chris

Oracle Linux 8 — nss and nspr security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-1951)

• April 7, 2021
• Linux
• Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 7 April 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1951 Related CVEs: CVE-2018-18508 CVE-2019-11719 CVE-2019-11727 CVE-2019-11729 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

Read more

GRUB Rescue Prompt After Disk Layout Change

• April 7, 2021
• Tutorials
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 7 April 2021 📖 ~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 […]

Read more

How to Configure Group Managed Service Accounts (gMSA) on Windows Server 2012 R2

• April 7, 2021
• Tutorials
• Comment off

How to Configure Group Managed Service Accounts (gMSA) on Windows Server 2012 R2 Group Managed Service Accounts (gMSAs) extend the concept of Managed Service Accounts to support multiple hosts simultaneously. Where standard MSAs are limited to a single computer, gMSAs can be used across an entire server farm, NLB cluster, or any group of servers. […]

Read more

AlmaLinux 8 — gdb — vulnerability — patch and remediation guide

• April 7, 2021
• Linux
• Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1828 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 […]

Read more

How to Set Up a LEMP Stack on Oracle Linux 8

• April 7, 2021
• Oracle Linux
• Comment off

Introduction This tutorial demonstrates how to Set Up a LEMP Stack on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system with […]

Read more

如何在Ubuntu 18.04上安装Python 3并建立本地编程环境

• April 7, 2021
• Linux
• Comment off

Python是一种灵活多样的编程语言。它的用途广泛，在脚本、自动化、数据分析、机器学习和后端开发方面都具有优势。Python于1991年首次发行，名字的灵感来源于英国喜剧团体“Monty Python”，因此Python开发团队希望让Python用起来很有趣。易于安装配置、代码风格相对简单直接、有即时的反馈和报错，这些特性让Python成为编程初学者的一个很好选择，也同样适合有经验的程序员。[Python…

Read more

IBM AIX 7.2 — CVE-2021-38980 — vulnerability — patch and remediation guide

• April 7, 2021
• Tutorials
• Comment off

🟡 Medium   ⏱ 15–45 min  Last verified: 7 April 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-38980, IBM Support Bulletin CVE: CVE-2021-38980 NVD summary: IBM Tivoli Key Lifecycle Manager (IBM Security Guardium Key Lifecycle Manager) 3.0, 3.0.1, 4.0, and 4.1 could allow a remote attacker to obtain sensitive […]

Read more

How To Process Incoming Request Data in Flask

• April 7, 2021
• Python
• Comment off

Learn how to process incoming form data in a Flask app.

Read more

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

• April 7, 2021
• Linux
• Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2144 Related CVEs: CVE-2016-20011 CVE-2021-39360 Upstream summary: In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network […]

Read more

Ubuntu 18.04 — lz4 — vulnerability — patch and remediation guide

• April 7, 2021
• Linux
• Comment off

🟢 Low   ⏱ 5–15 min  Last verified: 7 April 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4968-1 Related CVEs: CVE-2021-3520 Upstream summary: It was discovered that LZ4 incorrectly handled certain memory operations. If a user or automated system were tricked into uncompressing a specially- crafted LZ4 […]

Read more