Deployment
Enterprise steps to harden Windows RDP: enable NLA, restrict admin, bind TLS certificates, deploy RD Gateway with MFA, and lock down firewall and logging.
Configure systemd journald on Linux for Production Logging
Step by step guide to configure and harden systemd journald on Linux: persistent logs, rotation, compression, rate limits, forwarding, SELinux and troubleshooting.
Troubleshoot Windows slow boot: Drivers, Services, BCD
Practical, step by step troubleshooting for Windows slow boot, with commands and fixes for drivers, services, BCD, firmware, and disk I O.
Windows Event Forwarding: Deploy, Secure, and Troubleshoot
Step-by-step Windows Event Forwarding guide for admins: configure collectors and clients, GPOs, certificates, performance tuning, retention, and SIEM integration.
Optimize Hyper-V VM Storage Performance on Windows
Step-by-step troubleshooting and tuning guide for Hyper-V VM storage performance on Windows Server, covering VHDX, controllers, SMB3, Storage Spaces, NUMA, and benchmarking.
Linux Cybersecurity: Detect and Block DNS Exfiltration
Hands-on Linux cybersecurity guide to detect and block DNS exfiltration using Zeek, Suricata, nftables, packet indicators, Sigma examples, and alert triage.
Cybersecurity: Contain and Remediate Ransomware on Linux
Practical incident response playbook for IT pros to detect, contain, preserve evidence, recover files, restore services, and harden Linux servers against ransomware.
Cybersecurity: Detect Golden Ticket Attacks in AD
Hands-on Golden Ticket detection for Cybersecurity teams, with SIEM/Splunk/Elastic queries, Windows Event IDs, Sysmon rules, PowerShell tools, and containment steps.
Optimize NVMe SSD Performance on Linux Servers
Hands on guide to tune NVMe SSD performance on Linux: kernel and IO settings, nvme cli tips, mount options, fio benchmarks, and recommended configs.
Harden Linux SSH: Bastion Hosts, 2FA, and Auditing
Step-by-step Linux SSH hardening: deploy a bastion host, enforce SSH keys, add 2FA with OTP and YubiKey, and centralize audit logs for production systems.