Servers

Using Ansible to Automate Deployment for Apps and IT Infrastructure

By Mike Goh July 3, 2020Developers Technical TutorialsDevOps, ServersNo Comments

Introduction Ansible is one of the few configuration management tools in the DevOps environment. It is an infrastructure automation platform used to deploy our applications and systems rapidly to enable continuous integration and continuous deployment. While there are others like…

How to Merge Server-side and Docker iptables Firewall Rules

By Mike Goh April 30, 2020Developers Technical TutorialsDocker, Firewall, Security, ServersNo Comments

Introduction Docker is widely used to place applications in containers. One of the reasons why Docker is so popular is because of security thanks to its isolation capabilities. For example, it allows you to isolate applications from each other. Installing…

Change Port and Disallow Root Login to Secure SSH Server

By Mike Goh April 24, 2020Developers Technical TutorialsNetwork, Security, ServersNo Comments

When you subscribe to a Linux VPS (Virtual Private Server) from any host providers, the default firewall rule is to accept all incoming connections to any ports hence you can connect via Port 22 using a SSH telnet client like…

How to Secure Server with Firewall using iptables

By Mike Goh April 23, 2020Developers Technical TutorialsFirewall, Security, ServersNo Comments

iptables is a command-line firewall utility that allows a system administrator to configure the IP packet filter rules made possible by the Netfilter modules complied into the Linux Kernel. The rules are kept to a bare minimum on the firewall…

Using Ansible to Automate Deployment for Apps and IT Infrastructure

How to Merge Server-side and Docker iptables Firewall Rules

Change Port and Disallow Root Login to Secure SSH Server

How to Secure Server with Firewall using iptables

Change Domain for WordPress Docker Container with phpMyAdmin

Using Ansible to Automate Deployment for Apps and IT Infrastructure

Set Up DKIM, SPF and Reverse DNS to Improve Mail Deliverability

Host Multiple Websites with jwilder nginx-proxy and letsencrypt-companion