January 2022 - Page 52 of 72

AlmaLinux 8 — arpwatch — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — arpwatch — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:1891 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 115003

RHEL 8 XFS filesystem remounts read-only after metadata error

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 & Cross-Refs References & Further […]

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How to Deploy a Symfony Application on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Deploy a Symfony Application on CentOS Stream 9

Introduction This tutorial demonstrates how to Deploy a Symfony Application on CentOS Stream 9 on CentOS Stream 9. 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 CentOS Stream 9 system with the […]

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FreeBSD 13 — openx — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — openx — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenX — SQL injection vulnerability Related CVEs: CVE-2013-7149 Upstream summary: Revive reports: An SQL-injection vulnerability was recently discovered and reported to the Revive Adserver team by Florian Sander. The vulnerability […]

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Common Problems 114034

RHEL 10 – rsyslog Queue Backlog Causes Log Loss Risk – Throughput Tuning

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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FreeBSD 12 — graylog — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — graylog — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: graylog — remote code execution in log4j from user-controlled log input Related CVEs: CVE-2021-44228 CVE-2021-45046 Upstream summary: Apache Software Foundation reports: It was found that the fix to address CVE-2021-44228 […]

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Common Problems 112629

Windows Server 2019 — VSS snapshot creation fails during backup windows — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 30 May 2026 Affected versions: Windows Server 2019 📖 ~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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FreeBSD 13 — cliqz — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — cliqz — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Mozilla — Stored passwords in 'Saved Logins' can be copied without master password entry Related CVEs: CVE-2019-11733 Upstream summary: Mozilla Foundation reports: CVE-2019-11733: Stored passwords in 'Saved Logins' can be […]

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50 Servlet Interview Questions and Answers — step-by-step Programming tutorial on Progressive Robot

50 Servlet Interview Questions and Answers

URL: https://www.progressiverobot.com/servlet-interview-questions-and-answers/ Servlets is a very important topic of Java EE and all of the web applications frameworks such as Spring and Struts is built on top of it. This makes servlet interview questions a hot topic in interviews. Here I am providing a list of 50 servlet interview questions with answers to help you […]

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