Security Security Banners: Hiding Application Banners (Service Banner Faking) Rinetd: Simply and Quickly Forward to Other Machines Rkhunter: Detection of rootkits and malware Vaultwarden: The great Password Manager Certificates Cert-Manager: automate your certificate management for Kubernetes Create a PKI Iptables Basic IPTables Commands Iptables: Configuration Examples Launch Firewall Rules Before Interfaces Come Up Nfqueue: Filter Thousands of IP Addresses (e.g., by Country) PacketFilter Introduction to Packet Filter Packet Filter: Fighting Against Brute Force Attacks Snort Introduction to IDS and SNORT Setting up Snort & BASE (Basic Analysis and Security Engine) VPN & Tunnels Cloudflared: Secure Tunnels for Kubernetes OpenVPN: Setting up OpenVPN on different platforms Stunnel: Creating an SSL Tunnel