The SSH permission denied (publickey) error is a frustrating one. Here's how to fix it in a few simple steps.

With the release of Raspberry Pi Imager v1.6, it's now very easy to configure/customize Raspberry Pi OS image to match your requirements.

Flash Raspbian to your SD card with the Raspberry Pi Imager, our brand new imaging utility. Download it free today!

Dockerfile to create a Docker container image for Apt-Cacher NG - GitHub - sameersbn/docker-apt-cacher-ng: Dockerfile to create a Docker container image for Apt-Cacher NG

The blocks based, easy to use setup tool for Raspberry Pi

50 Years of Text Games by Aaron Reed is a favorite newsletter of mine. (It's a hard newsletter to read in your email right away, but a rewarding one to pile up and save.) It specializes in in-depth explorations, typica

One of the useful tools of SSH is the ssh-copy-id that is used to install the SSH key on the remote server to login into the server without providing the password for the login. So, the single sign-on and automated password-less login using SSH can be implemented easily using this tool. How to use ssh-copy-id on Ubuntu is explained in this article.

Unix/Linux tutorials for beginners: how-tos and troubleshooting techniques, latest news and technical projects.

I need to setup SSHFP records in the DNS for my host. I have done some searching but I haven't found any good example. What are SSHFP records? What does SSHFP records look like? How do I create SS...

Tutorial on how we can run or execute linux commands on remote systems over ssh. Learn about password-less authentication and sshpass utility.

I recently came across a situation where I had to download my SSH public key over the internet, but without common tools like netcat or a webserver. Therefore, I decided to download the key via DNS and I'll describe my method in this blogpost. SSH keys are useful when you

It is always good to have options when it comes to optimizing systems because not all software behaves the same way and not all institutions have the same

The need for observability is driven by increased demands for businesses to be more proactive in dealing with potential problems.

Here is the latest traffic news for King County as of Wednesday, July 7, according to the Washington State Department of Transportation.

Posted on Wednesday 7 Jul 2021. 582 words, 5 links. By Matt Webb.

Writing an operating system is no small task, but like everything else it is easier than it used to be. [JSandler] has a tutorial on how to create a simple operating system for the Raspberry Pi. On…

Recently, me and my fellow team mate Tharindu Muhandiram ran into a bit of an issue with regard to building a custom image for our…

Observability is widely misunderstood, but in an age of increased security breaches and more business being conducted online, it’s never been more important. How should organizations be thinking about their resources in multicloud environments? What strategies should they adopt to catch gaps in their security before hackers do? And also, what cultural changes might DevOps…

Trees protect cities from extreme heat. But in most places, only the rich enjoy them.

This is the third in a series of articles that explain how to improve your Linux personal computer's performance. My first article described how to unleash performance by identifying and resolving bottlenecks. My second article showed how to improve performance by upgrading your PC's hardware.

While CI/CD can improve the efficiency of an organization, there are many security considerations to take into account.

Most websites and applications ask users to create accounts with secure passwords so that they can provide tailored user experiences. While this tips the odds in favor of website developers, it certainly doesn't make life easier for users. [OS_EMBEDDED_MENU_RIGHT:]Sometimes the rules for creating passwords are so strict that it's hard to get a good and allowable combination. It would be much easier to have a tool that generates secure passwords that meet whatever rules the website or application requires.

Reaching that ‘last mile’ of DevOps is not only about CI/CD or full cycle development; it’s about working together as a group and automation.

Tutorial: Set up a YubiKey for GPG and SSH!

After the previous post, I was interested to see a short piece over at The New Yorker about basically the same idea—of spotting invasive species in the backgrounds of films and television shows, bu…

It always seemed like a silly question–school is for doing what you’re told, summer vacation was for discovering all the things that were worth caring about. As adults though, regardles…