Tutorials
Observability, devops and development guides.
How to configure Postfix on Ubuntu 20.04 as your outgoing email server
One of the most common questions you need to answer when setting up a server for your web project is how you are going to be sending emails. There are paid, hosted services that provide email sending capability...
July 12, 2020
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UbuntuPostfix
Changing server name or hostname on a Linux machine
When you create a virtual machine on Amazon AWS or another cloud provider, you may realize that the hostname was assigned automatically (which is the case with EC2 VMs on AWS if you don't attach a specific tag to the server) or is incorrect...
June 23, 2020
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Linux
Resizing Ubuntu 20.04 partition on AWS
If you resized an EBS volume attached to your EC2 instance on AWS you may have noticed it's not immediately visible by Ubuntu. In order to be able to use the newly assigned disk space, the parition on that volume needs to be extended first...
June 19, 2020
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LinuxUbuntuAWS