September 2020 - Page 52 of 59

Common Problems 121085

Debian 10 sudo Command Not Found or Permission Denied

🟠 High   ⏱ 5–30 min  Last verified: 4 September 2020 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 & […]

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Common Problems 118443

Ubuntu 16.04 LTS – SSH login hangs after authentication – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 September 2020 Affected versions: Ubuntu 16.04 LTS 📖 ~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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Common Problems 115050

Tuned profile not applying after reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 4 September 2020 📖 ~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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Common Problems 113593

Windows Server 2012 R2 — Time sync drifts because NTP peers are unreachable — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 September 2020 Affected versions: Windows Server 2012 R2 📖 ~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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How to Install Node.js on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Node.js on FreeBSD 12

Introduction This guide explains how to Install Node.js on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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Common Problems 112455

Windows Server 2019 — SFC scannow reports corrupt files it cannot repair on production server — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 4 September 2020 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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How to Create and Manage File Systems on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Create and Manage File Systems on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to create and manage file systems on ibm aix 7.2 […]

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如何使用Python的交互控制台 — step-by-step Python tutorial on Progressive Robot

如何使用Python的交互控制台

Python的交互控制台(也叫做Python解释器,或是Python Shell)为程序员提供了”运行指令”和”不创建文件测试测试代码”的快速途径。 交互控制台可以调用所有的Python内置函数和任何已安装的模块、命令行历史、和自动补全。它为”探索Python语言”和”写好代码后粘贴入文件”提供了便利。 这个教程中我们将介绍如何使用Python的交互控制台,以及促使它成为你的得力编程工具。 从”本地电脑”或者”安装了Python的服务器”都可以进入Python交互控制台。 …

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