October 2019 - Page 46 of 69

How to Set Up SLES 15 in Oracle Cloud Infrastructure — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up SLES 15 in Oracle Cloud Infrastructure

Introduction This tutorial covers How to Set Up SLES 15 in Oracle Cloud Infrastructure on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: […]

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FreeBSD 12 — punbb — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — punbb — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: punbb — NULL byte injection vulnerability Related CVEs: CVE-2006-4759 Upstream summary: CVE Mitre reports: PunBB 1.2.12 does not properly handle an avatar directory pathname ending in %00, which allows remote […]

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What are HTTP Cookies? — step-by-step DevOps tutorial on Progressive Robot

What are HTTP Cookies?

HTTP Cookies — also known as web cookies, browser cookies, or simply just cookies — are small pieces of data sent from a web server to a user’s browser. Although it depends on how a website or application uses cookies, a user’s web browser will typically store a cookie sent from a server as a way to retain persistent information about the user even after they leave the given website.

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Python sum() — step-by-step Python tutorial on Progressive Robot

Python sum()

URL: https://www.progressiverobot.com/python-sum/ Python sum() function is used to get the sum of numbers of an iterable. Python sum() Python sum() function syntax is: sum(iterable[, start]) start is an optional number with default value of 0. If start is provided, then the sum of start and all the numbers in the iterable is returned. Python sum() […]

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FreeBSD 12 — urban — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — urban — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: urban — stack overflow vulnerabilities Related CVEs: CVE-2005-2864 Upstream summary: Several filename-related stack overflow bugs allow a local attacker to elevate its privileges to the games group, since urban is […]

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Debian 9 — debian-edu-config — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — debian-edu-config — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-3467 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 Install and Configure Julia on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Julia on Debian 9

Introduction How to Install and Configure Julia on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]

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Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide (ELSA-2019-1175)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1175 Related CVEs: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2018-20815 CVE-2019-11091 CVE-2019-3855 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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