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LOG

Cisco Nexus FEX Troubleshooting: FEX Not Coming Online

Cisco Nexus FEX Troubleshooting: FEX Not Coming Online

Diagnose Cisco Nexus fabric extender problems: show fex states, fabric port pinning, host interface errors, image sync and vPC dual-homing issues.

admin admin 2026-09-29
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FortiGate VDOMs: Partitioning, Routing and Management

FortiGate VDOMs: Partitioning, Routing and Management

Configure FortiGate virtual domains (VDOMs) for multi-tenant or multi-role firewalls: enabling VDOM mode, inter-VDOM links, admin scope and HA interac

admin admin 2026-09-29
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OPNsense CARP and pfsync: Firewall HA That Fails Over

OPNsense CARP and pfsync: Firewall HA That Fails Over

Configure OPNsense CARP and pfsync for redundant firewalls: virtual IPs, state sync, XMLRPC config replication and the failover tests that prove it wo

admin admin 2026-09-29
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Windows NPS as RADIUS Server for 802.1X and VPN

Windows NPS as RADIUS Server for 802.1X and VPN

Deploy Windows Network Policy Server as a RADIUS server for 802.1X switches and VPN access: clients, policies, VLAN attributes and verification.

admin admin 2026-09-29
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ntopng: Real-Time Network Traffic Monitoring

ntopng: Real-Time Network Traffic Monitoring

Deploy ntopng for real-time traffic analysis: interface capture or NetFlow ingestion, host and flow drill-down, alerts, and tuning for busy links.

admin admin 2026-09-29
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SNMP Traps and snmptrapd: Alerting That Scales

SNMP Traps and snmptrapd: Alerting That Scales

Configure SNMP traps on network devices and receive them with snmptrapd: trap vs inform, v2c and v3 users, traphandle actions and verification.

admin admin 2026-09-29
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SmokePing: Latency and Packet Loss Monitoring

SmokePing: Latency and Packet Loss Monitoring

Install SmokePing to graph latency, jitter and packet loss over months: targets hierarchies, FPing and HTTP probes, alert rules and master-slave desig

admin admin 2026-09-29
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BorgBackup with systemd Timers: Deduplicated, Encrypted

BorgBackup with systemd Timers: Deduplicated, Encrypted

Deploy BorgBackup for deduplicated, encrypted Linux backups: repo init, create, prune, compact and systemd timers that survive reboots and missed runs

admin admin 2026-09-29
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Squid Proxy: ACLs, Authentication and Caching

Squid Proxy: ACLs, Authentication and Caching

Configure Squid as a caching forward proxy: ACL design, htpasswd or LDAP authentication, cache_dir sizing and refresh patterns for static content.

admin admin 2026-09-29
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Jenkins Pipeline for Network Config Compliance

Jenkins Pipeline for Network Config Compliance

Run a Jenkins pipeline that scans network configuration backups against policy packs on every commit, so drift is caught in CI instead of during an ou

admin admin 2026-09-29
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