Deploying a Secure Virtual Private Server with Ubuntu 20.04
Setting up a secure instance of Ubuntu 20.04 with Caddy, NGINX, Apache, PHP, MariaDB, PostgreSQL, Redis, and more
Created by Trevor Sawler - Ph.D.
Students: 228, Price: $44.99
Students: 228, Price: Paid
Many developers have been turning to Virtual Private Servers to host their projects, and with good reason: unlike in a shared hosting environment, you are not running the risk of someone else's badly written code resulting in poor performance or (worse yet) your site being compromised because of someone else's insecure programming.
With a Virtual Private Server, you have complete control over the software that is available to you, and you can fine tune the server to meet your exact needs. But setting up a secure VPS takes a bit of work, and requires a bit of learning.
This course will take you through the basics of setting up a fast, secure VPS on Linode, DigitalOcean, AWS Lightsail, Vultr or any other provider that offers VPS Linux hosting. We'll set up an Ubuntu 20.04 server with the most commonly needed software, and ensure that it is locked down as securely as possible. We will also go through best practices for adding users, software, and services, and ensure that we choose the right kind of server for a particular project. We will learn how to implement public and private keys for secure access using SSH, how to edit files on the remote server through the command line using vi or nano/pico, how to use the most common and useful Linux command line programs, and how to configure the most popular and useful server software.
Self-hosting with Ubuntu Linux: Creating an Email server
An email server you have full control over
Created by Harikrishna Natrajan - Freelance software engineer working on Linux
Students: 155, Price: $29.99
Students: 155, Price: Paid
Why should you self-host your email service?
A self-hosted email provides you with the following benefits.
You get to store emails on your own server that you have unlimited access to.
The server belongs to you and you can access every email ever sent or received by your system anytime and in any format. Why would you want to do that? It gives you access to every written communication in your company ever. Why is that important?
Legal proof: Because every written communication is saved and ready for you to use, and should a legal issue arise between yourself and any of your vendors / clients, you can use the emails as proof of communication and agreement of contract.
Data mining: Email is just data, and data can be analysed and queried. If every email that your company ever sent or received is stored in your own database, then you can run querying and data mining software through them so that you can find insights about your communication.
E.g. are your emails telling you that you are spending too much time answering basic questions about how to use a tool? Maybe it's time to create a Wiki page instead of using email.
E.g. are most of your emails about pricing and discounts? It's time to create a page comparing your different pricing plans and when clients are eligible for discounts.
Customer relation history: Since all the emails are on your server, you get to keep the entire history of your communication with every client on your server, never fearing the loss of that data. It's always available for you whenever you want.
Now think about it. Does GMail make such things possible? No. They give you a specific quota. Once that quota exceeds GMail starts deleting your oldest mails. And you can never get them. Nor does GMail allow you to query your emails directly in the form of a database.
Need more reasons on why you should self-host? Read on.
Take control of features and get rid of imposed limitations.
Have you tried to send a high-resolution photo through GMail? Well, it probably won't allow you because of the 25 MB limit per email. But, you can use Google Photos, can't you?
Why should I? Email is my choice of communication with whoever I want to send photos to. Why should a Silicon Valley tech company tell me that I shouldn't send large emails and should instead seek a service that allows large photos? Why should I spread my work across multiple services & leave the convenience of my email inbox just because a big tech company says so?
Why can't I send EXE files? Why can't I send ZIP files and instead resort to downloading and using RAR or 7ZIP to compress my files?
Scores of such limitations are imposed by big tech companies who dictate terms on how you should communicate with your own client. They impose restrictions on the size of each email, type of attachments, how many recipients you can send a message to at once, and so on.
As if that's not enough, here's another problem.
Costs increase as more employees join you and as you store more emails.
Most third-party services charge per inbox per month. They charge additionally if you need to expand the size of the inbox in order to accommodate your entire communication history and the inevitable addition in the future.
The more your company grows by number of people, you need to pay more for more inboxes. As you company grows in age, you need more storage to accommodate your entire history of communication.
Your email service bills will increase as your company expands, till one day you notice that it accounts for a large part of your monthly expenses.
With self-hosted email, you use the same server that you use for your other service, such as your company's website. And it doesn't matter if you are a proprieter, have 5 employees, 50, 500 or 5 million. One email server, if well setup, can scale gracefully.
But isn't it expensive and hard to set up an email server?
It's usually the large companies that set up their own emails, while startups don't do so. Just because it is exclusively the large companies that do so doesn't mean that the process requires dedicated personnel, deep pockets or extreme technical expertise.
You don't need to be a Fortune 500 company to have your own email.
In fact, the earlier you start, the better. So that you have complete control over your emails from day 1.
And you do not need a new server machine to host emails. If you are already self-hosting your own website, e-Commerce or SaaS, you can use that very server machine to host your emails.
Learn how to self-host your email
With my course on how to self-host an email server, you can learn how to set up your own and take complete control of emails within 2 and a half hours.
This 150-minute course can set your startup for a scalable solution for communicating with your customers through email, right from the outset. The set-up will take you less than the time it takes for you to watch your favourite Hollywood blockbuster. Even if you have never set up an email service before.
Here's what you will learn.
You will learn how to use Ubuntu Linux to create your own email server, using which you can send and receive emails without having to use third-party solutions like Gmail, Hotmail or Yahoo.
The course will walk you through installing the necessary software applications, configuring them securely and accessing them through GUI, so that you have your own safe and secure email service which you can access through an email client or a web browser.
Here are some people who have taken my course and have successfully set up their own email servers.
Glen from California, USA has a ticket booking for movies and theatres, and he has set up his own email server to automate the mailing of tickets and reminders to those who purchase tickets.
Carlos from Brazil set up his email server in a $5 Raspberry Pi to send data from his home automation sensors via email.
Rainer from Berlin, Germany uses a self-hosted email service to send automated daily reports from his Machine Learning powered system.
Sriram from Bengaluru, India set up a self-hosted email service for his 50-person company.
Stephan from London, UK chose to free his company from tech hegemony and set them on the path of self-reliance starting from their email service.
These are just a few examples from hundreds of students who have set up a self-hosted email service for their ventures after taking my course.
Now it's your turn.
You have chosen the difficult path of freedom. Now don't let the tech giants dictate what you can or can't do in your business.
Choose freedom. Choose to self-host.
Learn Ubuntu Fast: Learn, Practice, and Advance your Career
No fluff! Practical course in Linux Administration. Sed, Grep, Bash, Shell scripting, tcpdump, and much more!
Created by Mike Molak - VMware Instructor, Dual Cisco CCIE
Students: 93, Price: $19.99
Students: 93, Price: Paid
Welcome! My name is Mike, and I'm here to help you become proficient with Linux! My goal is to make it FUN!
Beginners welcome: no need to know anything about linux BUT I DO recommend that you have some background in general IT (help desk, engineering, administrator).
Learning Linux is hard. There's so many commands, and so many variations of those commands, it can be really difficult to know where to start. In this course I take a unique approach: I lecture, then lab in many cases, and then let you go explore! If your intent is to simply take a course and be an expert, this is not the course for you. This course is for those who are willing to work hard, explore, read documentation occasionally, and most importantly - try harder!
This is going to be a journey, but I know you can do it, and I'm here to help!
In this course, I'll cover things such as:
Linux basics (what is linux?)
Installation of Ubuntu Linux using the latest 20.04 release
All of the usual file management commands (ls, mv, cp, mkdir, rm, and more)
How to set file permissions and most importantly, understand how permissions work!
How to create your first shell script from scratch
How to troubleshoot basic network issues with tcpdump
Practical knowledge on how to use linux in an enterprise environment
Very condensed course - no fluff - learn it, then do it!
The course is designed with a logical progression so you will build upon knowledge learned in previous lessons
Take the leap, and let's get to learning Linux!
How to Install Linux Ubuntu Desktop
Step by step guide to install Ubuntu Desktop operating system, configure/complete updates, install Java and a Java game
Created by Dean Barnes - Deployment and Infrastructure Engineer
Students: 33, Price: $19.99
Students: 33, Price: Paid
This is the Ubuntu Desktop installation walkthrough course.
This course is designed for:
- novices and beginners
- Learners who would like to know what it takes to install the Ubuntu Desktop operating system
- Learners interested in an opportunity to experience the world of Linux and Ubuntu Desktop
Students will also be shown how to install Java into the Ubuntu Desktop and download and run a Java game known as Minecraft.
This course introduces users to:
- A high level view of the Ubuntu Linux Desktop operating system
- A review of features and providing helpful links for any problems you experience or getting additional help
- How and what to download for the Ubuntu software
- A screen step by step walkthrough of a basic deployment of the Ubuntu Desktop to a computer (also works on a virtual machine)
- A basic introduction of the operating system programs
- Steps to keep your Ubuntu Desktop up to date.
At the end of the course, a document containing all of the links and commands are attached to the lecture
If you view this course from end to end, it will take you about 45 minutes. If you are following along as you download your Ubuntu desktop, write it to DVD, install your Linux Ubuntu Desktop, do your updates, Java, and so on, it can take up to 3 hours depending on the speed of your hardware and your ability to navigate around the operating system and type commands.
This course has been designed so that you can follow along step by step in your own Ubuntu desktop installation scenario.
You should take this course if you have never worked with Ubuntu Linux Desktop and are looking to start but aren't sure what to download or how to answer the questions asked during the installation process. You will also benefit from instructions for installing Java and keeping your Ubuntu Desktop up to date through official software patches.