// FIELD NOTES

The SAMURAI Blog

Practical writeups on multi-vendor networks, fabric design, change detection, and the engineering behind running thousands of endpoints through one pipeline.

SHA-256
Guide2026-06-11

Choosing the best network monitoring tools for multi-vendor networks

An honest guide to SolarWinds, PRTG, Zabbix, LibreNMS, and Nagios, and where a self-hosted multi-vendor platform fits.

5 min readRead
Engineering2026-05-20

How we detect changes without relying on audit logs

How stripping volatile fields and hashing the rest eliminates false-positive diffs, and catches the changes audit logs never record.

4 min readRead
Deep Dive2026-05-06

Multi-vendor path tracing: the hard parts

Tracing a packet across IOS, NX-OS, and PAN-OS means reconciling different ACL syntaxes, route table formats, and zero shared conventions.

4 min readRead
SP1SP2LF1LF2LF3LF4
Architecture2026-04-22

Correlating thousands of endpoints without a CMDB

MAC tables, ARP, DHCP snooping, CDP/LLDP, 802.1X, and APIC hosts: stitched together in the right order, they replace a stale spreadsheet.

4 min readRead
Operations2026-04-08

APIC clustering: failover without the flapping

Configurable thresholds and cooldown windows keep your Cisco ACI fabric monitored even when controllers go down.

4 min readRead
#
Product2026-03-25

From six browser tabs to one dashboard

The operational pain that started SAMURAI, and the design decisions that let a single read-only surface replace APIC, Panorama, FMC, ISE, and a stack of SSH terminals.

4 min readRead
Operations2026-03-11

Deploying SAMURAI in air-gapped environments

A single docker load, an offline IEEE OUI database, and TLS that assumes self-signed certificates: everything you need to run SAMURAI without internet access.

4 min readRead

Field notes, straight to your inbox.

Deep dives on multi-vendor architecture, fabric design, change-detection algorithms, and the engineering behind SAMURAI.

Occasional emails, only when there is something worth reading. Unsubscribe any time.