• 한국어
  • English
  • Skip to content

    Hayden's Server Room

    A hands-on IT blog covering security, compliance, AI, fintech, and infrastructure. Written by a CISSP/CISA/PMP-certified professional in multinational corporate environments.

    • HOME
    • ABOUT
    • IT/Reg-Tech
      • Project
      • Tech-Trends
      • AI
      • Infrastructure
        • Platform
        • Server
        • O/S
          • Linux
          • Windows
        • Cloud
        • VMWare
      • Coding
        • Framework
      • DB
        • MS-Sql
        • Oracle
      • Network
      • Security
      • IT Compliance
      • Fin-Tech
      • ETCs
        • WordPress
    • Studying Chinese

    Category: ETCs

    • Home
    • ETCs
    Excel Xlookup Spill Error En Thumbnail

    Excel XLOOKUP #SPILL! Error: How to Fix!

    April 25, 2026 HaydenLeave a Comment on Excel XLOOKUP #SPILL! Error: How to Fix!

    If you’ve upgraded to Microsoft 365 and suddenly your XLOOKUP formulas are throwing a #SPILL! error where nothing used to […]

    ETCs, IT/Reg-Tech excel, SPILL error, XLOOKUP

    How to Watch YouTube Without Ads – 2026 Guide

    January 9, 2026 HaydenLeave a Comment on How to Watch YouTube Without Ads – 2026 Guide

    Tired of paying $13.99/month for YouTube Premium? Getting interrupted by ads while watching your favorite videos? As an IT security […]

    ETCs Brave browser, uBlock Origin, YouTube, YouTube Ad Free, YouTube Ads

    Emptied the Recycle Bin? You Can Still Get Your Files Back – 5 Free Recovery Tools

    December 12, 2025December 12, 2025 HaydenLeave a Comment on Emptied the Recycle Bin? You Can Still Get Your Files Back – 5 Free Recovery Tools

    “Wait, where did that file go?” That sinking feeling when you realize you just deleted an important report and emptied […]

    ETCs, Windows Disk Drill, EaseUS, file recovery software free, recover deleted files, Recuva, TestDisk PhotoRec, Windows File Recovery

    ‘Neo4j’ Version Support Lifecycle – LTS/EOL/EOS Policy

    November 17, 2025 HaydenLeave a Comment on ‘Neo4j’ Version Support Lifecycle – LTS/EOL/EOS Policy

    When running Neo4j, you’ve probably wondered, “How long can we safely use this version?” It’s especially concerning when you need […]

    ETCs EOL, EOS, graph database, LTS, Neo4j, version support policy

    ‘Apache Kafka’ Version Support Lifecycle : EOL/EOS Policies

    November 12, 2025 HaydenLeave a Comment on ‘Apache Kafka’ Version Support Lifecycle : EOL/EOS Policies

    If you’re running Apache Kafka in production, you’ve probably wondered: “How long will my current version be supported?” With Kafka […]

    Coding, ETCs, Platform, Security Apache Kafka, EOL, EOS, Kafka, Kafka versions

    ‘PHP’ Version Support Policy – EOS/EOL Schedule

    October 22, 2025 HaydenLeave a Comment on ‘PHP’ Version Support Policy – EOS/EOL Schedule

    If you work in web development, you’ve probably seen messages urging you to “upgrade your PHP version.” But it’s not […]

    ETCs EOL, EOS, PHP, PHP version

    Adobe Creative Cloud Licensing Policy Guide

    October 8, 2025October 9, 2025 HaydenLeave a Comment on Adobe Creative Cloud Licensing Policy Guide

    Adobe Creative Cloud’s licensing structure can be complex, especially with the significant changes rolling out in 2025. This comprehensive guide […]

    AI, Cloud, ETCs Adobe, Adobe Creative Cloud, Adobe License

    HPE Zerto(Data Protection Solution) End of Support Schedule (EOS/EOL)

    September 22, 2025 HaydenLeave a Comment on HPE Zerto(Data Protection Solution) End of Support Schedule (EOS/EOL)

    One of the most critical pieces of information for IT administrators managing HPE Zerto is the end of support schedule. […]

    ETCs, Security HPE, Zerto

    VMware NSX [CVE-2025-22243/22244/22245] XSS Vulnerability Patch Guide

    September 20, 2025 HaydenLeave a Comment on VMware NSX [CVE-2025-22243/22244/22245] XSS Vulnerability Patch Guide

    Important security update for VMware NSX administrators: On June 4, 2025, Broadcom (VMware) announced three critical Stored Cross-Site Scripting (XSS) […]

    ETCs CVE-2025-22243, CVE-2025-22244, CVE-2025-22245, VMware NSX, VMware Vulnerability

    ITIL, COBIT, ISO 20000 : IT Governance Framework Comparison

    August 31, 2025 HaydenLeave a Comment on ITIL, COBIT, ISO 20000 : IT Governance Framework Comparison

    Choosing an IT governance framework isn’t just a technical decision—it’s a strategic choice that directly impacts your organization’s future competitiveness. […]

    ETCs, IT Compliance, IT/Reg-Tech COBIT2019, governance framework, ISO20000, IT governance, ITIL4

    [Windows Security] AD GPO : Password Change Cycle Configuration

    August 23, 2025 HaydenLeave a Comment on [Windows Security] AD GPO : Password Change Cycle Configuration

    Managing password change cycles for user accounts in an Active Directory environment is a core component of security policy. This […]

    ETCs AD GPO, Password Change Cycle, Password Cycle, Windows security

    How to Check Exchange Server Mailbox Size and Capacity

    August 16, 2025 HaydenLeave a Comment on How to Check Exchange Server Mailbox Size and Capacity

    Managing Exchange servers inevitably leads to situations where you need to monitor mailbox sizes regularly. Whether you’re dealing with oversized […]

    ETCs Exchange mailbox size, Exchange Server, mailbox size

    Posts navigation

    Older posts

    Language

    Categories

    • IT/Reg-Tech (260)
      • AI (24)
      • Coding (73)
        • Framework (16)
      • DB (29)
        • MS-Sql (1)
        • Oracle (4)
      • ETCs (13)
      • Fin-Tech (5)
      • Infrastructure (168)
        • Cloud (11)
        • O/S (44)
          • Linux (11)
          • Windows (32)
        • Platform (91)
        • Server (20)
        • VMWare (20)
      • IT Compliance (5)
      • Network (18)
      • Project (1)
      • Security (93)
      • Tech-Trends (12)
      • WordPress (5)

    Recent Posts

    • What Is RAG? How AI Learns to Stop Making Things Up
      If you’ve ever watched an AI confidently state something completely wrong, you’ve witnessed hallucination firsthand. RAG — Retrieval-Augmented Generation — is the architectural pattern… Read more: What Is RAG? How AI Learns to Stop Making Things Up
    • Excel XLOOKUP #SPILL! Error: How to Fix!
      If you’ve upgraded to Microsoft 365 and suddenly your XLOOKUP formulas are throwing a #SPILL! error where nothing used to fail — you’re not… Read more: Excel XLOOKUP #SPILL! Error: How to Fix!
    • Meta’s AI Glasses — The Post-Smartphone Era Is Already Here
      In 2026, a device that surfaces information in your line of sight without pulling out your phone — and lets you control it with… Read more: Meta’s AI Glasses — The Post-Smartphone Era Is Already Here
    • Notion AI vs Obsidian : Who Wins the Productivity Tool War?
      In 2026, the two giants of the productivity tool market are still Notion and Obsidian. One is a San Francisco unicorn valued at $10… Read more: Notion AI vs Obsidian : Who Wins the Productivity Tool War?
    • Why Discord Owns Gen Z’s Online Communities
      Ask a Gen Z college student what app they use to hang out with friends online, and the answer probably isn’t Instagram DMs or… Read more: Why Discord Owns Gen Z’s Online Communities

    Recent Comments

    No comments to show.

    Archives

    • April 2026
    • March 2026
    • February 2026
    • January 2026
    • December 2025
    • November 2025
    • October 2025
    • September 2025
    • August 2025
    • July 2025
    May 2026
    M T W T F S S
     123
    45678910
    11121314151617
    18192021222324
    25262728293031
    « Apr    
    Copyright © 2026 Hayden's Server Room All rights reserved. Theme: Flash by ThemeGrill. Powered by WordPress
    • Privacy Policy