my IT security thoughts, suggestions, and miscellaneous info
Webmin is a web-based interface for system administration for Linux using any modern web browser. NOTE: Do no install Webmin if you are planning to install Virtualmin. The Webmin features are already included in Virtualmin.
Building on the basic Ubuntu Cloud Server (with Emerging Threats Protection) we will create an all-in-one internet hosting server using the Virtualmin web hosting control panel.
This will install and configure Firewalld with an IP blocklist for specific countries and an IP blocklist for IPs and IP netblocks that are known threats. This uses the IP Sets utility for faster table updates to the blocklist and faster matching in the firewall.
After deploying a new Ubuntu Linux server on Digital Ocean or Linode, there are a few customization steps I take to improve usability and security of the server. These instructions are assuming you’ve install Ubuntu Linux 20.04 LTS.