March 2022 - Page 43 of 70

40 Java Collections Interview Questions and Answers — step-by-step Programming tutorial on Progressive Robot

40 Java Collections Interview Questions and Answers

URL: https://www.progressiverobot.com/java-collections-interview-questions-and-answers/ [Java Collections Framework](/community/tutorials/collections-in-java-tutorial) is one of the core APIs of java programming language. It's one of the important topics for java interview questions. Here we are listing some important java collections interview questions and answers to help you in the interview. This is directly coming from my 14+ years of experience in Java […]

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How to Enable SSL/TLS with Let's Encrypt on Apache2 on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Enable SSL/TLS with Let’s Encrypt on Apache2 on Debian 9

  • March 13, 2022
  • Linux
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Introduction How to Enable SSL/TLS with Let’s Encrypt on Apache2 on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ […]

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Debian 11 — bsdiff — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — bsdiff — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • March 13, 2022
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🟢 Low   ⏱ 5–15 min  Last verified: 13 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9862 CVE-2020-14315 Upstream summary: Integer signedness error in bspatch.c in bspatch in bsdiff, as used in Apple OS X before 10.11.6 and other products, allows remote attackers to […]

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Amazon Linux 2 — transfig — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — transfig — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • March 13, 2022
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2173 Related CVEs: CVE-2020-21682 CVE-2021-32280 CVE-2021-3561 CVE-2019-19746 CVE-2019-19797 Upstream summary: 2023-08-03: CVE-2021-32280 was added to this advisory. A global buffer overflow in the set_fill component in genge.c of fig2dev 3.2.7b […]

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Gentoo Linux — app-text/qpdf — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-text/qpdf — vulnerability — patch and remediation guide

  • March 13, 2022
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202401-20 Related CVEs: CVE-2021-36978 Upstream summary: A vulnerability has been discovered in QPDF. Please review the CVE identifier referenced below for details. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Ubuntu 16.04 — jqueryui — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — jqueryui — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • March 13, 2022
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🟡 Medium   ⏱ 10–30 min  Last verified: 13 March 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6419-1 Related CVEs: CVE-2016-7103 CVE-2021-41182 CVE-2021-41183 CVE-2021-41184 CVE-2022-31160 Upstream summary: Hong Phat Ly discovered that jQuery UI did not properly manage parameters from untrusted sources, which could lead to arbitrary […]

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Oracle Linux 8 — gupnp — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gupnp — vulnerability — patch and remediation guide (ELSA-2021-2363)

  • March 13, 2022
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🟠 High   ⏱ 15–60 min  Last verified: 13 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2363 Related CVEs: CVE-2021-33516 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Configure Grafana Alerting on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Grafana Alerting on Debian 11

  • March 13, 2022
  • Linux
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Introduction Deploying configure grafana alerting on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, […]

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