March 2021 - Page 33 of 63

Hibernate Interview Questions and Answers — step-by-step DevOps tutorial on Progressive Robot

Hibernate Interview Questions and Answers

Hibernate is one of the most widely used ORM tool for Java applications. It's used a lot in enterprise applications for database operations. So we decided to write a post about hibernate interview questions to brush up your knowledge before the interview. Whether you are fresher or experienced, having good knowledge or Hibernate ORM tool […]

Read more
openSUSE Tumbleweed — gptfdisk — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — gptfdisk — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2020-0256 CVE-2021-0308 Upstream summary: In LoadPartitionTable of gpt.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of […]

Read more
Android ViewPager Example Tutorial — step-by-step DevOps tutorial on Progressive Robot

Android ViewPager Example Tutorial

ViewPager in Android allows the user to flip left and right through pages of data. In our android ViewPager application we'll implement a ViewPager that swipes through three views with different images and texts. Android ViewPager Android ViewPager widget is found in the support library and it allows the user to swipe left or right […]

Read more
Oracle Linux 8 — Certain SEV Guest Configurations Might Cause Hypervisor CPU Soft-Lockup Warnings — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Certain SEV Guest Configurations Might Cause Hypervisor CPU Soft-Lockup Warnings

🟠 High   ⏱ 5–30 min  Last verified: 15 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 34050377 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 […]

Read more
Common Problems 121071

Memory Pressure and Swap Thrashing

🟠 High   ⏱ 5–30 min  Last verified: 15 March 2021 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 & […]

Read more
Common Problems 113091

Windows Server 2016 — Update History Appears Empty After Datastore Reset Confusing Compliance — Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 15 March 2021 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
How to Configure firewalld Zones on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure firewalld Zones on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure firewalld zones on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure firewalld Zones on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

Read more
openSUSE Tumbleweed — barrier — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — barrier — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2021:1498-1 Related CVEs: CVE-2021-42072 CVE-2021-42073 Upstream summary: An issue was discovered in Barrier before 2.4.0. The barriers component (aka the server-side implementation of Barrier) does not sufficiently verify the identify of connecting […]

Read more
CHAT