June 2020 - Page 41 of 66

How to Install Perl on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Install Perl on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to install perl on ibm aix 7.1 on IBM AIX […]

Read more
How to Audit Security with Lynis on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Audit Security with Lynis on FreeBSD 12

Introduction This guide explains how to Audit Security with Lynis on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

Read more
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.

Read more
FreeBSD 12 — php55-xsl — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php55-xsl — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-6834 CVE-2015-6835 CVE-2015-6836 CVE-2015-6837 CVE-2015-6838 Upstream summary: PHP reports: Core: Fixed bug #70172 (Use After Free Vulnerability in unserialize()). Fixed bug #70219 (Use after […]

Read more
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.

Read more
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: 25 May 2026 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 […]

Read more
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: 25 May 2026 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 […]

Read more
How to Set Up a FreeBSD Jail for Web Hosting on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a FreeBSD Jail for Web Hosting on FreeBSD 12 (FREEBSD-12-2)

Introduction How to Set Up a FreeBSD Jail for Web Hosting on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service […]

Read more
CHAT