如何在Python3中构造“for循环”
在计算机编程中，运用循环语句可以让我们自动化、重复多次执行相似的任务。在这个教程里，我们将介绍Python中的for循环 一个for循环，对于“代码的重复执行”的实现，是基于循环计数器或循环变量。这意味着：最常使用for循环的情况，是在进入循环之前已经知道需要重复的次数。这与“以终止条件决定何时终止循环”的 while 循环 不同。
How to Configure ZFS Encryption on FreeBSD 12
Introduction Deploying configure zfs encryption on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]
Ubuntu 18.04 — icu — multiple vulnerabilities (2 CVEs) — 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-5133-1 Related CVEs: CVE-2020-21913 CVE-2020-10531 Upstream summary: It was discovered that ICU contains a use after free issue. An attacker could use this issue to cause a denial of service […]
How to Install Anbox on Linux Mint?
URL: https://www.progressiverobot.com/install-anbox-on-linux-mint/ This article goes over the steps to install Anbox on Linux Mint. Ever wondered how cool it would be to be able to run android applications on your Linux system? Well, Anbox helps you do exactly that. Anbox is short for Android in a box and it is exactly what it sounds like! […]
Oracle Linux 8 — python39:3.9 and python39-devel:3.9 — vulnerability — patch and remediation guide (ELSA-2022-1763)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-1763 Related CVEs: CVE-2021-43818 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
How To Protect SSH with fail2ban on CentOS 6
fail2ban provides a way to automatically protect virtual servers from malicious behavior. This tutorial shows you how to download the required EPEL repository needed to install Fail2Ban, copy the Configuration File, configure the fail2ban defaults, and configure the ssh defaults. This tutorial describes the required steps to set up fail2ban on CentOS.
FreeBSD 12 — ImageMagick7-nox — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: ImageMagick7 — multiple vulnerabilities Related CVEs: CVE-2016-3714 CVE-2016-3715 CVE-2016-3716 CVE-2016-3717 CVE-2016-3718 CVE-2016-8862 CVE-2016-8866 CVE-2016-9298 +12 more Upstream summary: CVE reports: Several vulnerabilities have been discovered in ImageMagick: CVE-2021-20313: A flaw […]
How To Implement PHP Rate Limiting with Redis on Ubuntu 20.04
Redis (Remote Dictionary Server ) is an in-memory open source software. It is a data-structure store that uses a server’s RAM, which is several times faster than even the fastest Solid State Drive (SSD). This makes Redis highly responsive, and therefore, suitable for rate limiting. In this tutorial, you’ll implement a PHP script for rate limiting with Redis on an Ubuntu 20.04 server.
How to Configure iSCSI Initiator for SAN Access on Windows Server 2016
How to Set Up iSCSI Initiator to Connect to SAN Storage on Windows Server 2016 iSCSI (Internet Small Computer Systems Interface) is a protocol that allows servers to access block-level storage devices over standard TCP/IP networks. Instead of requiring expensive Fibre Channel infrastructure, iSCSI enables Storage Area Network (SAN) connectivity over ordinary Ethernet, making enterprise-class […]
Dar los primeros pasos con redes definidas por software y crear una VPN con ZeroTier One
Actualmente, cada vez se crean más proyectos de software a través de equipos cuyos miembros trabajan juntos desde ubicaciones geográficas apartadas. Aunque este flujo de trabajo ofrece muchas ventajas claras, existen casos en los cuales los equipos pueden desear vincular sus…
