<h1> Presearch </h1> <h2> Table of Contents </h2> - [Introduction](#introduction) - [Prerequisites](#prerequisites) - [Deploy a Presearch Node](#deploy-a-presearch-node) - [Migrate an Existing Presearch Node to the TFGrid](#migrate-an-existing-presearch-node-to-the-tfgrid) - [Verify if a 3Node Already Runs a Presearch Workload](#verify-if-a-3node-already-runs-a-presearch-workload) - [Learn More About Presearch](#learn-more-about-presearch) - [Questions and Feedback](#questions-and-feedback) *** ## Introduction [Presearch](https://www.presearch.io/) is a community-powered, decentralized search engine that provides better results while protecting your privacy and rewarding you when you search. This weblet deploys a Presearch node. Presearch Nodes are used to process user search requests, and node operators earn Presearch PRE tokens for joining and supporting the network. ## Prerequisites - Make sure you have a [wallet](wallet_connector.md) - From the sidebar click on **Applications** - Click on **Presearch** ## Deploy a Presearch Node  - Enter an instance name. - You need to sign up on Presearch in order to get your *Presearch Registration Code*. To sign up, go to the [Presearch](https://presearch.com) website, create your account and then head to your [dashboard](https://nodes.presearch.com/dashboard) to find your registration code. - Choose the network - `Public IPv4` flag gives the virtual machine a Public IPv4 - `Planetary Network` to connect the Virtual Machine to Planetary network - `Dedicated` flag to retrieve only dedeicated nodes - `Certified` flag to retrieve only certified nodes - Choose the location of the node - `Region` - `Country` - `Farm Name` - Choose the node to deploy the Virtual Machine on > Or you can select a specific node with manual selection. ## Migrate an Existing Presearch Node to the TFGrid Now what if you already have a Presearch node deployed somewhere and would like to migrate to Threefold? We got you! All you need to do is: 1. Login to your old server that has your node via SSH. 2. Run `docker cp presearch-node:/app/node/.keys presearch-node-keys` in order to generate your key-pair. 3. Head to the *Restore* tab in the Presearch weblet and paste your key-pair in the fields below and you'll be good to deploy!  After that is done you can see a list of all of your deployed instances  Now head to your [dashboard](https://nodes.presearch.com/dashboard) again and scroll down to **Current Nodes**, you'll see your newly created node up and connected!  ## Verify if a 3Node Already Runs a Presearch Workload You can do the following to verify if a Presearch workload deployed without a public IP address already has a Presearch workload running. Note that you will first need to deploy a Presearch workload on the 3Node. After deployment, you can SSH into the VM and do the verification. * SSH into the VM running the Presearch workload * ``` ssh root@<VM_IP_Address> ``` * List running containers and identity the Presearch container * ``` docker ps ``` * Print the logs of the Presearch container * ``` docker logs <Presearch_container_name> ``` * If there is no other Presearch workload running on the 3Node, you will see a similar output: * > 2023-10-16T12:18:33.780Z info: Node is listening for searches... * If there is another Presearch workload running on the 3Node, you will see a similar output: * > 2023-10-16T12:24:00.346Z error: Duplicate IP: This IP Address is already running another Node. Only one Node is permitted per IP Address. * If there is another Presearch workload running, you will need to either deploy on another 3Node with a public IP or deploy on another node without a public IP that isn't running a Presearch deployment. ## Learn More About Presearch To learn more about Presearch, you can read the [Presearch documentation](https://docs.presearch.io/). ## Questions and Feedback If you have any questions, you can ask the ThreeFold community for help on the [ThreeFold Forum](http://forum.threefold.io/) or on the [ThreeFold Grid Tester Community](https://t.me/threefoldtesting) on Telegram.