Logging Monitoring

Oracle Linux 8 — wayland security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — wayland security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-2786)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2786 Related CVEs: CVE-2021-3782 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Ubuntu 20.04 — tcpdump — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tcpdump — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 January 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5331-2 Related CVEs: CVE-2018-16301 CVE-2020-8037 Upstream summary: USN-5331-1 fixed several vulnerabilities in tcpdump. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: […]

Read more
How to Set Up a VPN with SSTP on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up a VPN with SSTP on Windows Server 2012 R2

How to Set Up a VPN with SSTP on Windows Server 2012 R2 Secure Socket Tunneling Protocol (SSTP) is a Microsoft VPN protocol that encapsulates Point-to-Point Protocol (PPP) traffic over an HTTPS connection using SSL/TLS on port 443. SSTP VPNs are highly firewall-friendly because they use the same port as HTTPS web traffic, making them […]

Read more
How to Set Up MySQL with SSL on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up MySQL with SSL on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up mysql with ssl on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up MySQL with SSL on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]

Read more
Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2019-0966)

🔴 Critical   ⏱ 15–90 min  Last verified: 5 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-0966 Related CVEs: CVE-2019-9810 CVE-2019-9791 CVE-2019-9796 CVE-2019-9793 CVE-2019-9795 CVE-2019-9790 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
How to Configure BGP Route Reflector on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure BGP Route Reflector on Windows Server 2016

How to Configure Windows Server 2016 BGP Route Reflector Border Gateway Protocol (BGP) is the routing protocol that underpins the modern internet and is increasingly used within enterprise and cloud environments to enable dynamic routing between networks. In Windows Server 2016, the Remote Access Server role includes a fully functional BGP router implementation. A BGP […]

Read more
Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2019-2663)

🔴 Critical   ⏱ 15–90 min  Last verified: 5 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2663 Related CVEs: CVE-2019-11749 CVE-2019-11752 CVE-2019-11743 CVE-2019-11735 CVE-2019-11738 CVE-2019-11742 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
How to Set Up Windows Deployment Services (WDS) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Deployment Services (WDS) on Windows Server 2019

Introduction to Windows Deployment Services Windows Deployment Services (WDS) is a server role in Windows Server 2019 that enables network-based operating system deployment using PXE (Preboot Execution Environment) boot. WDS allows administrators to deploy Windows operating systems to bare-metal machines or to re-image existing machines over the network without physical media. It stores boot images […]

Read more
Oracle Linux 8 — nodejs:12 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:12 — security and stability fixes — required update (ELSA-2021-3623)

🟠 High   ⏱ 15–60 min  Last verified: 4 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3623 Related CVEs: CVE-2021-3672 CVE-2021-22939 CVE-2021-32804 CVE-2021-22940 CVE-2021-22931 CVE-2021-22930 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
Common Problems 113112

Windows Server 2016 — TLS cipher suite hardening breaks legacy API integrations on internal services — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2021 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
CHAT