IT, Cloud & DevOps Blog

FreeBSD 12 — mariadb55-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

• June 28, 2019
• BSD
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🟠 High   ⏱ 15–60 min  Last verified: 28 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MariaDB — Vulnerability in C API Related CVEs: CVE-2015-3194 CVE-2015-4792 CVE-2015-4802 CVE-2015-4807 CVE-2015-4815 CVE-2015-4826 CVE-2015-4830 CVE-2015-4836  +12 more Upstream summary: MariaDB reports: Difficult to exploit vulnerability allows unauthenticated attacker with […]

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Alpine Linux edge — xkbcomp — multiple vulnerabilities (4 CVEs) — patch and remediation guide

• June 28, 2019
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.5.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — xkbcomp 1.5.0-r0 Related CVEs: CVE-2018-15853 CVE-2018-15859 CVE-2018-15861 CVE-2018-15863 Upstream summary: Alpine main repository for vedge ships xkbcomp 1.5.0-r0 which addresses CVE-2018-15853. Table of contents Symptom […]

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How To Convert Strings to Integers in Python 3

• June 28, 2019
• Python
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Strings can be converted to integers by using the int() method. If your string does not have decimal places, you’ll most likely want to convert it to an integer by using the int() method. In this quick tutorial, you’ll learn how to convert a string to an integer.

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How to Deploy a Ruby on Rails Application on RHEL 7

• June 28, 2019
• Linux
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How to Deploy a Ruby on Rails Application on RHEL 7 Ruby on Rails is a full-featured web application framework that follows the Model-View-Controller (MVC) pattern and emphasizes convention over configuration. Deploying a Rails application on RHEL 7 in a production-grade configuration requires several components working together: Rails itself running under Puma (a multi-threaded Ruby […]

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How To Address Crashes in MySQL

• June 28, 2019
• Linux
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The most common cause of crashes in MySQL is that it stopped or failed to start due to insufficient memory. To check this, you will need to review the MySQL error log after a crash. First, attempt to start the MySQL server by typing: sudo systemctl start mysql Then…

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How to Configure PostgreSQL Replication on SLES 15

• June 27, 2019
• SUSE Linux Enterprise
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Introduction This tutorial covers How to Configure PostgreSQL Replication on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: zypper refresh […]

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RHEL 7 yum dependency conflict after enabling mixed repositories

• June 27, 2019
• Linux
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🟠 High   ⏱ 5–30 min  Last verified: 27 June 2019 Affected versions: RHEL 7 📖 ~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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openSUSE Tumbleweed — hunspell — vulnerability — patch and remediation guide

• June 27, 2019
• Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:1717-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-16707 Upstream summary: Hunspell 1.7.0 has an invalid read operation in SuggestMgr::leftcommonsubstring in suggestmgr.cxx. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Deploy Python Application on Kubernetes with Okteto

• June 27, 2019
• Kubernetes
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Okteto is a development platform used to streamline the development process for Kubernetes applications. In this tutorial, you will create a Python application and deploy it on Kubernetes using Okteto.

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How To Add Twitter Card and Open Graph Social Metadata to Your Webpage with HTML

• June 27, 2019
• Tutorials
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When you share links on social media platforms, they’ll often be presented with rich imagery and a nicely formatted title, summary, and link, instead of plain text. You can add these rich media social sharing capabilities to your site by including certain meta tags in the head of your HTML document. This tutorial will show you how to implement both Twitter Card and Open Graph social metadata.

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