chris

How To Deploy Rails Apps Using Unicorn And Nginx on CentOS 6.5 — step-by-step Linux tutorial on Progressive Robot

How To Deploy Rails Apps Using Unicorn And Nginx on CentOS 6.5

In this the cloud provider article, we are going to take a look at assembling a multi-layer deployment installation to host Rails based Ruby web applications. For this arrangement, we will use the ever-so-powerful, flexible and extremely successful Unicorn application server running behind Nginx. Although we will be building this structure on a single server for demonstration purposes, you can easily use multiple droplets to spread things and scale out easily — both horizontally and vertically!

Read more
Ubuntu 18.04 — moin — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — moin — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 November 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4629-1 Related CVEs: CVE-2020-15275 CVE-2020-25074 CVE-2017-5934 Upstream summary: Michael Chapman discovered that MoinMoin incorrectly handled certain cache actions. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-25074) […]

Read more
Oracle Linux 8 — bluez — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — bluez — vulnerability — patch and remediation guide (ELSA-2020-1912)

🟢 Low   ⏱ 5–15 min  Last verified: 29 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1912 Related CVEs: CVE-2018-10910 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Arch Linux — wordpress — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — wordpress — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202011-3 Related CVEs: CVE-2020-28040 CVE-2020-28039 CVE-2020-28038 CVE-2020-28037 CVE-2020-28036 CVE-2020-28035 CVE-2020-28034 CVE-2020-28033  +12 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 5.5.1-1. Fixed in: 5.5.3-1. Group: AVG-1257. Table of contents […]

Read more
How To Create a Multi-Node MySQL Cluster on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Create a Multi-Node MySQL Cluster on Ubuntu 16.04

MySQL cluster is a software technology which provides high availability and throughput. In short, there is one or more management nodes which control the data nodes (where data is stored). After consulting with the management node, clients (MySQL clients, servers, or native APIs) connect directly to the data nodes.

Read more
How To Configure a FreeIPA Client on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Configure a FreeIPA Client on CentOS 7

FreeIPA is an open-source security solution for Linux which provides account management and centralized authentication, similar to Microsoft’s Active Directory. In this tutorial, we will be configuring a CentOS 7 machine to authenticate against an existing FreeIPA server.

Read more
How to Configure Group Policy on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Group Policy on Windows Server 2016

How to Configure Windows Server 2016 Group Policy Group Policy is a powerful feature of Active Directory that enables centralized management and configuration of operating systems, applications, and user settings across an Active Directory environment. In Windows Server 2016, Group Policy is administered through the Group Policy Management Console (GPMC) and uses Group Policy Objects […]

Read more
Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2020-5473)

🟡 Medium   ⏱ 10–30 min  Last verified: 28 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5473 Related CVEs: CVE-2020-16166 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
CHAT