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PXE Boot Menu with System Center Configuration Manager

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We are considering expanding the capabilities of System Center Configuration Manager (a product for IT infrastructure management) when booting user PCs over the network using PXE. We create a boot menu based on PXELinux with System Center functionality and add features for antivirus scanning, diagnostic and recovery images. At the end of the article, we touch upon the features of System Center 2012 Configuration Manager working together with Windows Deployment Services (WDS) […]

Adding WDS versatility

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Good afternoon, dear Habr residents! The aim of this article is to provide a brief overview of the capabilities for deploying various systems using WDS (Windows Deployment Services). The article will include brief instructions for deploying Windows 7 x64, Windows XP x86, Ubuntu x64, and incorporating useful tools for network booting such as Memtest and Gparted. The narrative will unfold in order […]

Extending WDS functionality: adding UEFI boot capability

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Hello everyone! This article describes the steps necessary to add UEFI boot capabilities to your WDS. That is, the instruction in this article assumes that you already have approximately the following configuration: 1. Windows Server 2012R2 (or later) 2. Fully configured DHCP for working with WDS 3. The WDS itself 4. IIS 5. […]

CASE Method: Human Monitoring

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Dziiiiiing! It's 3 AM, you're in the middle of a wonderful dream, and suddenly — a phone call. You're on duty this week, and it seems something has happened. An automated system is calling for you to investigate what's going on. This is an important moment in managing modern computer systems, but let's see how to make notifications more user-friendly. Meet the monitoring philosophy that has emerged over several decades of my duties […]

Microservices: Size Matters, Even If You Have Kubernetes

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On September 19, the first themed meetup HUG (Highload++ User Group) dedicated to microservices took place in Moscow. The report titled 'Operating Microservices: Size Matters, Even If You Have Kubernetes' shared extensive experience from the company Flant in managing projects with microservice architecture. It will primarily benefit all developers considering […]

DCIM – The Key to Data Center Management

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According to forecasts by analysts from iKS-Consulting, by 2021, the number of server racks among the largest data center service providers in Russia will reach 49 thousand. Meanwhile, globally, according to Gartner, the number has long exceeded 2.5 million. For modern enterprises, data centers are invaluable assets. The demand for resources for data storage and processing is continually growing, and along with […]

Netplan and How to Properly Set It Up

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Ubuntu is an amazing operating system; I hadn't worked with Ubuntu server for a long time, and it didn't make sense to update my Desktop from the stable version. Recently, I encountered the fresh release of Ubuntu server 18.04, and I was astonished to realize how far behind I had fallen and that I couldn't configure the network because the good old system […]

A Small Backdoor on Flask or How to Manage a Computer in a Local Network

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Hello, Habr! Recently I watched a downloaded version of the programming stream 'How to Create Your Web Application on Flask'. I decided to solidify my knowledge with some project. I wasn't sure what to write for a long time, and then the idea struck me: 'Why not create a mini backdoor on Flask?'. The first implementation options and possibilities for the backdoor immediately came to mind. But I decided […]

Random Numbers and Decentralized Networks: Practical Applications

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Introduction 'Generating random numbers is too important to leave to chance' Robert Coveyou, 1970 This article is dedicated to the practical application of solutions that utilize collective random number generation in untrusted environments. Briefly — how and for what purposes randomness is used in blockchains, and a bit about how to distinguish 'good' randomness from 'bad'. Generating truly random numbers is […]

Threat Hunting: How to Protect Against 5% of Threats

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95% of cybersecurity threats are known, and you can defend against them using traditional means such as antivirus programs, firewalls, IDS, and WAF. The remaining 5% of threats are unknown and the most dangerous. They account for 70% of the risk to a company because they are very difficult to detect and even harder to protect against. Examples of 'black swans' include ransomware epidemics like WannaCry, […]

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