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How to Configure Hot-Plug PCI Devices on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Hot-Plug PCI Devices on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure hot-plug pci devices on ibm aix 7.2 on […]

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Debian 11 — tryton-server — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tryton-server — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0215 CVE-2014-6633 CVE-2015-0861 CVE-2016-1241 CVE-2016-1242 CVE-2017-0360 CVE-2019-10868 CVE-2022-26661  +3 more Upstream summary: model/modelstorage.py in the Tryton application framework (trytond) before 2.4.0 for Python does not properly restrict access […]

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How to Install Graylog Log Management on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Graylog Log Management on Debian 9

Introduction How to Install Graylog Log Management on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]

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

How to Configure Windows Defender on Windows Server 2012 R2 (SERVER-2012-R2)

How to Configure Windows Defender on Windows Server 2012 R2 Windows Defender on Windows Server 2012 R2 provides real-time malware protection as a built-in antivirus and anti-spyware solution. Unlike Windows 8.1 client systems where Defender is always present, on Server 2012 R2 it must be installed as a feature and configured appropriately for the server […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 9 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-0130 CVE-2011-0766 CVE-2011-3389 CVE-2014-1693 CVE-2014-3566 CVE-2015-2774 CVE-2016-1000107 CVE-2016-10253  +12 more Upstream summary: lib/crypto/c_src/crypto_drv.c in erlang does not properly check the return value from the OpenSSL DSA_do_verify function, which […]

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Ubuntu 22.04 — libgd2 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libgd2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 September 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7112-1 Related CVEs: CVE-2021-40812 Upstream summary: It was discovered that the GD Graphics Library did not perform proper bounds checking while handling BMP and WebP files. If a user were […]

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Microservices Deployment Using Nomad on Ubuntu — step-by-step Linux tutorial on Progressive Robot

Microservices Deployment Using Nomad on Ubuntu

Looking for an efficient tool to deploy microservices? Check out HashiCorp Nomad – a versatile, lightweight scheduler that streamlines application deployment and scaling. With Nomad’s simplicity, scalability, and integration, you can deploy and manage microservices with ease. Learn more about Nomad’s features and capabilities in their official documentation and comparison guide.

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AlmaLinux 8 — gcc-toolset-14-gcc — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — gcc-toolset-14-gcc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:1338 Related CVEs: CVE-2020-11023 Upstream summary: The gcc-toolset-14-gcc package contains the GNU Compiler Collection version 14. Security Fix(es): * jquery: Untrusted code execution via <option> tag in HTML passed to DOM manipulation […]

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How To Protect an Nginx Server with Fail2Ban on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Protect an Nginx Server with Fail2Ban on Ubuntu 22.04

In this guide, you will learn how to install `fail2ban` on a Ubuntu 22.04 server and configure it to monitor your Nginx logs for intrusion attempts. Fail2ban can significantly mitigate brute force attacks by creating rules that automatically alter your firewall configuration to ban specific IPs after a certain number of unsuccessful login attempts. This will allow your server to harden itself against these access attempts without intervention from you.

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