https://blog.bsdguy.org/Recent content on netlogHugoen-usMon, 29 Jun 2026 00:00:00 +0000https://blog.bsdguy.org/posts/freeradius-daloradius-pppoe/Mon, 29 Jun 2026 00:00:00 +0000https://blog.bsdguy.org/posts/freeradius-daloradius-pppoe/Guía completa para instalar FreeRADIUS con backend MariaDB, desplegar daloRADIUS como interfaz web de gestión y conectar un servidor PPPoE MikroTik para autenticar usuarios con RADIUS.https://blog.bsdguy.org/posts/vyos-dhcp-server/Sat, 11 Apr 2026 00:00:00 +0000https://blog.bsdguy.org/posts/vyos-dhcp-server/Guía práctica para configurar el servidor DHCP en VyOS: subredes, opciones avanzadas, reservas estáticas y troubleshooting.https://blog.bsdguy.org/posts/vyos-primera-configuracion/Fri, 10 Apr 2026 00:00:00 +0000https://blog.bsdguy.org/posts/vyos-primera-configuracion/Guía práctica para dejar un router VyOS funcional desde cero: NAT masquerade, zonas de firewall, rutas estáticas y subinterfaces 802.1Q.https://blog.bsdguy.org/posts/mikrotik-dual-wan-balanceo/Tue, 07 Apr 2026 00:00:00 +0000https://blog.bsdguy.org/posts/mikrotik-dual-wan-balanceo/Configuración completa de balanceo de carga y failover sobre dos enlaces WAN en MikroTik RouterOS v7 usando PCC, mangle, routing tables y netwatch.https://blog.bsdguy.org/posts/opnsense-vlans-firewall/Tue, 07 Apr 2026 00:00:00 +0000https://blog.bsdguy.org/posts/opnsense-vlans-firewall/Configuración completa de 5 VLANs en OPNsense: asignación de IPs, aislamiento inter-VLAN vía firewall, permitir internet bloqueando RFC 1918, y hardening del perímetro.https://blog.bsdguy.org/posts/subnetting-reference/Tue, 07 Apr 2026 00:00:00 +0000https://blog.bsdguy.org/posts/subnetting-reference/A practical subnetting guide covering binary math, CIDR notation, VLSM, and common exam-style calculations — written for engineers who want to understand the why.https://blog.bsdguy.org/gallery/network-lab/Mon, 06 Apr 2026 00:00:00 +0000https://blog.bsdguy.org/gallery/network-lab/My home lab setup — routers, switches, and cable chaos.https://blog.bsdguy.org/posts/bgp-graceful-restart/Thu, 20 Nov 2025 00:00:00 +0000https://blog.bsdguy.org/posts/bgp-graceful-restart/A practical look at BGP Graceful Restart — the mechanism, its limitations, and when it genuinely improves convergence vs. when it&#39;s just theater.https://blog.bsdguy.org/posts/network-automation-ansible/Fri, 05 Sep 2025 00:00:00 +0000https://blog.bsdguy.org/posts/network-automation-ansible/Getting started with Ansible for network automation — without the cargo-culting.https://blog.bsdguy.org/posts/ospf-lsa-types/Sat, 14 Jun 2025 00:00:00 +0000https://blog.bsdguy.org/posts/ospf-lsa-types/A concise reference for OSPF LSA types 1–7, what they carry, and which routers originate them.https://blog.bsdguy.org/about/Mon, 01 Jan 2024 00:00:00 +0000https://blog.bsdguy.org/about/<p>Hey — I&rsquo;m a network engineer with a focus on large-scale infrastructure, routing protocols, and network automation.</p> <p>I write about things I&rsquo;m learning, breaking, and occasionally fixing.</p> <h2 id="what-i-work-with">What I work with</h2> <ul> <li><strong>Routing</strong>: BGP, OSPF, IS-IS</li> <li><strong>Automation</strong>: Ansible, Python (netmiko, NAPALM, pyATS)</li> <li><strong>Cloud networking</strong>: AWS VPC, Azure VNET, Transit Gateway</li> <li><strong>Vendors</strong>: Cisco IOS/IOS-XE/NX-OS, Juniper Junos, Arista EOS</li> <li><strong>Monitoring</strong>: Prometheus, Grafana, SNMP, gNMI/gRPC</li> </ul> <h2 id="why-this-blog">Why this blog</h2> <p>The internet is held together by people who spend their days staring at BGP tables, writing Jinja2 templates, and arguing about whether OSPF area 0 should span the DC fabric. This is a place for those people.</p>