Tag: Ubuntu

What is Webmin?

Webmin is a browser-based graphical interface to help you administrate your Linux server.  Much like cPanel or Plesk, Webmin allows you to set up and manage accounts, Apache, DNS zones, users and configurations.  As these configurations can get somewhat complicated Webmin works to simplify this process. The result is fewer issues during server and domain setup.  Which results in a stable server and a pleasant administration experience. Unlike Plesk or cPanel, Webmin is completely free and open to the public. Unfortunately, here at Liquid Web, we do not offer managed support for Webmin, but we are always willing to assist as much as possible when issues arise.   You can download Webmin from their site. Also, you can find some excellent documentation on this interface.

Configuring Multi-User FTP with User Isolation

This article is intended to give an overview of a chroot environment and configuring your FTP service for user isolation. This is done with a few lines within the main configuration file of the FTP service.

Our last article on Ubuntu security suggestions touched on the importance of passwords, user roles, console security, and firewalls. We continue with our last article and while the recommendations below are not unique to Ubuntu specifically (nearly all discussed are considered best practice for any Linux VPS server or dedicated server) but they should be an important consideration in securing your server.

Thank you for taking the time to review this important information. You will find this guide broken down into six major sections that coincide with Ubuntu’s security policy guide. The major topics we talk on throughout these articles are as follows:

What is a VirtualBox?

This is handy when you need to run software that is only available on one Operating System, for example, if you wanted to run Windows software on your Ubuntu computer or vice versa. The only limitations are RAM and disk space for running each virtual machine.

Mod_security, also commonly called Modsec for short, is a powerful WAF (Web Application Firewall) that integrates directly into Apache’s module system. This direct integration allows the security module to intercept traffic at the earliest stages of a request. Early detection is crucial for blocking malicious requests before they are passed along to web applications hosted by Apache websites. This provides and extra layer of protection against common threats a server faces. This article will explore the installation of mod_security along with the CRS (Core Rule Set) in an Ubuntu 16.04 LTS Server running Apache 2.4.

What is the purpose of Git?

Git gives you a way to not only track changes in source code, but it can also be used to track changes in files.  It then stores the data in what is called a repository, also known as a repo. In short, Git is a tool used as a version control system (VCS), allowing you to distribute changes from your local machine to the repo and vice versa.  In this tutorial, we’ll be instructing on how to install and configure git onto an Ubuntu 18.04 server.

What is a Service Mesh?

A service mesh is a layer of communication and control between applications or microservices and the network stack they typically communicate over. This layer controls communication and helps microservices share data. This service-to-service interaction is governed by logic built into the service mesh layer. Simply put, microservices are small or partial applications, or individual functions, and the network stack is the physical networking layer.

There are multiple ways of installing software on Debian based systems like Ubuntu and Mint. Tools like apt, apt-get, aptitude and/or synaptic are usually used to install single applications into the desktop editions of those OSes. Alternatively, Tasksel is a command line app for installing a “group” of related packages onto a server. Tasksel is not installed by default on the desktop editions of the ‘nix’ versions that contain the above-mentioned package managers but, it is installed on later versions of Debian and Ubuntu server editions.

Have you ever logged into your server and seen a message like this?