🟡 Medium ⏱ 5–30 min Last verified: 1 September 2019 📖 ~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 […]
How to Configure Windows Server 2016 DNS Security Extensions DNS Security Extensions (DNSSEC) is a suite of Internet Engineering Task Force (IETF) specifications for securing DNS data. DNSSEC protects against DNS cache poisoning and man-in-the-middle attacks by digitally signing DNS records, allowing resolvers to verify that the responses they receive are authentic and have not […]
🟡 Medium ⏱ 5–30 min Last verified: 1 September 2019 📖 ~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 […]
How to Write Ansible Playbooks for Server Automation on RHEL 7 Ansible playbooks are the heart of infrastructure automation. While ad-hoc commands are useful for one-off tasks, playbooks allow you to describe a desired system state in YAML and apply it repeatably and idempotently across your entire fleet. A well-written playbook can provision a complete […]
How to Install Jenkins on RHEL 7 Jenkins is the leading open-source automation server, used by development teams worldwide to build, test, and deploy software continuously. On Red Hat Enterprise Linux 7, getting Jenkins running requires a few deliberate steps: installing the correct version of Java, adding the official Jenkins repository, starting the service, and […]
🟠 High ⏱ 5–30 min Last verified: 31 August 2019 Affected versions: Ubuntu 16.04 LTS 📖 ~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 […]
🟡 Medium ⏱ 5–30 min Last verified: 31 August 2019 📖 ~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 […]
Introduction to LDAP Security LDAP (Lightweight Directory Access Protocol) is the protocol that applications use to query and modify Active Directory. By default, Windows Server 2019 domain controllers accept LDAP connections on port 389 without requiring signing or channel binding, making them vulnerable to man-in-the-middle attacks where an attacker can intercept and relay LDAP authentication. […]
El sistema de nombres de dominio (DNS, por sus siglas en inglés) es un sistema que asocia varios tipos de información (como las direcciones IP) con nombres fáciles de recordar. De forma predeterminada, la mayoría de los clústeres de Kubernetes configuran automáticamente un…
🟠 High ⏱ 5–30 min Last verified: 30 August 2019 Affected versions: Ubuntu 16.04 LTS 📖 ~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 […]
