chris

How To Install Ajenti Control Panel on Ubuntu 13.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Ajenti Control Panel on Ubuntu 13.04

Ajenti is an open source web based control panel for Linux servers. It offers a graphical user interface to perform most of the actions required to configure and keep your server up to date. If you prefer to have a simple yet solid control panel with some eye candy, Ajenti is definitely worth checking out.

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Ubuntu 18.04 — gdm3 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gdm3 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 August 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4614-1 Related CVEs: CVE-2020-16125 CVE-2019-3825 CVE-2018-14424 Upstream summary: Kevin Backhouse discovered that GDM incorrectly launched the initial setup tool when the accountsservice daemon was not reachable. A local attacker able […]

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Android RecyclerView Swipe To Delete And Undo — step-by-step DevOps tutorial on Progressive Robot

Android RecyclerView Swipe To Delete And Undo

In this tutorial, we'll be discussing and implementing the Swipe to Delete feature on the RecyclerView in our Android Application. Android Swipe To Delete Swipe to delete feature is commonly used to delete rows from a RecyclerView. In order to implement Swipe to delete feature, we need to use the ItemTouchHelper utility class. ItemTouchHelper.Callback In […]

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Android RecyclerView Data Binding — step-by-step DevOps tutorial on Progressive Robot

Android RecyclerView Data Binding

In this tutorial, we'll be discussing and implementing the RecyclerView Using Data Binding in our Android Application. Android RecyclerView DataBinding In order to know the basics of Android DataBinding, do visit [this tutorial](/community/tutorials/android-data-binding). Data Binding significantly reduces the boilerplate code. Here, we'll learn how to implement DataBinding with a [RecyclerView](/community/tutorials/android-recyclerview-android-cardview-example-tutorial) which has the ViewHolder pattern. […]

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Common Problems 117392

Ubuntu 20.04 LTS APT Lock File Prevents Updates

🟡 Medium   ⏱ 5–30 min  Last verified: 17 August 2020 📖 ~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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Common Problems 115047

journalctl Shows No Persistent Logs After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 17 August 2020 📖 ~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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Gentoo Linux — dev-java/oracle-jre-bin — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-java/oracle-jre-bin — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202209-15 Related CVEs: CVE-2020-2585 CVE-2020-2755 CVE-2020-2756 CVE-2020-2757 CVE-2020-2773 CVE-2020-2781 CVE-2020-2800 CVE-2020-2803  +12 more Upstream summary: Multiple vulnerabilities have been discovered in Oracle's JDK and JRE software suites. Please review the CVE identifiers […]

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How to Configure IBM PowerVM Hypervisor on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure IBM PowerVM Hypervisor 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 ibm powervm hypervisor on ibm aix 7.2 on […]

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How to Configure DNS Aging and Scavenging on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure DNS Aging and Scavenging on Windows Server 2012 R2

How to Configure DNS Aging and Scavenging on Windows Server 2012 R2 DNS aging and scavenging is the mechanism by which Windows Server DNS automatically removes stale resource records that are no longer valid. In Active Directory-integrated DNS environments using dynamic DNS updates, clients and servers register their records automatically when they obtain IP addresses. […]

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