Linux, Code, Cloud Computing, DevOps
This post discusses how to execute shell commands via PHP. The ability to execute shell commands is a powerful feature and should be used carefully. As such, not all hosting …
How to execute shell commands via PHP Read More
Apart from running web applications, PHP can execute commands via a shell. But testing your shell script can be tricky, especially when running it as a different user. This post …
How to test your PHP code as the www-data user Read More
I encountered a “cannot lock /etc/passwd; try again later” issue whilst trying to create a new user on my Ubuntu 18.x server. The root cause eludes me, but I did find …
Solved: cannot lock /etc/passwd; try again later Read More
The Vi text editor can be intimidating. But you, too, can survive Vi using this cheat sheet. While Vi and Vim isn’t technically the same thing, these commands will work …
Basic Vi (Vim) editor commands Read More
This guide will show you how to install AWS EFS using EFS-Helper on RHEL. Additionally, you will see how to use the AWS EC2 user data field to auto-configure your …
How to install AWS EFS on RHEL (Updated 2021) Read More
Let’s see how you can fix your “PKIX path building failed” error. This error occurs when you try to connect via HTTPS between two applications via a self-signed certificate. The …
How to fix your “PKIX path building failed” error Read More