📡
For network engineers
IPsec VPN Between Cisco and FortiGate: Interoperable Configuration
Cisco ↔ FortiGate IPsec VPN: IKEv2 AES-GCM, complete configurations, troubleshooting and common issues.
April 15, 2026
Technical resources
Original optics, documented by reference.
Buying guides, technical notes and manufacturer-reference resources for professional optical links.
Editorial scope
SFP through QSFP-DD · original manufacturer references · selection boundaries · procurement context
📡
For network engineers
Network Monitoring with Zabbix, Prometheus and Grafana: Complete Stack
Prometheus + Grafana + Telegraf monitoring stack: SNMP, streaming telemetry, dashboards and alerting.
April 15, 2026
📡
For network engineers
Infrastructure as Code with Terraform for Networking: A Practical Guide
Terraform for networking: Cisco, Fortinet, and cloud providers, state, workflows, modules, comparison with Ansible, and multi-cloud deployment.
April 15, 2026
📡
For network engineers
Layer 3 Inter-VLAN Routing: SVIs, Routed Ports, and Best Practices
Inter-VLAN routing with SVIs: comparison with router-on-a-stick, Cisco/Juniper/Aruba configuration, HSRP, ACLs, and DHCP relay.
April 15, 2026
📡
For network engineers
Multi-Area OSPF: Design and Configuration for Enterprise Networks
Multi-area OSPF: stub/NSSA/totally stubby areas, summarization, BFD, SHA-256, and a design for 2000 routers.
April 15, 2026
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For network engineers
BGP Route Reflector: High-Availability Design and Deployment
BGP Route Reflectors: design, HA clustering, ORR, Cisco IOS-XR/Juniper configuration, and monitoring.
April 15, 2026
📡
For network engineers
Wireshark for Network Analysis: Advanced Techniques for Engineers
Advanced Wireshark: display filters, TCP streams, VoIP, TLS decryption, BGP, Expert Info, and I/O graphs.
April 15, 2026
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For network engineers
Network Troubleshooting: A Structured Methodology for Engineers
Network troubleshooting: OSI methodology, tools, Cisco/Juniper commands, common issues, and packet captures.
April 15, 2026
📡
For network engineers
Segment Routing with IS-IS: Practical Migration and Configuration
SR-MPLS Segment Routing migration: comparison with LDP/RSVP, SRGB, SR-TE, FRR TI-LFA, Juniper/Cisco/Nokia.
April 15, 2026
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For network engineers
EVPN-VXLAN on Cisco Nexus: Complete Deployment Guide
Cisco Nexus NX-OS EVPN-VXLAN deployment: BGP underlay/overlay, anycast gateway, ESI LAG, VRF.
April 15, 2026
📡
For network engineers
NETCONF and YANG: Automating Networks with Data Models
NETCONF + YANG: data models, OpenConfig, gNMI, streaming telemetry, multi-vendor environments, and tools.
April 15, 2026
📡
For network engineers
Python for Network Automation: Netmiko and NAPALM in Practice
Python for network engineers: Netmiko, NAPALM, PyEZ, Nornir, Scapy, Jinja2, use cases, and skills.
April 15, 2026