https://blog.gntech.me/tags/networking/ Recent content in Networking on GnTech Blog Hugo en-us Sat, 20 Jun 2026 10:30:00 -0400 https://blog.gntech.me/posts/2026-06-20-homelab-10gbe-networking-mikrotik-proxmox/ Sat, 20 Jun 2026 10:30:00 -0400 https://blog.gntech.me/posts/2026-06-20-homelab-10gbe-networking-mikrotik-proxmox/ Plan and deploy 10GbE networking for your homelab — MikroTik CRS switch configuration, SFP+ cabling choices, Proxmox host integration, and Linux NIC tuning for maximum throughput. https://blog.gntech.me/posts/2026-06-18-linux-tcp-bbr-congestion-control-proxmox-docker-lxc/ Thu, 18 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-18-linux-tcp-bbr-congestion-control-proxmox-docker-lxc/ Step-by-step guide to enabling TCP BBR congestion control on Linux for Proxmox hosts, Docker containers, and LXC. Includes sysctl tuning, kernel module loading, iperf3 benchmarks, and practical performance gains for homelab and remote streaming. https://blog.gntech.me/posts/2026-06-17-cilium-cni-k3s-ebpf-networking-homelab/ Wed, 17 Jun 2026 11:00:00 -0400 https://blog.gntech.me/posts/2026-06-17-cilium-cni-k3s-ebpf-networking-homelab/ Replace K3s default Flannel with Cilium CNI for eBPF-powered networking, kube-proxy replacement, Hubble observability, and identity-based network policies in your homelab. https://blog.gntech.me/posts/2026-06-16-proxmox-firewall-security-hardening/ Tue, 16 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-16-proxmox-firewall-security-hardening/ Harden Proxmox VE with datacenter-level firewall rules, dynamic IPSets for trusted management networks, fail2ban protection, and cluster-wide security policies. https://blog.gntech.me/posts/2026-06-15-mikrotik-routeros-container-apps-deployment/ Mon, 15 Jun 2026 16:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-mikrotik-routeros-container-apps-deployment/ Deploy Gitea, Home Assistant, and other services on MikroTik RouterOS with the new App catalog. One-click container setup with automatic firewall, NAT, and networking. https://blog.gntech.me/posts/2026-06-15-opnsense-virtual-firewall-proxmox-homelab/ Mon, 15 Jun 2026 14:00:00 -0400 https://blog.gntech.me/posts/2026-06-15-opnsense-virtual-firewall-proxmox-homelab/ Deploy OPNsense as a virtual firewall in Proxmox for full network segmentation, VLAN routing, IDS/IPS with Suricata, and WireGuard VPN — real configs included. https://blog.gntech.me/posts/2026-06-11-docker-proxy-configuration-homelab/ Thu, 11 Jun 2026 11:00:00 -0400 https://blog.gntech.me/posts/2026-06-11-docker-proxy-configuration-homelab/ Configure HTTP/HTTPS proxy for Docker daemon, CLI, and individual containers in your homelab. Covers daemon.json, systemd override, Compose env vars, and NO_PROXY best practices. https://blog.gntech.me/posts/2026-06-09-linux-network-performance-tuning-homelab/ Tue, 09 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-09-linux-network-performance-tuning-homelab/ Optimize Linux network performance on Proxmox and Docker hosts with ethtool ring buffer tuning, irqbalance configuration, multiqueue RSS/RPS, and tc traffic shaping — with benchmarks and systemd persistence. https://blog.gntech.me/posts/2026-06-09-docker-macvlan-homelab-networking/ Tue, 09 Jun 2026 16:00:00 -0400 https://blog.gntech.me/posts/2026-06-09-docker-macvlan-homelab-networking/ Give Docker containers direct IPs on any VLAN using MACVLAN and IPVLAN. A practical homelab guide with real Compose configs, routing, and use cases. https://blog.gntech.me/posts/2026-06-08-mikrotik-routeros7-vrf-configuration/ Mon, 08 Jun 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-06-08-mikrotik-routeros7-vrf-configuration/ Configure VRFs on MikroTik RouterOS 7 for multi-tenant network segmentation. Static routes, BGP VRF, route leaking, and firewall integration for homelab routing. https://blog.gntech.me/posts/2026-06-07-librenms-docker-deployment-network-monitoring-homelab/ Sun, 07 Jun 2026 18:30:00 -0400 https://blog.gntech.me/posts/2026-06-07-librenms-docker-deployment-network-monitoring-homelab/ Deploy LibreNMS in Docker for comprehensive homelab network monitoring. SNMP autodiscovery, alerting, and graphing for MikroTik, Proxmox, Linux hosts, and switches. https://blog.gntech.me/posts/2026-06-07-linux-bridge-networking-debugging-docker-proxmox/ Sun, 07 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-07-linux-bridge-networking-debugging-docker-proxmox/ Debug Docker and Proxmox bridge networks with tcpdump, brctl, and bridge fdb. Fix container connectivity, VLAN tagging, and MAC learning issues in your homelab. https://blog.gntech.me/posts/2026-06-07-systemd-networkd-homelab-networking-bridges-vlans-bonds/ Sun, 07 Jun 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-06-07-systemd-networkd-homelab-networking-bridges-vlans-bonds/ Configure bridges, VLAN interfaces, and bond links with systemd-networkd on Debian 13 and Ubuntu 24.04. Practical homelab networking without NetworkManager or netplan. https://blog.gntech.me/posts/2026-06-06-docker-nftables-firewall-backend-homelab/ Sat, 06 Jun 2026 21:00:00 +0000 https://blog.gntech.me/posts/2026-06-06-docker-nftables-firewall-backend-homelab/ Migrate Docker from iptables to nftables with the native firewall backend. Configure, verify, and troubleshoot Docker nftables support on Debian 13 and Ubuntu 24.04 homelab hosts. https://blog.gntech.me/posts/2026-06-05-gluetun-vpn-gateway-docker-wireguard/ Fri, 05 Jun 2026 16:00:00 -0400 https://blog.gntech.me/posts/2026-06-05-gluetun-vpn-gateway-docker-wireguard/ Route Docker containers through a WireGuard VPN with Gluetun split-tunnel gateway. Full Compose config, kill switch, qBittorrent integration, and Traefik compatibility for homelab privacy. https://blog.gntech.me/posts/2026-06-04-mikrotik-routeros7-routing-filters-pbr/ Thu, 04 Jun 2026 16:00:00 -0400 https://blog.gntech.me/posts/2026-06-04-mikrotik-routeros7-routing-filters-pbr/ Master MikroTik RouterOS 7 routing filters and policy-based routing. Configure route maps, BGP filters, mangle rules, and routing marks for traffic steering in your network lab. https://blog.gntech.me/posts/2026-06-01-prometheus-snmp-exporter-mikrotik-monitoring/ Mon, 01 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-01-prometheus-snmp-exporter-mikrotik-monitoring/ Deploy Prometheus SNMP Exporter with Docker to monitor MikroTik routers, switches, and UPS units. Real SNMP metrics, v2c/v3 config, and Grafana dashboards for homelab observability. https://blog.gntech.me/posts/2026-05-31-frrouting-bgp-linux-dynamic-routing-homelab/ Sun, 31 May 2026 12:00:00 -0400 https://blog.gntech.me/posts/2026-05-31-frrouting-bgp-linux-dynamic-routing-homelab/ Deploy FRRouting on Linux for BGP dynamic routing in your homelab. Covers installation, iBGP/eBGP peering with MikroTik, route filtering, and OSPF redistribution with real configs. https://blog.gntech.me/posts/2026-05-31-mikrotik-routeros-7-23-stable-upgrade-guide/ Sun, 31 May 2026 07:30:00 -0400 https://blog.gntech.me/posts/2026-05-31-mikrotik-routeros-7-23-stable-upgrade-guide/ RouterOS 7.23 stable: HTTPS-default upgrades, bridge MAC sync for MLAG, WiFi VLAN fixes, and DHCP snooping enhancements. Full changelog and upgrade guide. https://blog.gntech.me/posts/2026-05-29-haproxy-docker-load-balancer/ Fri, 29 May 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-05-29-haproxy-docker-load-balancer/ Deploy HAProxy with Docker Compose as a TCP/HTTP load balancer for your homelab — SSL termination, health checks, stats dashboard, and backend failover configuration.