How To Set Up a Remote Desktop with X2Go on Debian 10

April 5, 2020
Linux
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X2Go provides a working “cloud desktop,” complete with all the advantages of an always-online, remotely-accessible, and easily-scalable computing system with a very fast network. It is also more responsive and more secure than many VNC solutions. In this tutorial, you’ll use X2Go to create a Debian 10 XFCE desktop environment that you can access remotely. This “cloud desktop” will include the exact same utilities that you would obtain had you installed Debian 10 and XFCE on your local machine.

How to Set Up a Certificate Authority with OpenSSL on Debian 10

April 4, 2020
Linux
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Introduction Deploying set up a certificate authority with openssl on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. […]

How to Install Java and Configure JAVA_HOME on RHEL 7

April 4, 2020
Linux
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How to Install Java and Configure JAVA_HOME on RHEL 7 Java remains one of the most widely deployed application runtimes in enterprise environments, and RHEL 7 provides excellent support for running OpenJDK through its official repositories. Whether you are deploying a Spring Boot application, running Apache Tomcat, building microservices, or working with big data frameworks […]

How to Install containerd as a Container Runtime on RHEL 7

April 4, 2020
Linux
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How to Install containerd as a Container Runtime on RHEL 7 containerd is a high-performance, industry-standard container runtime that serves as the foundation beneath both Docker and Kubernetes. When Kubernetes deprecated the Dockershim in version 1.20 and removed it in version 1.24, containerd became the most widely adopted direct container runtime for Kubernetes clusters. Installing […]

How to Install Portainer on Debian 10

April 3, 2020
Linux
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Introduction This guide explains how to Install Portainer on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard repositories […]

RHEL 7 Yum Dependency Resolution Fails After EPEL Add

April 3, 2020
Linux
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🟡 Medium ⏱ 5–30 min Last verified: 3 April 2020 📖 ~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 […]

Windows Server 2019 Storage Spaces Virtual Disk Degraded After Power Event – Fix & Prevention

April 3, 2020
Tutorials
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🟠 High ⏱ 5–30 min Last verified: 3 April 2020 Affected versions: Windows Server 2019 📖 ~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 […]

How to Configure DNSSEC on RHEL 8

April 3, 2020
Linux
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DNS Security Extensions (DNSSEC) protect against cache poisoning and spoofing by cryptographically signing DNS records. On RHEL 8, you can enforce DNSSEC validation using either BIND 9 or Unbound, both available in the default repositories. This tutorial walks through configuring a validating resolver, testing zone signatures, and detecting failures. Securing your resolver is a foundational […]

RHEL 8 multipath devices intermittently flap and fail paths

April 2, 2020
Linux
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🟡 Medium ⏱ 5–30 min Last verified: 2 April 2020 📖 ~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 […]

How to Configure Static IP on Debian 9

April 2, 2020
Linux
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Introduction This guide explains how to Configure Static IP on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the standard […]

Networking

How To Set Up a Remote Desktop with X2Go on Debian 10

How to Set Up a Certificate Authority with OpenSSL on Debian 10

How to Install Java and Configure JAVA_HOME on RHEL 7

How to Install containerd as a Container Runtime on RHEL 7

How to Install Portainer on Debian 10

RHEL 7 Yum Dependency Resolution Fails After EPEL Add

Windows Server 2019 Storage Spaces Virtual Disk Degraded After Power Event – Fix & Prevention

How to Configure DNSSEC on RHEL 8

RHEL 8 multipath devices intermittently flap and fail paths

How to Configure Static IP on Debian 9

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