Linux

How to Scale Django: Beyond the Basics — step-by-step Linux tutorial on Progressive Robot

How to Scale Django: Beyond the Basics

As a web app grows in popularity and number of users, the need to scale performance will continue to be a point of focus for its developer(s). In this tutorial, we will go over a few higher-level strategies for scaling apps built on Django, going beyond the initial scaling tips we’ve already covered.

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How To Install Wordpress on Centos 6 — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress on Centos 6

Wordpress is a free and open source website and blogging tool that uses php and MySQL. It was created in 2003 and has since then expanded to manage 22% of all the new websites created and has over 20,000 plugins to customize its functionality. This tutorial shows how to install Wordpress on a server with LAMP. It is written for Centos 6.

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How To Install and Use Jenkins on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use Jenkins on Ubuntu 12.04

Jenkins is an open source Continuous Integration tool that can be used to build software, deploy software, or deploy websites to various endpoints or to run unit/behaviour-driven software tests. This article will demonstrate how to install and configure Jenkins, as well as create your first job. After setting up the basics, you’ll schedule the build on specific times and install a plugin.

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Debian 10 — policykit-1 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — policykit-1 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 July 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-4034 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Set Up Varnish Cache as a Reverse Proxy on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Varnish Cache as a Reverse Proxy on RHEL 8

Varnish Cache is a high-performance HTTP accelerator designed to sit in front of web servers and serve cached responses at near-wire speed, offloading PHP and database work from your backend. On RHEL 8, Varnish is packaged in the default AppStream repository, making installation straightforward. This guide shows how to install Varnish, write a VCL configuration […]

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Common Problems 125144

Oracle Linux 8 – Common Problem 018 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 24 July 2021 Affected versions: Oracle Linux 8 📖 ~3 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 121564

Debian 9 – SSH login denied after hardening changes

🟠 High   ⏱ 5–30 min  Last verified: 24 July 2021 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 & […]

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Common Problems 118957

Ubuntu 14.04 LTS Boot Hangs at initramfs Prompt

🟡 Medium   ⏱ 5–30 min  Last verified: 24 July 2021 📖 ~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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Common Problems 118489

Ubuntu 16.04 LTS Clock Drift Breaks TLS and Kerberos

🟠 High   ⏱ 5–30 min  Last verified: 24 July 2021 Affected versions: 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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