chris

How To Use Apache as a Reverse Proxy with mod_proxy on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Use Apache as a Reverse Proxy with mod_proxy on CentOS 7

In this tutorial, you will set up Apache as a reverse proxy using the `mod_proxy` extension to redirect incoming connections to underlying application server(s) running on the same network. There are instructions on setting up a simple web app using the Flask framework to show how Apache interacts with the real application hidden behind it, but you can also follow this tutorial using your existing application server, if you have one.

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Debian 10 — patch — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — patch — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 August 2019 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-20969 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Percona XtraBackup for MySQL Hot Backups on RHEL 8

Percona XtraBackup is an open-source hot backup utility for MySQL and Percona Server that performs physical backups without locking tables or interrupting active queries on InnoDB tables. Unlike mysqldump, which produces logical SQL dumps, XtraBackup copies InnoDB data files directly and replays the transaction log to bring the backup to a consistent state, making it […]

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Common Problems 118604

setlocale Warnings and UTF-8 Locale Misconfiguration

🟡 Medium   ⏱ 5–30 min  Last verified: 31 July 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 & Cross-Refs References & Further […]

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Common Problems 112425

Windows Server 2019 — MSI install rolls back at completion stage due to custom action failure — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 31 July 2019 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 Set Up Active Directory Tiered Administration on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Active Directory Tiered Administration on Windows Server 2012 R2

How to Set Up Active Directory Tiered Administration on Windows Server 2012 R2 The Microsoft Active Directory Tiered Administration model is a security architecture that separates administrative accounts and systems into three tiers to prevent credential theft attacks from escalating across the entire environment. Tier 0 contains the most critical assets — Domain Controllers, PKI […]

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FreeBSD 12 — py27-supervisor — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py27-supervisor — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 July 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Supervisord — An authenticated client can run arbitrary shell commands via malicious XML-RPC requests Related CVEs: CVE-2017-11610 Upstream summary: mnaberez reports: supervisord can be configured to run an HTTP server […]

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