August 2021 - Page 48 of 69

How to Tune Scheduler with schedo on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Tune Scheduler with schedo on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to tune scheduler with schedo on ibm aix 7.1 on […]

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How to Configure the Global Catalog on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure the Global Catalog on Windows Server 2012 R2

How to Configure the Global Catalog on Windows Server 2012 R2 The Global Catalog (GC) is a partial replica of all objects in the Active Directory forest stored on designated domain controllers called Global Catalog servers. Unlike a regular domain controller that holds a full replica of only its own domain, a GC server holds […]

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FreeBSD 13 — lbreakout — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — lbreakout — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lbreakout2 vulnerability in environment variable handling Related CVEs: CVE-2004-0158 Upstream summary: Ulf Härnhammar discovered an exploitable vulnerability in lbreakout2's environmental variable handling. In several instances, the contents of the HOME […]

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How to Configure Windows Server 2019 Group Policy Security Filtering — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Windows Server 2019 Group Policy Security Filtering

How to Configure Windows Server 2019 Group Policy Security Filtering Group Policy Security Filtering controls which users and computers a GPO applies to within a linked OU, domain, or site. By default, all GPOs apply to the Authenticated Users group, which includes all domain users and computers. Security Filtering lets you scope GPO application to […]

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How To Use nsh to Run Secure Remote Commands On Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Use nsh to Run Secure Remote Commands On Ubuntu 18.04

In this tutorial you will use the NKN shell daemon and the NKN Shell Client Xterm applications to execute commands on a remote machine. To do so, you will install and configure the NKN Shell daemon on a remote machine with internet access, generate a keypair, and make your connection from a client.

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Ubuntu 20.04 — junit4 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — junit4 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4731-1 Related CVEs: CVE-2020-15250 Upstream summary: It was discovered that JUnit 4 contains a local information disclosure vulnerability. An attacker could possibly use this issue to obtain sensitive information. Table […]

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FreeBSD 13 — mozilla — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mozilla — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mozilla — multiple vulnerabilities Related CVEs: CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 CVE-2004-0717 CVE-2004-0718 CVE-2004-0721 CVE-2004-0722 CVE-2004-0757  +12 more Upstream summary: [email protected] reports: Memory safety bugs present in Firefox 134 and Thunderbird 134. […]

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