How to Set Up a Mail Relay with Postfix and Mailgun on Ubuntu 16.04
Use Postfix and Mailgun to create a closed mail relay for bulk emails or your internal communications.
FreeBSD 12 — firefox-esr — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 17 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: firefox ESR — Other issue in the WebRTC component Related CVEs: CVE-2011-3079 CVE-2012-2808 CVE-2014-1492 CVE-2014-1493 CVE-2014-1494 CVE-2014-1496 CVE-2014-1497 CVE-2014-1498 +12 more Upstream summary: https://bugzilla.mozilla.org/show_bug.cgi?id=2035939 reports: Other issue in the WebRTC […]
Автоматизация развертывания Node.js в производственной среде с помощью Shipit в CentOS 7
Автор выбрал фонд Electronic Frontier Foundation для получения пожертвований в рамках программы Write for DOnations. Shipit —…
How to Use Prometheus Blackbox Exporter for Endpoint Monitoring on RHEL 8
The Prometheus Blackbox Exporter probes external endpoints over HTTP, HTTPS, TCP, ICMP, and DNS and exposes the results as Prometheus metrics. Unlike Node Exporter, which reports host-level statistics, the Blackbox Exporter answers the question “can this URL be reached right now?” — making it the right tool for synthetic uptime monitoring and SLA measurement. This […]
Ubuntu 14.04 LTS broken dependencies after interrupted upgrade
🟠 High ⏱ 5–30 min Last verified: 16 April 2020 Affected versions: 14.04 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 & […]
Windows Server 2016 MPIO Path Imbalance Sends Traffic Over Single Storage Link – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 16 April 2020 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 […]
How to Set Up Varnish Cache on SLES 15
Introduction This tutorial covers How to Set Up Varnish Cache on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]
openSUSE Tumbleweed — trojita — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory Related CVEs: CVE-2014-2567 Upstream summary: The OpenConnectionTask::handleStateHelper function in Imap/Tasks/OpenConnectionTask.cpp in Trojita before 0.4.1 allows man-in-the-middle attackers to trigger use of cleartext for saving a message into a (1) sent or […]
What is a Content Management System (CMS)?
A Content Management System, or CMS, is a software application that allows users to create, modify, and publish digital content and websites.
IBM AIX 7.1 — CVE-2019-4377 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 15–45 min Last verified: 16 April 2020 Affected versions: IBM AIX 7.1 📖 ~4 min read • Source: NVD CVE-2019-4377, IBM Support Bulletin CVE: CVE-2019-4377 NVD summary: IBM Sterling B2B Integrator 6.0.0.0 and 6.0.0.1 reveals sensitive information from a stack trace that could be used in further attacks against the system. […]