Linux

Как добавить пространство подкачки на Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Как добавить пространство подкачки на Ubuntu 18.04

Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом Один из наиболее простых способов предотвратить ошибки нехватки памяти в приложениях — добавить пространство подкачки на сервер. В…

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Common Problems 121184

Debian 10: Nginx serves incomplete TLS certificate chain

🟠 High   ⏱ 5–30 min  Last verified: 11 September 2020 Affected versions: Debian 10 📖 ~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 118400

Ubuntu 16.04 apt lock errors during updates

🟡 Medium   ⏱ 5–30 min  Last verified: 11 September 2020 📖 ~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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SLES 12 — libproxy1 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libproxy1 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 September 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2020:518-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25219 CVE-2020-26154 CVE-2012-4504 Upstream summary: url::recvline in url.cpp in libproxy 0.4.x through 0.4.15 allows a remote HTTP server to trigger uncontrolled recursion via a response […]

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Common Problems 117444

Ubuntu 20.04 LTS NO_PUBKEY Repository Signature Error

🟡 Medium   ⏱ 5–30 min  Last verified: 11 September 2020 📖 ~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 Install Apache2 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Apache2 on Debian 10

Introduction How to Install Apache2 on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. This tutorial […]

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How To Use Apache as a Reverse Proxy with mod_proxy on Debian 8 — step-by-step Linux tutorial on Progressive Robot

How To Use Apache as a Reverse Proxy with mod_proxy on Debian 8

In this tutorial, you will set up Apache as a reverse proxy using the `mod_proxy` extension to redirect incoming connections to underlying application server(s) running on the same network. There are instructions on setting up a simple web app using the Flask framework to show how Apache interacts with the real application hidden behind it, but you can also follow this tutorial using your existing application server, if you have one.

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Oracle Linux 8 — redis:5 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — redis:5 — vulnerability — patch and remediation guide (ELSA-2019-2002)

🟠 High   ⏱ 15–60 min  Last verified: 11 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2002 Related CVEs: CVE-2019-10193 CVE-2019-10192 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How To Set Up a JupyterLab Environment on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up a JupyterLab Environment on Ubuntu 18.04

JupyterLab is the update over Jupyter Notebook environments, offering a highly feature-rich UI that makes it easier for users, particularly in the fields of Data Science and AI, to perform their tasks. In this tutorial, you’ll install and set up JupyterLab on your Ubuntu 18.04 server. You’ll also be configuring your server to be able to connect to the JupyterLab instance remotely from any web browser, securely, using a domain name

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