January 2021 - Page 15 of 69

IBM AIX 7.2 — CVE-2021-29833 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29833 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29833, IBM Support Bulletin CVE: CVE-2021-29833 NVD summary: IBM Jazz for Service Management 1.1.3.10 and IBM Tivoli Netcool/OMNIbus_GUI is vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript […]

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What is MEAN? — step-by-step DevOps tutorial on Progressive Robot

What is MEAN?

MEAN is a free and open-source set of technologies for creating dynamic websites and web applications with JavaScript.

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Ubuntu 20.04 — python-rsa — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python-rsa — 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-4478-2 Related CVEs: CVE-2020-13757 Upstream summary: USN-4478-1 fixed a vulnerability in Python-RSA. This update provides the corresponding update for Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. Original […]

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Java Files - java.nio.file.Files Class — step-by-step Programming tutorial on Progressive Robot

Java Files – java.nio.file.Files Class

URL: https://www.progressiverobot.com/java-files-nio-files-class/ Java Files class was introduced in Java 1.7 and is a part of java.nio.file package. Java Files Class Java Files class contains [static](/community/tutorials/static-keyword-in-java) methods that work on files and directories. This class is used for basic file operations like create, read, write, copy and delete the files or directories of the file system. […]

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How To Migrate Redis Data with Replication on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Migrate Redis Data with Replication on Ubuntu 18.04

Replication is the practice of regularly copying data from one database to another so as to have a replica that always remains an exact duplicate of the primary instance. This tutorial outlines the process of using Redis’s built-in replication features to migrate data from one Ubuntu 18.04 server to another.

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How to Harden SSH on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Harden SSH on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying harden ssh on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Harden SSH on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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Ubuntu 16.04 — horizon — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — horizon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4675-1 Related CVEs: CVE-2020-29565 Upstream summary: Pritam Singh discovered that OpenStack Horizon incorrectly validated certain parameters. An attacker could possibly use this issue to cause OpenStack Horizon to redirect to […]

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Ubuntu 16.04 — adminer — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — adminer — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5271-1 Related CVEs: CVE-2020-35572 CVE-2021-21311 CVE-2021-29625 Upstream summary: It was discovered that Adminer did not escape data in the history parameter of the default URI. A remote attacker could possibly […]

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