As a software developer, you’re most likely using SSH keys. Doing system administration or pushing commits to your source control like GitHub or GitLab is considered to be a best practice doing it over SSH with public key authentication instead of passwords. And because you’re doing both in …

You may download a ZIP file from the Internet and need to unzip it to a specific directory. On Unix and Linux, you can stay in the command line and unzip a packaged ZIP file to the folder of your choice! {{outline}} Unzip Into a Folder All Linux and Unix …

Cron jobs are a nice way to automatically run scheduled tasks. The cron service in Linux systems is the typical approach when scheduling commands on the operating system. {{outline}} Testing a Cron Job Recently the certbot from Let’s Encrypt didn’t automatically renew SSL certificates anymore. We used a …

We recently provisioned a new Debian VM and noticed that the sudo command wasn’t available. Our typical workflow includes the sudo command at the beginning of commands. The good news: you can install the sudo command on Debian and give your user the “sudo” permissions. {{outline}} Install the “sudo” …

Running an Ubuntu or Debian operating system on your servers comes with a long lifetime. You won’t switch servers and migrate your applications that often. You’ll maintain your system now and then and update installed packages to keep your system secure. Recently, while maintaining the software on our …

Installing packages with the apt-get package manager on Ubuntu or Debian usually fetches the latest known version from the repositories. This is a comfortable behavior to use an up-to-date version of the package. If you want to install a specific package version, you can do that by appending an equal …

We recently updated our SSL certificate for futurestud.io. We decided to use AES256 for the new SSL certificate which requires a password for the .key file. At this point, we didn’t think of any problems with nginx. The nerve-racking part was waiting in secret! {{outline}} Problem: Nginx Asking …

Managing remote servers requires either a very good memory to remember connection options like usernames, remote addresses, ports and further details or a good way to document all the details for each server. The SSH config file should be your helping hand to control and simplify SSH connections. If you …