Postfix es un popular agente de transferencia de correo (MTA) de código abierto que puede usarse para dirigir y entregar correo electrónico en un sistema Linux. Se estima que alrededor del 25 % de los servidores de correo público de Internet cuentan con Postfix. En esta…
This tutorial covers the basic commands to add, grant permissions to, and delete users. It is written for both CentOS and Ubuntu.
How to Configure Suricata IDS/IPS on RHEL 7 Suricata is a high-performance, open-source network threat detection engine maintained by the Open Information Security Foundation (OISF). It can operate as an Intrusion Detection System (IDS), passively monitoring traffic and alerting on suspicious patterns, or as an Intrusion Prevention System (IPS), actively blocking malicious connections using the […]
🟡 Medium ⏱ 5–30 min Last verified: 15 September 2019 Affected versions: Debian 9 📖 ~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 ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2017-17528 Upstream summary: backends/platform/sdl/posix/posix.cpp in ScummVM 1.9.0 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote […]
🟡 Medium ⏱ 5–30 min Last verified: 15 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 […]
ClickHouse is an open-source, column-oriented analytics database created by [Yandex](https://yandex.com) for OLAP and big data use cases. In this tutorial, you’ll install the ClickHouse database server and client on your machine. You’ll use the DBMS for typical tasks and optionally enable remote access from another server so that you’ll be able to connect to the database from another machine.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2025:14697-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-2877 CVE-2015-8241 CVE-2015-8317 Upstream summary: parser.c in libxml2 before 2.9.0, as used in Google Chrome before 28.0.1500.71 and other products, allows remote attackers to cause […]
🟢 Low ⏱ 5–15 min Last verified: 15 September 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-3709-1 Related CVEs: CVE-2018-0499 Upstream summary: It was discovered that Xapian-core incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code. Table of contents Symptom & […]
🟢 Low ⏱ 5–15 min Last verified: 15 September 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5375-1 Related CVEs: CVE-2019-16165 Upstream summary: It was discovered that GNU cflow was incorrectly handling memory cleanup operations at the end of a compilation module. An attacker could possibly use […]
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