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--- lab:fah_removal [2023/05/01 15:17] – [Optional] user
+++ lab:fah_removal [2023/05/06 23:02] (current) – replaced user
@@ Line 1: / Line 1: @@
-====== FAH Removal ======
-In our previous step we [[fah_installation|set up FAH]] on our [[Stack of NUCs]].
-Now we are going to disable the service and uninstall it. In the last step there was an optional step to "finish folding". Bonus points for doing this.
-Purpose:
-  * Demonstrate stopping and removing an installed service workload
-====== Step 1 - Connect to the Ansible Control Node ======
-From [[stack - nuc 1|NUC 1]], log in to the Ansible control node, [[stack - nuc 2|NUC 2]].
-====== Step 2 - Create the Playbook ======
-Create the file /home/ansible/my-project/fah/removefah.yml
-<file yaml removefah.yml>
----
-- hosts: all
-  become: true
-  become_user: root
-  tasks:
-    - name: Stop and disable FAHClient.service
-      ansible.builtin.service:
-        name: FAHClient.service
-        state: stopped
-        enabled: false
-    - name: Remove fahclient package
-      apt:
-        name: fahclient
-        state: absent
-        clean: true
-        purge: true
-    - name: Reboot
-      reboot:
-</file>
-====== Step 3 - Test the Playbook ======
-''ansible-playbook removefah.yml''
-====== Next Step ======
-Now that we have removed the CPU-hungry FAH service, we go next to [[Install Kubernetes|installing Kubernetes]].
-====== Optional ======
-Cyber security students may want to deploy hashtopolis in the Lab. This deploys a distributed hashcat cluster for brute forcing password hashes.
-===== Hashtopolis =====
-References:
-  * [[https://jakewnuk.com/posts/hashtopolis-infrastructure/]]
-  * [[https://github.com/peterezzo/hashtopolis-docker]]
-There are two pieces to set up:
-  * server - central server distributes the keyspace of a task, aggregates jobs, and collects results in MySQL database
-    * communicates over HTTPS with client machines
-    * passes over files, binaries and task commands
-  * clients - acts on the commands, executes the hash cracking application, and report "founds" to the server
-==== Start a folder for hashtopolis ====
-  - Log in to the Ansible control node (NUC 2)
-  - Create directory ''/home/ansible/my-project/hashtopolis'' change to it
-    * ''mkdir hashtopolis''
-    * ''cd hashtopolis''
-  - Create the inventory, putting one of the worker nodes in the [server] section and the rest in the [clients] section
-    * ''/home/ansible/my-project/hashtopolis/inventory''
-    * <file yaml inventory>
-[all:vars]
-ansible_python_interpreter=/usr/bin/python3
-ansible_user='ansible'
-ansible_become=true
-ansible_become_method=sudo
-[server]
-[clients]
-</file>
-  - Create the ansible.cfg file
-    * ''/home/ansible/my-project/hashtopolis/ansible.cfg''
-    * <file yaml ansible.cfg>
-[defaults]
-inventory = inventory
-</file>
-exit
-==== Server Setup ====
-Server runs a LAMP stack
-<code bash>
-# installing core packages
-sudo apt update && sudo apt upgrade -y
-sudo apt install apache2 -y
-sudo apt install libapache2-mod-php php-mysql php php-gd php-pear php-curl -y
-sudo apt install git -y
-sudo apt install phpmyadmin -y
-# depending on your OS you may find the package listed as either one
-sudo apt install mysql-server -y
-sudo apt install mariadb -y
-# secure the default mysql install
-mysql_secure_installation
-# clone down the repo
-git clone https://github.com/s3inlc/hashtopolis.git
-sudo mkdir /var/www/hashtopolis
-sudo cp -r hashtopolis/src/* /var/www/hashtopolis
-sudo chown -R www-data:www-data /var/www/hashtopolis
-# create mysql database and set a password
-sudo mysql -uroot -e "create database hashtopolis;"
-sudo mysql -uroot -e "GRANT ALL ON hashtopolis.* TO 'hashtopolis'@'localhost' identified by 'PASSWORD';"
-sudo mysql -uroot -e "flush privileges;"
-</code>
-additional configuration required
-==== Agent Setup ====
-<code>
-# ensure the machine is up to date and install python packages
-sudo apt update
-sudo apt -y full-upgrade -y
-pip3 install requests
-pip3 install psutil
-# install nvidia and cuda drivers
-sudo apt install -y nvidia-driver nvidia-cuda-toolkit
-# verify install (should both show nvidia drivers)
-nvidia-smi
-lspci | grep -i vga
-# verify with hashcat
-hashcat -I
-# fetch the agent file from the server
-curl http://DOMAIN.TLD/agents.php?download=1 -o agent.zip
-python3 agent.zip
-</code>