February 2021 - Page 42 of 57

Common Problems 113054

Windows Server 2016 — FSMO seizure recovery required after permanent loss of role holder — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 February 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
Oracle Linux 8 — fetchmail — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — fetchmail — vulnerability — patch and remediation guide (ELSA-2022-1964)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1964 Related CVEs: CVE-2021-36386 CVE-2021-39272 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

Read more
Common Problems 112913

Windows Server 2016 — DHCP Server service not binding to NIC — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 February 2021 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
How to Use ibmservice to Register Support on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use ibmservice to Register Support 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 use ibmservice to register support on ibm aix 7.2 […]

Read more
static keyword in java — step-by-step Programming tutorial on Progressive Robot

static keyword in java

URL: https://www.progressiverobot.com/static-keyword-in-java/ static keyword in Java is used a lot in java programming. Java static keyword is used to create a Class level variable in java. static variables and methods are part of the class, not the instances of the class. static keyword in java ![java static, static keyword in java](images/static-keyword-in-java-section-1.png) Java static keyword can […]

Read more
openSUSE Tumbleweed — live555 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — live555 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2021:0915-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-15232 CVE-2018-4013 CVE-2019-6256 CVE-2019-7314 CVE-2019-9215 CVE-2021-28899 CVE-2021-38380 CVE-2021-38381  +4 more Upstream summary: Live555 before 2019.08.16 has a Use-After-Free because GenericMediaServer::createNewClientSessionWithId can generate the same client […]

Read more
How to Configure DKIM, SPF and DMARC on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure DKIM, SPF and DMARC on RHEL 7

How to Configure DKIM, SPF and DMARC on RHEL 7 Email authentication standards — SPF, DKIM, and DMARC — are essential for any mail server that sends outbound email. Without them, your messages are likely to be rejected or placed in spam folders by major providers such as Gmail, Microsoft 365, and Yahoo. SPF (Sender […]

Read more
Debian 10 — nginx — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — nginx — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 February 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9511 CVE-2020-11724 CVE-2021-23017 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

Read more
How to Normalize data in R [3 easy methods] — step-by-step DevOps tutorial on Progressive Robot

How to Normalize data in R [3 easy methods]

URL: https://www.progressiverobot.com/normalize-data-in-r/ Hello, readers! In this article, we will be having a look at 3 Easy Ways to Normalize data in R programming. So, let us begin!! 🙂 What is Normalization? Feature Scaling is an essential step prior to modeling while solving prediction problems in Data Science. Machine Learning algorithms work well with the data […]

Read more
Как установить Java с помощью Apt-Get в Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

Как установить Java с помощью Apt-Get в Ubuntu 16.04

Java и JVM (Виртуальная машина Java) широко используются в самом разном программном обеспечении. Эта статья описывает процесс установки и управления различными версиями Java с помощью утилиты apt-get. Для того, чтобы следовать инструкциям в этой статье,…

Read more
CHAT