Latest Articles
Handshake Domains: Blockchain Powered DNS Is Here, But Should You Use It?
Handshake domains are a new type of DNS system that many domain name providers are starting to offer.
How to Set Up a Simple Free Website With Github Pages
Websites are getting easier to host everyday, with many services offering packages starting at less than $5 a month.
How to Check Directory Size From the Linux Command Line
While the Linux command ls can display the sizes of files, it doesn't work properly with directories, which will always be displayed as 4096 bytes.
How to View and Monitor Disk Space Usage From the Linux Command Line
While it's usually pretty clear if your system is running out of memory or using too much CPU time, disk usage is another key metric that can sneak up on you over time if you leave your server unattended.
How To Update and Maintain Separate Git Branches
One of Git's core features is the ability to make multiple versions of your project.
How To Apply Git Commit Diffs to Different Files
Git is a powerful version control system that allows for multiple branching versions of your project with automatic merging.
How to Create and Manage a Github Repository From the Command Line
Creating new Github repositories is a core part of many people's workflow, especially when starting new projects.
How to Automatically Turn Off AWS EC2 Instances
A common use case for EC2 On-Demand and Spot Instances is using powerful machines for short-term, one-off tasks.
How To Stop and Start AWS EC2 Spot Instances
Spot instances are AWS's way to sell off unused server capacity when demand isn't high.
How to Check If Your Server Is Vulnerable to the log4j Java Exploit (Log4Shell)
A critical exploit in widespread Java library has been found, disrupting much of the internet as server admins scramble to fix it.
How to Migrate an AWS S3 Bucket to Another Account or Service
AWS's Simple Storage Service (S3) is great for storing large amounts of objects, but it's also an API that's compatible with many other competiting services.
How to Debug Your Application's Performance
Application performance can be a critical issue for many businesses.
How to Fix Git Using the Wrong SSH Key & Account
When connecting to a remote Git server, like Github, your client must authenticate using HTTPS or SSH based tokens.
How to Add a Volume to an Existing Docker Container
While Docker is a useful tool for packaging and managing applications, it also presents many unique challenges, such as dealing with stored data.
Critical RCE Zero-Day Exploit Found in Popular Java Logging Library log4j, Affects Much Of The Internet
A critical remote code execution vulnerability has been found in log4j, a very popular logging tool used by most of the industry.
How to Set Up HTTPS Personal Access Tokens for Github Authentication
As of August 2021, Github has removed support for using your account password from the Git command line.
Should You Use an S3 Alternative For Object Storage?
Amazon's Simple Storage Service (S3) provides a very useful interface for storing objects in redudant cloud storage, where you don't have to worry about the underlying hardware.
How to Remove a Commit From Github
If you accidentally committed something you shouldn't have, and pushed it to Github, there are still ways to delete or modify it.
How to Mount or Symlink a Single File in a Docker Container
Docker volume and bind mounts are used to bind directories on the host OS to locations in the container's file system.
Should You Use HTTPS or SSH For Git?
When connecting to remote Git repositories like Github, you usually have two connection options---HTTPS or SSH.