ubuntu

Ubuntu 22.04 — rsyslog — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — rsyslog — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 January 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5404-1 Related CVEs: CVE-2022-24903 Upstream summary: Pieter Agten discovered that Rsyslog incorrectly handled certain requests. An attacker could possibly use this issue to cause a crash. Table of contents Symptom […]

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How To Install Elasticsearch, Logstash, and Kibana (Elastic Stack) on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Elasticsearch, Logstash, and Kibana (Elastic Stack) on Ubuntu 22.04

In this tutorial, we will go over the installation of the Elastic Stack on an Ubuntu 22.04 server. You will learn how to install all of the components of the Elastic Stack (including Filebeat, a Beat used for forwarding and centralizing logs and files) and configure them to gather and visualize system logs. We will install all components on a single server, which we will refer to as our Elastic Stack Server.

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Установка и настройка Ansible в Ubuntu 18.04 [Краткое руководство] — step-by-step Linux tutorial on Progressive Robot

Установка и настройка Ansible в Ubuntu 18.04 [Краткое руководство]

В этом руководстве мы расскажем, как устанавливать и настраивать Ansible на сервере Ubuntu 18.04. Более детальный вариант настоящего руководства с подробным разъяснениями каждого шага можно найти в статье [«Установка и настройка Ansible в Ubuntu…

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Common Problems 118491

Ubuntu 16.04 LTS – apt update shows Temporary failure resolving archive.ubuntu.com – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 January 2023 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 […]

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Common Problems 116902

Ubuntu 22.04 apt lock errors during updates

🟡 Medium   ⏱ 5–30 min  Last verified: 5 January 2023 📖 ~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 […]

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Ubuntu 20.04 — libcpanel-json-xs-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libcpanel-json-xs-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 January 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6667-1 Related CVEs: CVE-2022-48623 Upstream summary: It was discovered that Cpanel-JSON-XS incorrectly decoded certain data. A remote attacker could use this issue to cause Cpanel-JSON-XS to crash, resulting in a […]

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Common Problems 116950

Ubuntu 22.04 LTS DNS Resolution Intermittently Fails with systemd-resolved

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2023 📖 ~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 […]

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Ubuntu 14.04 — unzip — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — unzip — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 January 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5673-1 Related CVEs: CVE-2021-4217 CVE-2022-0529 CVE-2022-0530 https://launchpad.net/bugs/1957077 CVE-2014-9913 CVE-2016-9844 CVE-2018-1000035 CVE-2018-18384  +9 more Upstream summary: It was discovered that unzip did not properly handle unicode strings under certain circumstances. If […]

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A Complete Guide to Install Tomcat on Linux — step-by-step Linux tutorial on Progressive Robot

A Complete Guide to Install Tomcat on Linux

URL: https://www.progressiverobot.com/install-tomcat-on-linux/ Let's cover the steps to install Tomcat on Linux today. We have already covered the steps for [installation on CentOS here](/community/tutorials/install-apache-tomcat-9-centos-7). In this tutorial, we'll use Ubuntu to demonstrate the installation. You can follow this tutorial even if you're on a different distribution. To do so, make sure you use the package manager […]

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