April 2020 - Page 13 of 66

How to Set Up Windows Server 2019 Group Policy Preferences — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 Group Policy Preferences

How to Set Up Windows Server 2019 Group Policy Preferences Group Policy Preferences (GPP) extend Group Policy beyond traditional settings by allowing administrators to configure and distribute settings that users can change — unlike enforced policy settings. GPP supports drive mappings, printer connections, scheduled tasks, registry settings, environment variables, shortcut creation, file and folder management, […]

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Ubuntu 18.04 — sigil — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — sigil — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4085-1 Related CVEs: CVE-2019-14452 Upstream summary: Mike Salvatore discovered that Sigil mishandled certain malformed EPUB files. An attacker could use this vulnerability to write arbitrary files to the filesystem. Table […]

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Ubuntu 16.04 — libreoffice — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libreoffice — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4138-1 Related CVEs: CVE-2019-9854 CVE-2019-9850 CVE-2019-9851 CVE-2019-9852 CVE-2019-9848 CVE-2019-9849 CVE-2018-10119 CVE-2018-10120  +8 more Upstream summary: It was discovered that LibreOffice incorrectly handled embedded scripts in document files. If a user […]

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Cómo cambiar la opacidad de una imagen de fondo en CSS — step-by-step DevOps tutorial on Progressive Robot

Cómo cambiar la opacidad de una imagen de fondo en CSS

Con CSS y CSS3 puede hacer muchas cosas, pero establecer una opacidad en un fondo de CSS no es una de ellas. Sin embargo, si usa la creatividad, hay muchas soluciones creativas para hacer que parezca que está cambiando la opacidad de la imagen de fondo en CSS. Ambos métodos tienen…

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How to Set Up a DNS Server with BIND9 on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a DNS Server with BIND9 on RHEL 8

Running your own DNS server gives you full control over name resolution for internal infrastructure and reduces dependency on external resolvers. BIND9 (Berkeley Internet Name Domain) is the most widely deployed DNS server in the world and is available in the default RHEL 8 repositories. On RHEL 8, the package is split into bind (the […]

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FreeBSD 12 — percona55-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — percona55-server — multiple vulnerabilities (20 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: MySQL Server — Multiple vulerabilities 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: Oracle reports: This Critical Patch Update contains 45 new security patches […]

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Android CoordinatorLayout — step-by-step DevOps tutorial on Progressive Robot

Android CoordinatorLayout

Up until now we've used android CoordinatorLayout in plenty of our tutorials. Yet we haven't gone into it's details. In this tutorial we'll discuss and customise the CoordinatorLayout in android app. Android CoordinatorLayout Android CoordinatorLayout is a super-powered [FrameLayout](/community/tutorials/android-framelayout-absolutelayout-example-tutorial). It has a lot more to offer than it seems. It has additional level of control […]

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