Structured Query Language (SQL) is a language to query relational databases. You can read this post that is an introduction to relational databases. SQL Variants There are variants to SQL. For example, PL/SQL (Procedural Language for SQL) is an extension…
This post talks about endpoint security on Linux OS. Linux Endpoint Hardening Tools Lynis Lynis is free and open source software (FOSS) tool to audit Unix-like OSs. It is developed by Dutch company CISOfy. Lynis official website Lynis code repository…
The ideal fraction method is a normalization technique used in multi-criteria decision-making. This method is applied to normalize values for a criterion that needs to be maximized (where higher values are better), transforming the original scores into a scale from…
This post is about data mining. Data Mining Algorithms Data mining algorithms are used in data mining and machine learning. Data mining techniques or algorithms: Rule Induction Rule induction involves extracting useful if-then rules from data based on statistical significance.…
DOCSIS is an standard to exchange data over the coaxial cable, also known colloquially as TV cable. DOCSIS versions There are different versions of DOCSIS: DOCSIS 3.0 DOCSIS was ratified in the following ITU-T Recommendations: DOCSIS 3.1 The maximum speed…
This post discusses how to compare cells that have number in Excel. The approach is converting strings to text, and then comparing it. Two ways to convert a number to text are proposed: You might also be interested in… External…
MÉTRICA es una metodología para la planificación y gestión del ciclo de vida de los sistemas de información. Es desarrollada y empleada por la Administración General del Estado (AGE) de España. Fue creado por el Consejo Superior de Informática (CSI),…
This post discusses some aspects of artificial intelligence regarding security. AI Chatbot Security Concerns Summary of AI Chatbot Security Concerns Upload Sensitive Information Users or employees may upload sensitive information to the website. Malicious use of the Application This aspect…
Cl@ve es un servicio público de identificación digital ofrecido por las Administraciones Públicas de España. Es la plataforma para la identificación, autenticación y firma electrónica mediante el uso de claves concertadas, común para todo el Sector Público Administrativo Estatal. Cl@ve…
Voice over IP (VoIP) is a multilayer protocol that encapsulates in a tunnel audio video into IP packets to support voice calls an multimedia collaboration. VoIP is an alternative to the traditional public switched telephone network (PSTN). VoIP Protocols VoIP…