Fetching fresh image preview data from Facebook
Sometimes I go to share a link on Facebook from my website, and Facebook has an older image in its cache that it uses for the preview. I found out recently t...
Recent Posts
Adding color back to the Mac terminal
Did your terminal lose color after changing the color scheme? Add it back with these two lines in ~/.bash_profile.
Removing a file from staging in git
If you have an unwanted file that is staged for commit, but you want to preserve your changes to it for committing later, execute this command:
How to grayscale an image with CSS
CSS3 filters work in most browsers and allow web developers to add interesting effects to photos, including converting them to grayscale.
Mac Adware removal
I had to clean up a Mac with some browser hijacker malware recently. This tool proved to be the most effective.
How to view the octal permissions of a file or folder in Linux
stat -c "%a %n" <path to file or folder>
How to setup SSH key-based authentication
Want to log in to your Linux server without using your password AND be more secure? You can do this with SSH keys.
How to secure a Linux server from unauthorized SSH access
I’ve been doing a lot with reverse SSH tunnels for remote support lately, and wanted to make sure that my VPS was locked down. Here are the steps I took to m...
Normalizing uploaded image rotation in Java
EXIF (Exchangeable image file format) is a standard that specifies metadata for images. This allows digital cameras and phones to embed GPS coordinates, came...