Linux

SLES 15 — libwsman3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libwsman3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 June 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:0654-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-3816 CVE-2019-3833 Upstream summary: Openwsman, versions up to and including 2.6.9, are vulnerable to arbitrary file disclosure because the working directory of openwsmand daemon was […]

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How To Install and Configure Slim Framework on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure Slim Framework on Ubuntu 14.04

This tutorial will illustrate the steps required to install and configure Slim Framework on a the cloud provider VPS. By the end of this tutorial, you will have a well organized, working instance of Slim Framework, complete with a folder structure that you can base your project in.

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How to Install and Configure Consul for Service Discovery on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Consul for Service Discovery on RHEL 7

How to Install and Configure Consul for Service Discovery on RHEL 7 As applications grow beyond a single server, tracking where every service is running — and whether it is healthy — becomes a significant operational challenge. Consul, developed by HashiCorp, is a distributed, highly available service mesh and service discovery tool that solves this […]

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Common Problems 115538

RHEL 7 firewalld Rich Rule Order Breaks DNAT

🟡 Medium   ⏱ 5–30 min  Last verified: 12 June 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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Initial Server Setup with Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

Initial Server Setup with Ubuntu 14.04

When you start a new server, there are a few steps that you should take every time to add some basic security and set a solid foundation. In this guide, we’ll walk you through the basic steps necessary to hit the ground running with Ubuntu 14.04.

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openSUSE Tumbleweed — pam_apparmor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — pam_apparmor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2016-1585 CVE-2017-6507 Upstream summary: In all versions of AppArmor mount rules are accidentally widened when compiled. Table of contents Symptom & Impact Environment & Reproduction […]

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How To Use the Bottle Micro Framework to Develop Python Web Apps — step-by-step Linux tutorial on Progressive Robot

How To Use the Bottle Micro Framework to Develop Python Web Apps

Python is a flexible programming language that works great for web applications. There are many frameworks available that can help you get your application running quickly. One of the most minimal of these frameworks is Bottle. In this guide, we will discuss how to install and use this framework to build Python web applications.

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Ubuntu 16.04 — libmatio — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libmatio — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 June 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5185-1 Related CVEs: CVE-2019-17533 Upstream summary: It was discovered that MATIO incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or obtain […]

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Ubuntu 18.04 — horizon — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — horizon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 June 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4675-1 Related CVEs: CVE-2020-29565 Upstream summary: Pritam Singh discovered that OpenStack Horizon incorrectly validated certain parameters. An attacker could possibly use this issue to cause OpenStack Horizon to redirect to […]

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