authentication

Common Problems 114496

Slow SSH Login on RHEL 9 Servers

🟡 Medium   ⏱ 5–30 min  Last verified: 14 November 2024 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Set Up Remote Desktop Gateway on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Set Up Remote Desktop Gateway on Windows Server 2025

How to Set Up Remote Desktop Gateway on Windows Server 2025 Remote Desktop Gateway (RD Gateway) is a Windows Server role service that enables authorised users to connect to internal remote desktops and RemoteApp programs over HTTPS (port 443), without requiring a VPN connection. By tunnelling RDP traffic through an SSL-encrypted HTTPS connection, RD Gateway […]

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How to Configure Windows Update and WSUS on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure Windows Update and WSUS on Windows Server 2025

How to Configure Windows Update and WSUS on Windows Server 2025 Keeping Windows Server 2025 systems patched is one of the most impactful things you can do to reduce your organization’s attack surface. A significant proportion of successful cyberattacks exploit vulnerabilities for which patches were available weeks or months before the breach. Windows Server 2025 […]

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How to Perform Disaster Recovery Testing on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Perform Disaster Recovery Testing on Windows Server 2025

How to Perform Disaster Recovery Testing on Windows Server 2025 A disaster recovery plan that has never been tested is not a plan — it is a hypothesis. The uncomfortable truth that most IT organizations discover only during an actual disaster is that DR documentation written six months ago may not account for new servers, […]

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How to Set Up Windows Server 2025 Hotpatch (Azure Edition) — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Set Up Windows Server 2025 Hotpatch (Azure Edition)

How to Set Up Windows Server 2025 Hotpatch (Azure Edition) on Windows Server 2025 Rebooting servers to apply security patches has always been the most disruptive part of patch management. Every reboot means a maintenance window, application restart time, potential session disconnections, and the operational overhead of coordinating across teams. Windows Server 2025 Azure Edition […]

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How to Configure Remote Desktop Services on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure Remote Desktop Services on Windows Server 2025

How to Configure Remote Desktop Services on Windows Server 2025 Remote Desktop Services (RDS) on Windows Server 2025 provides far more than simple remote access to a server desktop. It is a full application delivery and virtual desktop platform capable of hosting multi-session Remote Desktop Session Host (RDSH) farms, publishing individual RemoteApp programs to clients, […]

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Common Problems 122582

sudo Stops Working After Package Upgrade

🟠 High   ⏱ 5–30 min  Last verified: 23 October 2024 Affected versions: FreeBSD 14 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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How to Configure sudo and Sudoers on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure sudo and Sudoers on RHEL 9

The sudo (superuser do) tool allows designated users to run commands with elevated privileges without sharing the root password. This is fundamental to the principle of least privilege: each administrator gets exactly the access they need for their role, no more. When access is misconfigured — for example with blanket ALL=(ALL) ALL entries or unsafe […]

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How to Configure Unattended Upgrades on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up SSH Keys on Ubuntu 24.04

SSH key authentication is far more secure than passwords. This guide covers generating an Ed25519 key pair and deploying it on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server with SSH running A user account on the server An SSH client on your local machine (Linux/macOS/Windows) Step 1 […]

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How to Install InfluxDB and Telegraf on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install InfluxDB and Telegraf on RHEL 9

InfluxDB 2.x is a purpose-built time-series database that excels at storing high-cardinality metrics with millisecond precision, while Telegraf is its companion agent that collects metrics from hundreds of input plugins and writes them directly to InfluxDB. Together they form the “TIG stack” backbone when paired with Grafana for visualisation. On RHEL 9, both packages are […]

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