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Linux VXLAN Configuration: ip link and Static VTEP Setup

Linux VXLAN Configuration: ip link and Static VTEP Setup

Create Linux VXLAN tunnels with ip link: vxlan id, dstport 4789, multicast group or static remote VTEP, FDB management, bridging, MTU and troubleshoot

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Cisco ASA Site-to-Site IPsec VPN CLI Configuration

Cisco ASA Site-to-Site IPsec VPN CLI Configuration

Configure a Cisco ASA LAN-to-LAN IPsec VPN on the CLI: IKEv1 policy, transform set, interesting-traffic ACL, tunnel-group, crypto map and NAT exemptio

admin admin 2026-09-09
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rsyslog Central Log Server: Receive and Forward Logs

rsyslog Central Log Server: Receive and Forward Logs

Build an rsyslog central log server: enable UDP/TCP reception, store logs per host, forward clients with @@, and add queues, TLS and logrotate.

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NAPALM Network Automation: Getters, Config Diff and Load

NAPALM Network Automation: Getters, Config Diff and Load

NAPALM Python tutorial: one API across IOS, EOS and Junos. Get structured data from getters, compare_config diffs, then load, commit or roll back.

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PAM4 vs NRZ: Modulation Behind 100G, 400G and 800G Optics

PAM4 vs NRZ: Modulation Behind 100G, 400G and 800G Optics

PAM4 vs NRZ explained for 100G, 400G and 800G optics: bits per symbol, the 9.5 dB SNR penalty, why KP4 FEC is mandatory, TDECQ, DSP and link troublesh

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NetApp ONTAP S3: Object Store Server and Bucket Setup

NetApp ONTAP S3: Object Store Server and Bucket Setup

Enable S3 object storage on ONTAP 9: create an object store server, provision buckets and users with access keys, attach policies, then verify with th

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Cisco Nexus NX-OS OSPF Configuration with Examples

Cisco Nexus NX-OS OSPF Configuration with Examples

Configure OSPFv2 on Cisco Nexus NX-OS switches: feature ospf, router-id, per-interface area assignment, timers, redistribution and neighbour verificat

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Palo Alto Site-to-Site IPsec VPN: CLI Configuration

Palo Alto Site-to-Site IPsec VPN: CLI Configuration

Configure a Palo Alto site-to-site IPsec VPN from CLI: crypto profiles, tunnel interface, IKE gateway, auto-key tunnel, static route, NAT and verifica

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FortiGate Active-Passive HA Cluster: CLI Setup Guide

FortiGate Active-Passive HA Cluster: CLI Setup Guide

FortiGate FGCP active-passive HA from the CLI: heartbeat design, priority and override, session pickup, failover timers, firmware upgrades and diagnos

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Arista EOS AAA: TACACS+ and RADIUS Configuration

Arista EOS AAA: TACACS+ and RADIUS Configuration

Arista EOS AAA with TACACS+ and RADIUS: server keys, server groups, aaa authentication login default, exec authorization for roles, command accounting

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