December 2020 - Page 54 of 62

How To Create a High Availability HAProxy Setup with Corosync, Pacemaker, and Reserved IPs on Ubuntu 14.04

• December 5, 2020
• Linux
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This tutorial will show you how to create a High Availability HAProxy load balancer setup on the cloud provider, with the support of a Floating IP and the Corosync/Pacemaker cluster stack. The HAProxy load balancers will each be configured to split traffic between two backend application servers. If the primary load balancer goes down, the Floating IP will be moved to the secondary load balancer automatically, allowing service to resume.

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Как установить и использовать Docker в Ubuntu 18.04

• December 5, 2020
• Docker
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Предыдущая версия данной инструкции подготовлена finid. Docker — это приложение, которое упрощает управление процессами приложения в контейнерах * *. Контейнеры позволяют запускать приложения в…

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Reference: CSS Color Names

• December 5, 2020
• Tutorials
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A reference for the CSS named colors, including named colors from CSS3 and CSS4.

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An Introduction to Linux I/O Redirection

• December 5, 2020
• Linux
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The redirection capabilities built into Linux provide you with a robust set of tools used to make all sorts of tasks easier to accomplish. Whether you’re writing complex software or performing file management through the command line, knowing how to manipulate the different I/O streams in your environment will greatly increase your productivity.

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Oracle Linux 8 — container-tools:4.0 — security and stability fixes — required update (ELSA-2023-7202)

• December 4, 2020
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 4 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7202 Related CVEs: CVE-2023-29406 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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firewalld Runtime Rules Lost After Reboot

• December 4, 2020
• Tutorials
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🟡 Medium   ⏱ 5–30 min  Last verified: 4 December 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 […]

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Windows Server 2012 R2 — WSUS Synchronization Stalls and New Security Updates Never Appear — Fix & Prevention

• December 4, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 4 December 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Set Up Samba File Sharing on SLES 12

• December 4, 2020
• SUSE Linux Enterprise
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Introduction This tutorial covers How to Set Up Samba File Sharing on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

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How to Configure Server Manager on Windows Server 2012 R2

• December 4, 2020
• Tutorials
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How to Configure Server Manager on Windows Server 2012 R2 Server Manager is the primary management console introduced in Windows Server 2008 and significantly enhanced in Windows Server 2012 R2 to support multi-server management from a single pane of glass. On Windows Server 2012 R2, Server Manager provides a unified dashboard for installing and managing […]

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Working with Docker Containers

• December 4, 2020
• Docker
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In this tutorial, we’ll provide a brief overview of the relationship between Docker images and Docker containers. Then, we’ll take a more detailed look at how to run, start, stop, and remove containers.

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