Server and Virtualisation

Server Administration, Windows Server administration, Nginx, Apache, MySQL, PostgreSQL, MariaDB, MongoDB, VMware, vCenter, ESXi, Proxmox VE, Hyper-V, KVM, QEMU, libvirt, container, server monitoring, server security, SSH, remote access, FTP, SFTP, server performance, server hardening, iSCSI, NFS, SMB, CIFS, DNS server, DHCP server, web server, bare metal, rack server, IPMI, BIOS, RAID

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Cybersecurity

Zero-Day on the Market: $220K Exploit Targets Windows Remote Desktop Services (CVE-2026-21533)

Remote Desktop Services (RDS) has come under renewed scrutiny after reports that a working exploit for CVE-2026-21533 — an elevation-of-privilege vulnerability in Windows Remote Desktop Services — was listed for sale on a dark web forum for $220,000. The listing and surrounding reporting are factual and straightforward: a recently created account advertised a claimed zero-day exploit, observers recorded the posting, and vendor and government advisories identify the underlying vulnerability and…

Saugata DattaMar 9, 20264 min read591

Cloud Computing

VoidLink Malware Framework: Key Points on How It Targets Kubernetes and AI Workloads

Title: VoidLink Malware Framework: Key Points on How It Targets Kubernetes and AI Workloads Overview VoidLink is a modular malware framework observed targeting cloud-native environments, with emphasis on Kubernetes clusters and AI infrastructure. Goal: persistence, lateral movement, data exfiltration, and abuse of compute (e.g., model theft, crypto-mining, or training/serving misuse). Modularity enables plugins for container escape, kubeconfig harvesting, and targeted abuse of GPU resources. Threat model Targets: misconfigured clusters, exposed…

Saugata DattaMar 5, 20264 min read639

Azure

Enhanced Storage Resiliency with Azure NetApp Files Elastic Zone‑Redundant Service

Data resiliency is a baseline requirement for modern enterprise applications. Short interruptions or data loss can cascade into regulatory, financial, and reputational consequences. Azure NetApp Files (ANF) Elastic zone‑redundant storage (ANF Elastic ZRS) is a managed, multi‑AZ file storage option built on Azure’s ZRS architecture that aims to deliver synchronous multi‑zone replication, automatic failover, and enterprise ONTAP data management features in a single volume. This post summarizes the service’s capabilities,…

Saugata DattaMar 5, 20264 min read828

Microsoft

When an Upgrade Breaks the Network: Windows 11 23H2→25H2 and the 802.1X Policy Wipe

A quietly persistent bug in in-place Windows upgrades has resurfaced across recent Windows 11 version jumps and is creating a painful, real-world problem for enterprise IT teams: wired 802.1X authentication profiles applied by Group Policy are being deleted during some upgrades, leaving machines offline until a manual recovery is performed. What looks like a routine OS update can turn into a multi-device outage unless administrators prepare ahead. This article explains…

Saugata DattaMar 4, 20264 min read685

AI Agents and Frameworks

When Local Trust Breaks: The OpenClaw 0-Click Vulnerability and What Developers Must Do Now

The speed at which developer-facing AI agents have been adopted is staggering — and rapid adoption often outpaces secure design. A recent, high-impact vulnerability in OpenClaw demonstrates how a single innocuous browser visit can be transformed into a full agent takeover. For developers and security teams, this is a reminder that conveniences like “localhost-first” assumptions carry real risk. This post explains the vulnerability in accessible terms, why it matters especially…

Saugata DattaMar 1, 20264 min read630

Cloud Computing

Urgent Patching Required: Multiple VMware Aria Vulnerabilities Enable Remote Code Execution and Privilege Escalation

VMware’s Aria Operations — a cornerstone for many organizations’ cloud and infrastructure management — was thrust into the spotlight this week after Broadcom published VMSA-2026-0001, detailing three significant vulnerabilities. These flaws range from command injection that can lead to full remote code execution, to stored cross-site scripting that enables administrative actions, and a privilege escalation path from vCenter to Aria Operations. If you run Aria Operations as part of VMware…

Saugata DattaFeb 24, 20264 min read638

Automation

From The Blinking Cursor to The Thinking Machine: A Memoir of Automation

There is a specific kind of silence that only exists in a server room late at night. It isn’t actually quiet—the fans are screaming, the air conditioning is humming like a jet engine, and the hard drives are clicking in a chaotic rhythm. But for those of us who have spent the last two decades in IT, it feels silent because we are alone with the machine. For people like…

Saugata DattaFeb 11, 202610 min read966

Linux

Understanding GPO Inheritance and Blocking: Troubleshooting in Windows Domain Environments

Group Policy Objects (GPOs) are the backbone of centralized management in Windows domain environments. From enforcing password complexity to deploying software, GPOs shape the configuration and security of every computer within an organization. While the concept of GPO inheritance promises simplicity—policies defined high up in the Active Directory (AD) hierarchy flow down to all subordinate units—the reality encountered by administrators can quickly grow complex and bewildering. Recognizing how inheritance works…

Saugata DattaJan 20, 20263 min read835

Automation

Face-Off: Windows PowerShell vs PowerShell Core — The Real-World Transition

PowerShell has come a long way since its inception, becoming an essential tool not only for Windows administrators but also for IT professionals working across platforms. The transition from the original Windows PowerShell to PowerShell Core represents more than just a version change—it’s a fundamental evolution in how command-line automation and configuration management are approached in the modern IT landscape. For those who have relied on the familiar blue prompt…

Saugata DattaJan 16, 20264 min read1.1K

Azure

The Ultimate Command Center for AdGuard Home Power Users

The Problem: "Friction & Context Switching" Whether you run a single AdGuard Home instance on a Raspberry Pi or manage a fleet across multiple locations, the daily management experience often feels disconnected. To simply check if your server is online, pause protection for a quick test, or block an annoying tracker, you have to: It doesn't seem like much, but it adds up. That tiny bit of friction often means…

Saugata DattaJan 5, 20265 min read1K

Cloud Computing

S3 Bucket Audit Report using AWS PowerShell Script – Secure your S3 Buckets

If you are working on AWS environment and if you follow the news related to AWS, you will probably know there are many major data breach happened because of the human negligence, where vast amount of data kept without any protection like encryption, public access blocking. It is all because of human error. We create S3 bucket, and start using them, without realizing on how to keep them protected.…

Saugata DattaJun 16, 20202 min read8K

AWS

Do not trust any public VPN service, Create your own Secure SOCKS5 Proxy for just $5 – Be Free :)

If someone ask me to recommend one good proxy service, I would recommend none. Why should I trust any of them, as they can do what ever they want with my internet traffic, we don't have any control over them, nor we should trust their privacy policy. So, what will be the solution? Very simple, create your own in pubic cloud. There are many public cloud vendors out there offering…

Saugata DattaMay 11, 20205 min read4.7K

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