Ubuntu

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

While the default version on Ubuntu 20.04 for Python is 3.8, I've added Python 3.11.5 (latest version).

Errors

GPTSimpleVectorIndex is deprecated

Attempting to run python3.11 model-ai.py and I'm seeing the following response

Ubuntu 20.04 comes with Python 3.8 installed.  If you run the update script, you'll be informed that the latest version of Python is running.  But here is the kicker, the actual latest version is currently 3.11.6... see https://www.python.org/downloads/source/

Use the following commands to download the Python 3.11.6 source code

Logging into the server, and there are packages to be updated.  You know the standard Ubuntu / Linux response

5 updates can be applied immediately.
To see these additional updates run: apt list --upgradable

3 additional security updates can be applied with ESM Apps.
Learn more about enabling ESM Apps service at https://ubuntu.com/esm

Followed by the action

Update Ubuntu 20.04

To begin update the server using the command

sudo apt update && sudo apt upgrade -y

For more details about this process see How To Update All Packages Linux.

PHP version

Check the current PHP version using

At first, I attempted

echo 1 > /proc/sys/vm/drop_caches

Response

-bash: /proc/sys/vm/drop_caches: Permission denied

Adding sudo in front of the command was met with the same result.  What about if I execute the shell as root

sudo sh -c 'echo 1 > /proc/sys/vm/drop_caches'

Success.  Caches cleared.

Error when running ckan.ini init

from flask_debugtoolbar import DebugToolbarExtension
ModuleNotFoundError: No module named 'flask_debugtoolbar'

Activate your CKAN virtual environment, for example:

. /usr/lib/ckan/default/bin/activate

Then check your location is

cd /usr/lib/ckan/default/src

My goal was to install a requirements.txt file using pip.  First, I wanted to cross-check if I had pip installed on Ubuntu.  Easy to do by running a simple command:

pip -V

However, I was receiving the following response

In this article I'll walk through the steps I went through to install Solr on Ubuntu.

Step 1: Java

Check if Java is installed on your server:

java -version

Not there - then Java is the first step for you to set up for Solr.  JAVA SE 8 or Later is required to run Apache Solr 8.  Utilisation taking after order to check in the event that you have Java introduced as of now on your system.

Focusing on the ckan.ini file (/etc/ckan/default/ckan.ini).  When I run the commands to recreate the database tables for CKAN:

cd /usr/lib/ckan/default/src/ckan
ckan -c /etc/ckan/default/ckan.ini db init

The response I'm getting is: