Linux

How To Secure Apache with Let's Encrypt on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Secure Apache with Let’s Encrypt on Ubuntu 16.04

This tutorial will show you how to set up a free TLS/SSL certificate from Let’s Encrypt on a Ubuntu 16.04 server running Apache as web server. TLS certificates are used within web servers to encrypt the traffic between server and client, providing extra security for users accessing your application.

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Debian 10 — bluez — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — bluez — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 September 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-0556 CVE-2020-26558 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Configure Bridge Networking on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Bridge Networking on RHEL 7

How to Configure Bridge Networking on RHEL 7 A network bridge is a Layer 2 virtual switch that connects multiple network interfaces, allowing them to share a single network segment. On RHEL 7, bridge networking is essential for virtualization with KVM — virtual machine interfaces are typically attached to a bridge so VMs appear as […]

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Common Problems 121543

Debian 9: /var fills up due to systemd journal growth

🟠 High   ⏱ 5–30 min  Last verified: 10 September 2020 Affected versions: Debian 9 📖 ~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 118517

Ubuntu 16.04 LTS MySQL service fails with InnoDB errors

🟡 Medium   ⏱ 5–30 min  Last verified: 10 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 114898

RHEL 8 DNF Metadata Download Fails With Curl Error

🟡 Medium   ⏱ 5–30 min  Last verified: 10 September 2020 📖 ~2 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 Configure restic Backup Solution on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure restic Backup Solution on Debian 10

Introduction How to Configure restic Backup Solution on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. […]

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Ubuntu 20.04 — kamailio — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — kamailio — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 September 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7416-1 Related CVEs: CVE-2016-2385 CVE-2018-14767 CVE-2020-28361 CVE-2018-16657 CVE-2020-27507 Upstream summary: Stelios Tsampas discovered that Kamailio did not correctly handle certain memory operations, which could lead to a buffer overflow. A […]

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