Tech Blog

32 articles

AI Collaboration1

Humans do physical, AI does logical — a record of splitting a production cluster expansion with an AI agent

A field record of splitting a production node addition with an AI agent — where the AI paid off, what it caught, the human calls that prevented an incident, and the AI’s own mistakes.

LLM Hallucination Audit Implementation

// BASTION Technical Explanation2026-06-13LLM Hallucination Audit ImplementationCross-checking the numbers AI

The more beautiful the design, the more we doubt it with real data — BASTION’s verification discipline before going to production

Before putting automated control into production infrastructure, we refute our own hypotheses with real data — BASTION's verification discipline.

Design based on the premise of “not trusting Agents” in a DMZ environment vulnerable to compromise

// BASTION Technical Overview 2026-05-13Design Premise: "Don't Trust the Agent" in a Potentially Compromised D

AI detects attack → Slack approval → automatic firewall block setup

2026.04 / Tech Blog / BASTION Built a System Where AI Detects Attacks → Slack Approval → Automatic Firewall Bl

We built a system where AI automatically detects device types and starts monitoring just by pointing syslog to it

2026.04 / Tech Blog / BASTIONBuilding a System Where AI Automatically Identifies Device Types and Starts Monit

A Story of AI Log Monitoring Detecting “Account Lockout Caused by a Hung PC”

2026.04 / Tech Blog / BASTION How AI Log Monitoring Detected "Account Lockout Caused by a Hung PC" BASTION's W

Building a System for Automated Infrastructure Log Analysis with Local LLM

2026.04 / Tech Blog / BASTION How We Built a System for Automatic Infrastructure Log Analysis with a Local LLM

Mechanism of Multi-Layer Correlation Campaign Detection

// BASTION Technical Explanation2026-05-10How Multi-Layer Correlation Campaign Detection WorksVisualizing atta

The Story of Local LLM Fabricating Monitoring Report Numbers and Countermeasures

The Story of a Local LLM Fabricating Numbers in Monitoring Reports, and How We Fixed It BASTION's AI monitorin

We built a mechanism to detect attacks invisible to individual systems through cross-system log correlation

2026.04 / Tech Blog / BASTION Building a System to Detect Attacks Invisible at the Individual Level Through Cr

Implementing an AI Active Firewall on a Web Server

2026.04 / Tech Blog / BASTION Implementing an AI Active Firewall on a Web Server We implemented a system where

Graduating from Slack Approval Gates to Fully Automated Blocking of Attack Source IPs

2026.04 / Tech Blog / BASTION Graduating from Slack Approval Gates: Moving to Fully Automated Attack Source IP

Lightweight Zero Trust Operations Model Implementation Guide

※This article is a compilation of discussions and experiences within our organization based on general securit

The AI Agent Told Its Own Operation “No” — AI Guardrails and Three-Layer Governance, a Record of Two DB-Migration Blocks

An AI agent's guardrail blocked its own dangerous operations twice before execution during a DB migration. A three-layer governance model from a real case.

Ten Pitfalls Hit With plink, PowerShell 5.1, and SQL Server 2022 — Entrusting Hands-On Windows Work to an AI Agent (SSH / Encoding / T-SQL)

Ten pitfalls from automating Windows/SQL Server with an AI agent on real machines: plink host-key pinning, CP932/BOM, cmd quoting, and GO-splitting.

Automating the Preprocessing of an Oracle 19c → SQL Server 2022 Migration With AI — a “Not a Single Row of Real Data” Claude Code Field Record

Oracle 19c to SQL Server 2022 migration preprocessing run by an AI agent (Claude Code) without real data: three control principles and zero-error verification.

Implementation Record: Balancing Accuracy and Determinism with Qwen2.5-14B + GPUStack

// BASTION Technical Explanation 2026-05-14 Implementation Record: Achieving Both Accuracy and Determinism wit

Resolving the issue where pipeline_parallel=2 crashes on V100

Tech BlogGPUStackvLLMTesla V100Multi-Node GPU Cluster Operation Notes Resolving pipeline_parallel=2 Cra

GPUStack v2.1.1: Resolving All Multi-Node Inference Startup Issues

Tech Blog GPUStack Multi-Node vLLM Tesla V100 TroubleshootingGPU Cluster Operations Notes GPUStack v2.1.1 Mult

The approach and pitfalls when upgrading Dify from v1.9.2 to v1.13.3

Infrastructure / Self-hosted AI Platform How to Upgrade Dify from v1.9.2 to v1.13.3 and Common Pitfalls Upgrad

Steps to Connect Bestnet Cloud and GPU-VPS via 10G Private Network and Implement a GPUStack Cluster

How-to BESTNET-CLOUD GPU-VPS GPUStack 10G Private Network NFS Shared CacheTech Blog / Infrastructure Build Gui

Migration Story: GPUStack from v0.7.1 to v2.1.1

Tech Blog GPUStack Docker Migration NFS Shared Cache GPU Cluster Operations Notes Migrating GPUStack from v0.7

Installing NVIDIA Driver and CUDA 12.9 for Tesla V100 on Ubuntu 24.04 VM in Proxmox VE

Proxmox VE / Ubuntu 24.04 / NVIDIA CUDA Installing NVIDIA Driver and CUDA 12.9 on Tesla V100 in Ubuntu 24.04 V

Installing NVIDIA Driver and CUDA on Rocky Linux 9.3

Installation Steps STEP1. Add the Official NVIDIA Repository Register the official NVIDIA CUDA repository for

We tried migrating PRTG network device monitoring definitions to Zabbix using Claude Code [Continued]

Claude Code を使って PRTG のネットワーク機器監視定義を Zabbix へ移行してみた【続編】 Migration / Monitoring Using Claude Code to Migrate PR

Migrating PRTG UPS Monitoring Definitions to Zabbix in 30 Minutes Using Claude Code

Migration / Monitoring I Migrated PRTG UPS Monitoring Definitions to Zabbix in 30 Minutes Using Claude Code Ju

Setting Up Redmine on BESTNET-CLOUD

BESTNET Tech Blog Setting Up Redmine on BESTNET-CLOUD Ubuntu 24.04 / Apache + Passenger / PostgreSQL / HTTPSSe

I Tried Installing OpenClaw on Ubuntu 24.04

Infrastructure / Self-hosted AI Agent Installing OpenClaw on Ubuntu 24.04 Following Windows Server 2019 and Wi

I Tried Natively Installing OpenClaw on Windows 11

Infrastructure / Self-hosted AI Agent Native Installation of OpenClaw on Windows 11 Previously, we verified na

Trying It in a Deprecated Environment: Installing OpenClaw on Windows Server 2019

Tried Running in an Unsupported Environment: Installing OpenClaw on Windows Server 2019 (Complete Edition) Inf

The Story of Turning a Team into a “Pseudo-BMI”

※The content of this article is based on the author's personal experience and views, and does not represent th