Troubleshooting

How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration

How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration PowerShell is the cornerstone of modern Windows Server administration. On Windows Server 2012 R2, PowerShell 4.0 ships by default, bringing with it Desired State Configuration, enhanced remoting, workflow capabilities, and a mature scripting ecosystem. For sysadmins managing dozens or hundreds of servers, mastering […]

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FreeBSD 12 — freeimage — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — freeimage — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: freeimage — code execution vulnerability Related CVEs: CVE-2015-0852 CVE-2015-3885 CVE-2016-5684 Upstream summary: TALOS reports: An exploitable out-of-bounds write vulnerability exists in the XMP image handling functionality of the FreeImage library. […]

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FreeBSD 12 — opensmtpd — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — opensmtpd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenSMTPd — LPE and RCE in OpenSMTPD's default install Related CVEs: CVE-2015-7687 CVE-2020-7247 CVE-2020-8793 CVE-2020-8794 Upstream summary: OpenSMTPD developers reports: An out of bounds read in smtpd allows an attacker […]

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How to Configure RDS RemoteApp on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure RDS RemoteApp on Windows Server 2012 R2

How to Configure RDS RemoteApp on Windows Server 2012 R2 RemoteApp is a Remote Desktop Services feature that allows individual applications to be published from RD Session Host servers and delivered to users as if the applications were running locally on their workstations. Instead of seeing a full remote desktop, users see only the application […]

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Gentoo Linux — net-libs/rabbitmq-c — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-libs/rabbitmq-c — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202003-07 Related CVEs: CVE-2019-18609 Upstream summary: It was discovered that RabbitMQ C client incorrectly handled certain inputs. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Debian 10 — ruby-redcarpet — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — ruby-redcarpet — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 April 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-26298 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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Debian 10 — pdns-recursor — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — pdns-recursor — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 April 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-10995 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 Configure Remote Desktop Gateway on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Remote Desktop Gateway on Windows Server 2019

How to Configure Remote Desktop Gateway on Windows Server 2019 Remote Desktop Gateway (RD Gateway) is a Windows Server 2019 role service that enables authorised remote users to connect to internal network resources over HTTPS, eliminating the need to expose RDP port 3389 directly to the internet. RD Gateway encapsulates RDP traffic within HTTPS (port […]

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SLES 12 — evince — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — evince — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 April 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:14141-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-1010006 CVE-2017-1000159 CVE-2010-2640 CVE-2010-2641 CVE-2010-2642 CVE-2010-2643 CVE-2017-1000083 CVE-2019-11459 Upstream summary: Evince 3.26.0 is affected by buffer overflow. The impact is: DOS / Possible code execution. […]

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Oracle Linux 8 — git — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — git — vulnerability — patch and remediation guide (ELSA-2019-4356)

🟠 High   ⏱ 15–60 min  Last verified: 8 April 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-4356 Related CVEs: CVE-2019-1352 CVE-2019-1387 CVE-2019-1349 CVE-2019-1348 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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