September 2021 - Page 40 of 66

How To Secure PostgreSQL on an Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Secure PostgreSQL on an Ubuntu VPS

Database management systems are extremely useful for handling information from websites and applications. PostgreSQL is a popular database management system that is incredibly powerful. When using PostgreSQL, it is essential that you take proper precautions to secure your databases. This article is an introduction to security practices when using PostgreSQL

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Ubuntu 20.04 — shibboleth-sp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — shibboleth-sp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4925-1 Related CVEs: CVE-2021-28963 Upstream summary: Toni Huttunen and Fraktal Oy discovered that the Shibboleth Service provider allowed content injection due to allowing attacker-controlled parameters in error or other status […]

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Android Spinner using Kotlin — step-by-step DevOps tutorial on Progressive Robot

Android Spinner using Kotlin

In this tutorial, we'll be discussing and implementing Spinners in our Android Application using Kotlin. [Android Spinner](/community/tutorials/android-spinner-drop-down-list) is used to create a drop-down list on the screen. What will you learn? Creating Spinners through XML and Programmatically Setting a prompt on the Spinner. Creating a custom layout for the Spinner. Handling Click Listeners and Display […]

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How to Use Docker Volumes on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Use Docker Volumes on FreeBSD 13

Introduction Deploying use docker volumes on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]

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AlmaLinux 8 — nfs4-acl-tools — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — nfs4-acl-tools — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3664 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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AlmaLinux 8 — texlive — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — texlive — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1889 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Oracle Linux 8 — samba security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — samba security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3582)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3582 Related CVEs: CVE-2019-3880 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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openSUSE Tumbleweed — libcryptopp8_6_0 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libcryptopp8_6_0 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:1968-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-14318 CVE-2021-40530 Upstream summary: Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able […]

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