February 2021 - Page 39 of 62

Common Problems 114067

RHEL 10 – CIFS mount fails after Kerberos library update – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 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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How to Set Up SELinux MLS Policy on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up SELinux MLS Policy on Oracle Linux 8

Introduction Setting up set up selinux mls policy on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up SELinux MLS Policy on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

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Spring Boot MongoDB — step-by-step Databases tutorial on Progressive Robot

Spring Boot MongoDB

URL: https://www.progressiverobot.com/spring-boot-mongodb/ Welcome to Spring Boot [MongoDB](/community/tutorials/mongodb-tutorial) example. Spring Boot is the easiest way to spin a spring project quickly and MongoDB is the most popular NoSQL database. Let's see how to integrate spring with MongoDB database. Spring Boot MongoDB We need following APIs to work with Spring Boot and MongoDB database. Spring Data MongoDB […]

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

Ubuntu 18.04 — rake — 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-4295-1 Related CVEs: CVE-2020-8130 Upstream summary: It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands. Table of contents Symptom […]

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How to Configure a Forest Trust in Active Directory on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure a Forest Trust in Active Directory on Windows Server 2016

How to Set Up Windows Server 2016 Forest Trust A forest trust is a special type of trust relationship in Windows Server 2016 that establishes authentication and authorization between two complete Active Directory forests. Unlike domain trusts that connect individual domains, a forest trust connects all domains in both forests through a single trust relationship […]

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