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Andrew Fletcher
On a server directory with over 100,000 PDF files, I needed to verify the existence of specific documents. Whether there are a few hundred or whatever the number of files, this article explores the practical use of command-line tools to quickly ascertain whether a file is present. In the area of server management or application development, especially on systems like Ubuntu equipped with Nginx, it's crucial to perform routine checks to ensure that all necessary files are in place. Whether it's...
Andrew Fletcher
Recently, I encountered an issue where my local Docker environment refused to...
Andrew Fletcher
To resolve the CVE-2022-48624 vulnerability on Ubuntu using Nginx, it's crucial...
Andrew Fletcher
In many terminal text editors, you use find command as reference in Terminal...
Andrew Fletcher
In an environment that is running Ubuntu 20.02 Nginx Solr   The default...
Andrew Fletcher
Docker containers list To view a list of Docker containers that are currently running, you can use the docker ps command. Open your terminal or command prompt and run the following command: docker psThis command will display a list of running containers, showing information like the container ID, image name, status, ports, and more. If you want to see all containers, including those that are not currently running, you can use the following command: docker ps -aThe -a option shows all containers,...
Andrew Fletcher
If the Android app icon is not changing from the default icon (in my situation...
Andrew Fletcher
I'm receiving an issue with a previous release on Google...
Andrew Fletcher
The "keystore password was incorrect" error in keytool indicates that the...
Andrew Fletcher
How to generate a new private key and submit it to Google Play for signing your...
Andrew Fletcher
Adding an SSL wildcard certificate to an Ubuntu server involves several steps.  A wildcard certificate can secure subdomains of a domain with a single certificate. Here's a general outline of the process: I'll be using an existing wildcard certificate. sudo apt update && sudo apt upgrade -y  Copy the certificate sudo cp /etc/letsencrypt/live/your_domain/fullchain.pem /etc/ssl/your_domain.crt sudo cp /etc/letsencrypt/live/your_domain/privkey.pem /etc/ssl/your_domain.keyAdd the...
Andrew Fletcher
When logging into Ubuntu server you will see a response similar to Welcome to...
Andrew Fletcher
Forcing https and www or non-www is a process that I was a custom to through...
Andrew Fletcher
Loading the code in a platform - in this article, I'll be focusing on Android...
Andrew Fletcher
The error > Task :app:packageDebug FAILED Execution failed for task...