March 2021 - Page 10 of 63

Python String to Int, Int to String — step-by-step Python tutorial on Progressive Robot

Python String to Int, Int to String

URL: https://www.progressiverobot.com/python-string-to-int-int-to-string/ In this tutorial, we will learn how to convert python String to int and int to String in python. In our previous tutorial we learned about [Python List append](/community/tutorials/python-list-append-method) function. Python String to Int If you read our previous tutorials, you may notice that at some time we used this conversion. Actually, this […]

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Oracle Linux 8 — libsndfile — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libsndfile — vulnerability — patch and remediation guide (ELSA-2021-3253)

🟠 High   ⏱ 15–60 min  Last verified: 27 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3253 Related CVEs: CVE-2021-3246 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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Amazon Linux 2 — memcached — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — memcached — multiple vulnerabilities (2 CVEs) — 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 ALAS2MEMCACHED1.5-2025-001 Related CVEs: CVE-2021-37519 CVE-2018-1000115 Upstream summary: Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service via crafted authenticattion file. (CVE-2021-37519) Table of contents […]

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How to Install Prometheus on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Prometheus on Debian 9

Introduction This guide explains how to Install Prometheus on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the standard repositories […]

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How To Install DenyHosts on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Install DenyHosts on Ubuntu 12.04

DenyHosts is a security tool written in python that monitors server access logs to prevent brute force attacks on a virtual private server. The program works by banning IP addresses that exceed a certain number of failed login attempts. This tutorial explains how to install denyhosts, how to whitelist your IP address, and where to find the denyhosts configuration file. It is written for Ubuntu 12.04.

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Oracle Linux 8 — polkit — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — polkit — vulnerability — patch and remediation guide (ELSA-2022-1546)

🟡 Medium   ⏱ 10–30 min  Last verified: 27 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1546 Related CVEs: CVE-2021-4115 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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Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2020-1341)

🔴 Critical   ⏱ 15–90 min  Last verified: 27 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1341 Related CVEs: CVE-2020-6819 CVE-2020-6820 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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