ubuntu

Common Problems 119000

Ubuntu 14.04 LTS rsyslog Queue Backlog Fills Root Filesystem

🟠 High   ⏱ 5–30 min  Last verified: 11 June 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 & […]

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Ubuntu 18.04 — vcftools — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — vcftools — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 June 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4835-1 Related CVEs: CVE-2018-11099 CVE-2018-11129 CVE-2018-11130 CVE-2019-1010127 Upstream summary: It was discovered that VCFtools improperly handled certain input. If a user were tricked into opening a crafted input file, VCFtools […]

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Cómo configurar claves de SSH en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo configurar claves de SSH en Ubuntu 20.04

SSH, o shell seguro, es un protocolo cifrado que se usa para administrar servidores y comunicarse con ellos. Al trabajar con un servidor de Ubuntu, es probable que pase la mayor parte de su tiempo en una sesión de terminal conectada a su servidor a través de SSH. En esta…

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Common Problems 119050

Ubuntu 14.04 LTS PHP-FPM Pool Exhaustion Causes 502 Errors

🟠 High   ⏱ 5–30 min  Last verified: 10 June 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 & […]

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How To Secure PostgreSQL Against Automated Attacks — step-by-step Linux tutorial on Progressive Robot

How To Secure PostgreSQL Against Automated Attacks

In this tutorial, we will show an essential first step toward mitigating the specific risk that can be created when configuring PostgreSQL to allow remote connections. While this an important first step, since servers can be compromised in other ways, we also recommend that you take additional measures to protect your data, outlined in the section, [Additional Security Considerations](#additional-security-configuration).

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Ubuntu 20.04 — hdf5 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — hdf5 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5272-1 Related CVEs: CVE-2018-17233 CVE-2018-17234 CVE-2018-17237 Upstream summary: It was discovered that HDF5 incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. […]

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