Getting Started With Flask
Learn how to use Flask — a Python micro web framework, to build your web applications. See how Flask handles routing, web page templating, and more.
Android SQLite Database Example Tutorial
Welcome to Android SQLite Example Tutorial. Android SQLite is the mostly preferred way to store data for android applications. For many applications, SQLite is the apps backbone whether it's used directly or via some third-party wrapper. Below is the final app we will create today using Android SQLite database.  Android SQLite […]
Ubuntu 14.04 LTS locale misconfiguration spams warning messages
🟢 Low ⏱ 5–30 min Last verified: 30 June 2019 Affected versions: 14.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
How to Set Up NAT on Windows Server 2012 R2
How to Set Up NAT on Windows Server 2012 R2 Network Address Translation (NAT) allows a Windows Server 2012 R2 machine to function as an internet gateway, translating private IP addresses from an internal network to a public IP address for outbound internet access. This is commonly used for branch offices, isolated lab networks, or […]
How to Set Up CircleCI Runner on SLES 12
Introduction This tutorial covers How to Set Up CircleCI Runner on SLES 12 on SLES 12. SLES 12 (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 12 system is up to date: zypper […]
How To Use sub() and gsub() in R
URL: https://www.progressiverobot.com/sub-and-gsub-function-r/ Introduction The sub() and gsub() functions in R will substitute the string or the characters in a vector or a data frame with a specific string. These functions are useful when performing changes on large data sets. In this article, you will explore how to use sub() and gsub() functions in R. Prerequisites […]
SaltStack Infrastructure: Creating Salt States for Nginx Web Servers
In this article, we will begin to dive into configuration management by creating Salt state files for Nginx. Nginx will be used on our web server nodes in all three environments in order to handle web requests.
FreeBSD 12 — lynx-current — security advisory — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 30 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: lynx — SSL certificate validation error Upstream summary: Axel Beckert reports: […] I was able to capture the password given on the commandline in traffic of an TLS handshake using […]
openSUSE Tumbleweed — obs-service-set_version — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2014-0593 Upstream summary: The set_version script as shipped with obs-service-set_version is a source validator for the Open Build Service (OBS). In versions prior to 0.5.3-1.1 […]
Cómo usar Find y Locate para buscar archivos en Linux
Buscar archivos es una tarea frecuente en cualquier sistema operativo. Los comandos “find” y “locate” de Linux se pueden utilizar para buscar archivos en el sistema de archivos. En este guía, se explicará cómo utilizar estas dos herramientas para hacer consultas específicas para los archivos.
