Update Wordpress URL in MySQL
A quick and old-fashioned way to update the URL from your WordPress website to a new one. UPDATE wp_posts SET post_content = REPLACE(post_content, 'domain.com', 'newdomain.com'); …
Create swap file on CentOS
I needed swap for a t2.micro ec2 machine because it was dying almost twice a week, so I created a swap file for this. Run as root or the following commands: fallocate -l 1G /swapfile chmod 600 …