June 2019 - Page 4 of 62

What is Redis? — step-by-step Databases tutorial on Progressive Robot

What is Redis?

Redis is an open-source key-value data store known for its flexibility, performance, and wide language support. An in-memory database, Redis is also known for its speed and has found wide use as a cache and message broker, as well as a database.

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FreeBSD 12 — apache-openoffice — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache-openoffice — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Apache OpenOffice — master password vulnerabilities Related CVEs: CVE-2014-3575 CVE-2015-1774 CVE-2015-4551 CVE-2015-5212 CVE-2015-5213 CVE-2015-5214 CVE-2016-1513 CVE-2017-12607  +11 more Upstream summary: The Apache Openoffice project reports: Apache OpenOffice supports the storage […]

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How to Configure Disk Encryption with LUKS on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Disk Encryption with LUKS on RHEL 10

Introduction This tutorial demonstrates how to Configure Disk Encryption with LUKS on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream […]

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FreeBSD 12 — linux-c7-openssl-libs — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-c7-openssl-libs — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenSSL — multiple vulnerabilities Related CVEs: CVE-2016-7055 CVE-2016-8610 CVE-2017-3730 CVE-2017-3731 CVE-2017-3732 Upstream summary: The OpenSSL project reports: Truncated packet could crash via OOB read (CVE-2017-3731) Bad (EC)DHE parameters cause a […]

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The head() and tail() function in R - Detailed Reference — step-by-step DevOps tutorial on Progressive Robot

The head() and tail() function in R – Detailed Reference

The head() and tail() function in R are often used to read the first and last n rows of a dataset. You may be a working professional, a programmer, or a novice learner, but there are some times where you required to read large datasets and analyze them. It is really hard to digest a […]

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How to Install and Configure cAdvisor for Container Monitoring on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure cAdvisor for Container Monitoring on RHEL 8

cAdvisor (Container Advisor) is an open-source daemon from Google that collects, aggregates, and exports real-time resource usage and performance metrics for every running container on a host. Unlike Node Exporter, which reports host-level statistics, cAdvisor descends into cgroup hierarchies to expose per-container CPU, memory, network, and filesystem metrics in Prometheus format. On RHEL 8 with […]

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SLES 15 — libXinerama1 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libXinerama1 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2013:1103-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-1985 Upstream summary: Integer overflow in X.org libXinerama 1.1.2 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via […]

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