IT, Cloud & DevOps Blog

Java Keytool Essentials: Working with Java Keystores — step-by-step Security tutorial on Progressive Robot

Java Keytool Essentials: Working with Java Keystores

Java Keytool is a key and certificate management tool that is used to manipulate Java Keystores, and is included with Java. A Java Keystore is a container for authorization certificates or public key certificates, and is often used by Java-based applications for encryption,…

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openSUSE Tumbleweed — perl-LWP-Protocol-https — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — perl-LWP-Protocol-https — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2014-3230 Upstream summary: The libwww-perl LWP::Protocol::https module 6.04 through 6.06 for Perl, when using IO::Socket::SSL as the SSL socket class, allows attackers to disable server […]

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FreeBSD 12 — asterisk — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — asterisk — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: asterisk – path traversal Related CVEs: CVE-2004-0097 CVE-2006-1827 CVE-2011-1507 CVE-2011-2216 CVE-2011-2529 CVE-2011-2535 CVE-2011-2536 CVE-2011-3389  +12 more Upstream summary: [email protected] reports: An issue in the action_listcategories() function of Sangoma Asterisk v22/22.0.0/22.0.0-rc1/22.0.0-rc2/22.0.0-pre1 […]

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How to Install Java (OpenJDK) on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Java (OpenJDK) on RHEL 7

How to Install Java (OpenJDK) on RHEL 7 Java remains one of the most widely used programming languages and runtime environments in enterprise environments. Whether you are running a web application server, building microservices, or working with big data tools like Hadoop or Kafka, Java is almost certainly part of your stack. Red Hat Enterprise […]

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Common Problems 121463

Debian 9: APT GPG signature verification failures

🟠 High   ⏱ 5–30 min  Last verified: 2 December 2019 Affected versions: Debian 9 📖 ~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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Alpine Linux edge — libzip — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libzip — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libzip 1.3.0-r0 Related CVEs: CVE-2017-14107 Upstream summary: Alpine community repository for vedge ships libzip 1.3.0-r0 which addresses CVE-2017-14107. Table of contents Symptom & Impact Environment […]

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How to Set Up VictoriaMetrics on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up VictoriaMetrics on SLES 15

Introduction This tutorial covers How to Set Up VictoriaMetrics 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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How to Migrate from AIX 7.1 to AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Migrate from AIX 7.1 to AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to migrate from aix 7.1 to aix 7.1 on IBM […]

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How to Use IBM Cloud CLI with PowerVS on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use IBM Cloud CLI with PowerVS on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use ibm cloud cli with powervs on ibm aix […]

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