Renz Mae Ladroma

Nowadays, using chatbot to grow business is becoming increasingly popular and grows continuously. For developers, building a bot sounds like an exciting challenge. But in reality, creating your own chatbot would make you spend hundreds of hours learning and putting together all the infrastructure and code required to get it up and running. In this tutorial, we’re going to show you how to build a chatbot using Botpress, an open source chatbot tool that enables developers to create bots very qu...

Introduction
Keepalived is a lightweight and high availability framework solution in Linux. It uses Linux Virtual Server (LVS) to perform load balancing and failover tasks on. The Keepalived can be used to monitor systems and to automatically failover to a standby if problems occur. If the primary server goes down, the floating IP will be moved to the second server automatically, allowing service to resume.
How Does Keepalived Work?
In Master-Slave Replication database setup, when the Master ...

Introduction
Implementing Master-Slave replication (also known as mirror) is really important to prevent data loss, increase performance, support database backup and as one of the solutions to alleviate system failures. What will you do if your database server crashed?
To give you an idea on what Master-Slave is, imagine two MySQL server instances where the Master server is being copied automatically to a Slave server while the master is still fulfilling its job. You can actually have multipl...

Introduction
There are more than 56,000 plugins available to choose from the plugins directory of WordPress which includes free and premium plugins sold by third-party companies and developers. These plugins offer tons of features and functionality that your site doesn’t have.
Think of WordPress plugins like an apps for your website. With plugins, you can customize your site to better suit your needs and serve your visitors. Like WordPress itself, plugins are also written in the PHP programmi...

Introduction
Linux operating systems are considered to be more stable and secure than other operating systems. However, viruses and threats can live anywhere and Linux may not be completely immune to threats. Viruses can harm systems regardless the operating system used. Installing an antivirus to a Linux server can protect it from malware, viruses or any malicious attacks.

Introduction
As its name suggests, Virtual IP address (VIP) is an IP address that doesn't have an actual physical network interface. Incoming packets are sent to the VIP, but all packets travel through the real network interfaces.
Virtual IP address is commonly used for database high availability. Applications use it for database connections instead of the normal host IP address. When the active database fail, the VIP will be shifted to the newly promoted host.
Tutorial
Step 1
Run this comman...

Introduction
Linux operating systems are considered to be more stable and secure than other operating systems. However, viruses and threats can live anywhere and Linux may not be completely immune to threats. Viruses can harm systems regardless the operating system used. Installing an antivirus to a Linux server can protect it from malware, viruses or any malicious attacks.
There are plenty of antivirus options out there for Linux servers but in this tutorial, we are going to use ClamAV, an o...

Introduction
As defined from the official Redis website:
"Redis is an open source, in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries."
Redis data is very fast to write to and read from since it only lives in memory. Redis provides RDB persistence which is the simplest Redis persistence mode that performs ...

The moment you enter the walled city of Intramuros, you’ll feel like a time machine has brought you back to the Spanish colonial period in the Philippines. Going around this oldest district in Manila, you will surely fall in love with its old world charm.
From when the city was founded in 1571 until the end of the Spanish rule in 1898, Intramuros was Manila. The name Intramuros means “inside the wall.” For 400 years, Intramuros served as the center of the Spanish occupation, originally built ...