BigBlueButton is an open source, feature-rich virtual classroom where you can teach your students. In this guide, you will install a BigBlueButton server along with the client interface called Greenlight. Greenlight makes your virtual classroom accessible from any browser and enforces the use of HTTPS to keep information secure.
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2016:1504-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-4542 CVE-2016-4543 CVE-2016-4544 CVE-2020-7060 CVE-2015-2787 CVE-2015-3329 CVE-2015-6831 CVE-2015-8879 +12 more Upstream summary: The exif_process_IFD_TAG function in ext/exif/exif.c in PHP before 5.5.35, 5.6.x before 5.6.21, and […]
O Laravel é um framework PHP de código aberto que fornece um conjunto de ferramentas e recursos para construir aplicativos PHP modernos. Com um ecossistema completo que aproveita suas funcionalidades nativas, a…
This talk features the award-winning Mrs. Christine Souffrant Ntim explaining how to build your personal brand during a pandemic, specifically in emerging tech ecosystems.
In this tutorial, we'll be discussing what are DialogFragments. We'll see how they are different from the [Dialogs](/community/tutorials/android-alertdialog) too with the help of a simple android application. Android DialogFragments DialogFragment is a utility class which extends the Fragment class. It is a part of the v4 support library and is used to display an overlay […]
OpenSSL is the most widely used toolkit for working with SSL/TLS certificates on Linux systems. On RHEL 9, it provides everything you need to generate private keys, create certificate signing requests (CSRs), sign certificates using your own certificate authority, and convert between certificate formats. Understanding OpenSSL is essential for any sysadmin managing secure services. This […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: OpenBSD 7.4 📖 ~4 min read • Source: OpenBSD 7.4 errata 013_unbound Errata topic: Security: unbound (All architectures) Issued: February 13, 2024 Related CVEs: CVE-2023-50387 CVE-2023-50868 Upstream summary: DNSSEC protocol vulnerabilities have been discovered that render various DNSSEC validators victims of Denial […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202009-18 Related CVEs: CVE-2019-15947 CVE-2020-14198 Upstream summary: Multiple vulnerabilities have been discovered in Bitcoin. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]
Alibaba AI chips are now built around agent workloads, not raw model scale. Discover 5 critical shifts this pivot delivers to the global AI race and what enterprise leaders should do in response.
🟠 High ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Debian 10 📖 ~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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