Over the past two years since I began using Tailscale, it has become an invaluable tool. Tailscale has enabled me to achieve many tasks that previously required complex setups. One of the most significant achievements was being able to SSH into my home development machine directly from my phone 😄.

By connecting my phone to Tailscale and using JuiceSSH, an Android app for SSH access, I could SSH into my home machine, deploy applications, and run maintenance scripts—all from my phone. Peaceful trips away from my desk.

Remote Development Made Simple

Tailscale has also made remote development seamless. By installing Tailscale on a laptop, I was able to use VS Code’s Remote Development feature to access my home development machine via SSH. This setup allowed me to work from any laptop without the need to install databases or development tools locally. Even a basic Chromebook or an ultra-light laptop turned into a powerful development workstation, as all the actual computing happened on my home machine over SSH.

I even took it a step further by installing code-server on my dev machine. This allowed me to access a full-fledged development environment from my samsung tablet via Tailscale.

What is Tailscale?

For those unfamiliar, Tailscale is a VPN software based on WireGuard. It allows you to create a secure network between your devices effortlessly. All you need to do is install Tailscale on your device, start the program, and your device joins the network—no advanced configuration required. It’s an easy-to-use, straightforward VPN solution.

By connecting my devices and home lab to this VPN, I gained the ability to access my computers remotely from anywhere.

Using an Exit Node for Secure Browsing

Tailscale allows you to set up one of your devices as an exit node. This means that when you’re using another device, you can route all your internet traffic through the exit node. For example, when I’m traveling, I set up my home computer as an exit node, ensuring that my internet traffic behaves as if I’m accessing it from home. This not only secures my browsing but also obscures my activities from public networks like those at hotels, cafes, or Airbnbs, as all they see is traffic going to Tailscale’s network, fully encrypted.

Note: Tailscale attempts to establish direct connections between devices. When that’s not possible, it uses relay servers.

In Rails applications, ActionMailer is a powerful module used to send emails. It’s essential to configure your ActionMailer settings correctly to ensure that your application can send emails reliably through your chosen SMTP server. Typically, these settings are configured in your environment files (e.g., config/environments/production.rb). However, there may be instances where you need to override these settings temporarily through the Rails console—for example, when testing a custom configuration or troubleshooting email delivery issues.

2024 Hacktoberfest has begun, and I decided to dive into some open-source contributions! One project that caught my eye was the Scanner Server. It offers a web interface for using scanners, which seemed pretty interesting.

I was eager to contribute but quickly realized I didn’t have a scanner to test it with 😅. Fortunately, Linux’s SANE (Scanner Access Now Easy) software comes to the rescue! It includes a feature that lets you select a test scanner model. With this, you always have a virtual scanner called “test” available. While it only scans a black image, it behaves just like a real scanner for all practical purposes.

Docker is an efficient way to use command-line tools without needing to install them or their required libraries. Recently, I had a use case where I needed to take an SQL dump of a schema from a PostgreSQL database. The problem was that the PostgreSQL DB was version 16.3, while my local DB was only version 15. Using my local pg_dump to access the remote database resulted in a version incompatibility error. To fix this, I would either need to upgrade pg_dump or have both versions installed simultaneously on my machine. I didn’t want to do either. This is where Docker came to the rescue.

Amazon Elastic Container Registry (ECR) is a service provided by Amazon for hosting our Docker/container images. The cost of downloading these images to a server or ECS (Elastic Container Service) within the same zone is free. However, downloading or uploading from the public internet incurs costs, as does storage space usage.

During the development and deployment of your project, you may find yourself building images as frequently as every 30 minutes. This frequency reflects my own experience. Whenever new code is merged with the master branch, it triggers a code build pipeline. This pipeline ultimately pushes the latest image to ECR, typically tagged as “latest.” Consequently, the previous image remains in the repository but becomes untagged. While retaining a few versions of older deployments facilitates easy rollbacks, after a day or two, they tend to become redundant. At this juncture, they serve no purpose other than incurring storage costs.