September 2020 - Page 20 of 66

How To Install Webmin on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Webmin on Ubuntu 16.04

Webmin is an easy to use, modern, web control panel for any Linux machine. It allows you to administer your server through an simple interface. With Webmin, you can change settings for common packages on the fly. In this tutorial, you’ll install…

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Ubuntu 16.04 — spamassassin — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — spamassassin — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4899-1 Related CVEs: CVE-2020-1946 CVE-2020-1930 CVE-2020-1931 CVE-2018-11805 CVE-2019-12420 CVE-2017-15705 CVE-2018-11780 CVE-2018-11781 Upstream summary: Damian Lukowski discovered that SpamAssassin incorrectly handled certain CF files. If a user or automated system were […]

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How to Define Functions in Python 3: Complete Guide (2025–2026)

How to Define Functions in Python 3: Complete Guide (2025–2026)

Learning how to define functions in Python 3 is one of the most essential and powerful skills at Progressive Robot — functions are reusable blocks of code that perform specific tasks, accept inputs (parameters), return outputs, and make your programs modular, readable, testable, and scalable for everything from automation scripts to web APIs, data pipelines, AI models, and enterprise applications.

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Amazon Linux 2 — ldns — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — ldns — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2032 Related CVEs: CVE-2020-19860 Upstream summary: When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information […]

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