Linux

How To Move an Nginx Web Root to a New Location on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Move an Nginx Web Root to a New Location on Ubuntu 22.04

On Ubuntu, by default, the Nginx web server stores its documents in `/var/www/html`, which is typically located on the root filesystem with the rest of the operating system. Sometimes, though, it’s helpful to move the document root to another location, such as a separate mounted filesystem.

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How to Deploy a Django Application with Gunicorn and Nginx on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Deploy a Django Application with Gunicorn and Nginx on RHEL 7

How to Deploy a Django Application with Gunicorn and Nginx on RHEL 7 Django’s built-in development server is single-threaded, outputs detailed error tracebacks to the browser, and is explicitly documented as unsuitable for production. The standard production deployment for Django on Linux is a two-layer stack: Gunicorn (a Python WSGI HTTP server) handles the Python […]

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Common Problems 120578

Debian 11 – sudo fails in automation with no tty present

🟡 Medium   ⏱ 5–30 min  Last verified: 10 September 2022 Affected versions: Debian 11 📖 ~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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AlmaLinux 8 — libhbaapi — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libhbaapi — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3558 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 […]

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Common Problems 116952

Ubuntu 22.04 suspend and resume issues

🟡 Medium   ⏱ 5–30 min  Last verified: 10 September 2022 📖 ~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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Debian 11 — pcsc-lite — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pcsc-lite — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-0407 CVE-2010-4531 CVE-2016-10109 Upstream summary: Multiple buffer overflows in the MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka PCSCD) in MUSCLE PCSC-Lite before 1.5.4 allow […]

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Debian 11 — file — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — file — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0102 CVE-2003-1092 CVE-2004-1304 CVE-2007-1536 CVE-2007-2026 CVE-2007-2799 CVE-2009-0947 CVE-2009-0948  +12 more Upstream summary: Buffer overflow in tryelf() in readelf.c of the file command allows attackers to execute arbitrary code […]

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Ubuntu 16.04 — onionshare — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — onionshare — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 September 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7625-1 Related CVEs: CVE-2018-19960 CVE-2022-21689 Upstream summary: It was discovered that OnionShare could be exploited when run with the –debug argument. A local attacker could possibly use this issue to […]

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Oracle Linux 9 — libksba — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — libksba — vulnerability — patch and remediation guide (ELSA-2022-7090)

🟠 High   ⏱ 15–60 min  Last verified: 10 September 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7090 Related CVEs: CVE-2022-3515 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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openSUSE Tumbleweed — bat — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — bat — vulnerability — 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-2022:1127-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-24713 Upstream summary: regex is an implementation of regular expressions for the Rust language. The regex crate features built-in mitigations to prevent denial of service […]

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