ubuntu

Ubuntu 18.04 — mini-httpd — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — mini-httpd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 October 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4848-1 Related CVEs: CVE-2018-18778 Upstream summary: It was discovered that ACME mini_httpd did not properly handle HTTP GET requests with empty headers. A remote attacker could use this vulnerability to […]

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Common Problems 118611

Ubuntu 16.04 LTS – severe time drift causes TLS and token failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 October 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 […]

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如何在Ubuntu 18.04服务器上安装Python 3并建立本地编程环境 — step-by-step Linux tutorial on Progressive Robot

如何在Ubuntu 18.04服务器上安装Python 3并建立本地编程环境

Python是一种灵活多样的编程语言。它的用途广泛,在脚本、自动化、数据分析、机器学习和后端开发方面都具有优势。Python于1991年首次发行,名字的灵感来源于英国喜剧团体”Monty Python”,因此Python开发团队希望让Python用起来很有趣。易于安装配置、代码风格相对简单直接、有即时的反馈和报错,这些特性让Python成为编程初学者的一个很好选择,也同样适合有经验的程序员。[Python…

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SaltStack Infrastructure: Installing the Salt Master — step-by-step Linux tutorial on Progressive Robot

SaltStack Infrastructure: Installing the Salt Master

In this article, we’ll introduce the various environments we’ll be building out and install the Salt master daemon onto our primary server. This is the core system that will house our configuration instructions, control our infrastructure nodes, and manage our requirements.

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How To Install Apache Tomcat 7 on Ubuntu 14.04 via Apt-Get — step-by-step Linux tutorial on Progressive Robot

How To Install Apache Tomcat 7 on Ubuntu 14.04 via Apt-Get

Apache Tomcat is a web server and servlet container that is used to serve Java applications. Tomcat is an open source implementation of the Java Servlet and JavaServer Pages technologies, released by the Apache Software Foundation. This tutorial covers the basic installation and some configuration of Tomcat 7.0.x on Ubuntu 14.04.

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Common Problems 117961

Ubuntu 18.04 Time Sync Drift Causes TLS and Login Issues

🟡 Medium   ⏱ 5–30 min  Last verified: 2 October 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 […]

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How To Centralize Your Docker Logs with Fluentd and ElasticSearch on Ubuntu 14.04 — step-by-step Docker tutorial on Progressive Robot

How To Centralize Your Docker Logs with Fluentd and ElasticSearch on Ubuntu 14.04

[Fluentd](https://www.fluentd.org) is an open source data collector designed to unify logging infrastructure. It is designed to bring operations engineers, application engineers, and data engineers together by making it simple and scalable to collect and store logs. This tutorial demonstrates how to install Fluentd and use it to collect logs from Docker containers. We’ll stream the data to another container running Elasticsearch on the same Ubuntu 14.04 server.

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