# Launching CASPER TestNet 6.0 \[~1 HR\] **URL:** https://ghostforum.org/t/launching-casper-testnet-6-0-1-hr/15 **Category:** GHOST Chain **Tags:** guide **Created:** [February 23, 2026, 8:32am UTC](https://ghostforum.org/t/launching-casper-testnet-6-0-1-hr/15 "2026-02-23T08:32:56Z") **Posts on this page:** 1 **Page:** 1
### Author: ![Cosmos](https://ghostforum.org/user_avatar/ghostforum.org/cosmos/32/9_2.png) [@Cosmos](https://ghostforum.org/u/Cosmos) #### Post date: [February 23, 2026, 8:32am UTC](https://ghostforum.org/t/launching-casper-testnet-6-0-1-hr/15/1 "2026-02-23T08:32:57Z")
![You are currently viewing Launching CASPER TestNet 6.0 ~1 HR](https://ghostforum.org/uploads/default/original/1X/10535adf8358856709e508c7997a1d3ab26f6566.jpeg) ## Introduction Welcome to the **CASPER TestNet 6.0** Launch Guide. In CASPER TestNet 5.0, the system picked a random RPC endpoint from the list every 3-5 seconds to check the latest EVM block heights. In CASPER TestNet 6.0, all available RPCs would be checked to find the median reported block height. Any RPC showing a block too far from this median (more than 4 hours ahead or behind) would be temporarily excluded in this specific 3-5 second time request. All existing **CASPER TestNet 5.0** Full Nodes and Validators MUST update to **CASPER TestNet 6.0** to take advantage of new functionality. ## 1. Prerequisites ![Launching CASPER TestNet 6.0 Prerequisites](https://ghostforum.org/uploads/default/original/1X/eb7dd16f3d73f257b3b7a4cc2138bf20ebeaeb07.jpeg) Before you can proceed with launching you GHOST Node please make sure to go though the following guide: 1. [GHOST Chain Startup Guide](https://blog.ghostchain.io/ghost-chain-startup-guide/) – create the proper environment and install GHOST Chain. 2. [Testing Connectivity Guide](https://blog.ghostchain.io/ghost-chain-testing-connectivity/) – test whether or not you node can become a Boot Node and set proper firewall rules. ## 2. GHOST Chain Key Generation ![Generating Keys & Applying For Genesis Block Key Generation](https://ghostforum.org/uploads/default/original/1X/34253d92de129519b8df909fd5ad8a528ea17266.jpeg) Start with creating the following directory: ```auto sudo mkdir /etc/ghost ``` Get your username: ```auto whoami ``` Give the user permission to the directory and substitute {USERNAME} for the one from previous command: ```auto sudo chown {USERNAME} /etc/ghost ``` ### Generating Node Keys To generate the node key use the following command: ```auto ~/ghost/ghost-node/target/release/ghost key generate-node-key --bin --file=/etc/ghost/node-key ``` ![Generating Keys & Applying For Genesis Block Local Identity](https://ghostforum.org/uploads/default/original/1X/6b737c0840bc8162d6f5e434d0461c141886a953.png) ## 3. Launching CASPER TestNet 6.0 ![Launching CASPER TestNet 6.0 Launch GHOST Node](https://ghostforum.org/uploads/default/original/1X/6a8ef34c4c05ddfe452d34fa9b12c376d11f62e1.png) Go to `ghost-node` directory: ```auto cd ~/ghost/ghost-node ``` Create running `ghost-node` service that starts on system boot using `--unit-file` flag. And we must set up the `ghost-node` launch command by setting arguments using `--set-arguments` flag: ```auto ./scripts/starter.sh --unit-file --set-arguments ``` Only change the defaults if you are advanced otherwise press _Enter_ for the following prompts. If this is your first node simply press _Enter_ to proceed with the default. If this is your second node you should type a different port here, for example `30334`, and then you should open this port on your firewall and create a dedicated port forwarding rule on your router as specified in the [Testing Connectivity Guide](https://blog.ghostchain.io/ghost-chain-testing-connectivity/): ```auto specify p2p protocol TCP port (default: 30333): ``` To choose default options press _Enter_ here: ```auto specify JSON-RPC server TCP port: (default: 9945): specify the chain specification (default: /etc/ghost/casper.json): specify node's secret key file for p2p networking (default: /etc/ghost/node-key): ``` It is recommended that you give your node a Name you can recognize: ```auto specify name for the node (default: RANDOM_NAME): ``` ### Validator Node vs Full Node GHOST Chain consists of 3 types of nodes: - **Boot Node** – a type of node that other nodes can connect to in order to verify their legitimacy - **Validator Node** – a type of node that has $GHST Staking Capability - **Archival Node** – a type of node that will store the archive of the GHOST Chain ledger If you want to be a Full Node type `y`: ```auto disable validator mode? [y/N]: N ``` If you want to be a Validator Node type `N`: ```auto disable validator mode? [y/N]: N ``` ### Boot Node For the following prompt: ```auto list of bootnodes if any: ``` Paste one of the following **Boot Node** address: **IMPORTANT!!!** If you want your node to become a **GHOST Chain Boot Node** and to have a dedicated Boot Node Address listed in this guide please follow the [Create Custom Boot Node Address](https://blog.ghostchain.io/create-custom-boot-node-address/) guide and let us know in [GHOST Whales](https://t.me/realGhostChain/400534/400536). ## Boot Node Addresses ```auto /dns/bootnode69.chain.ghostchain.io/tcp/30334/p2p/12D3KooWF9SWxz9dmy6vfndQhoxqCa7PESaoFWEiF8Jkqh4xKDRf ``` ```auto /dns/bootnode70.chain.ghostchain.io/tcp/30333/p2p/12D3KooWP3h5dSdqcpvsCr7fp1jyfqDj291QDZ68a4gY6VQ8T1nW ``` ```auto /dns/ghostvision.mywire.org/tcp/30333/p2p/12D3KooWR5JJQ9mALPpnSxfZm5M23AByitSfxpei9ZDghU1NLNeW ``` ```auto /dns/ghostvision.mywire.org/tcp/30334/p2p/12D3KooWDs4i6VoK4dpwGSUVtZENzSmsbQk3tF63gYT745x7eAb2 ``` ```auto /dns/ghostvision.mywire.org/tcp/30335/p2p/12D3KooWJMiF7LUmDZ17NJRi9yHusHG4hrLGxoPv6sS7K2Vpn9P2 ``` ```auto /ip4/84.247.181.131/tcp/30333/p2p/12D3KooWJXBYA7cUQLLenEfT7hmCjBJ6fyikDy8YhNz4aLfwbBC8 ``` ```auto /ip4/38.242.230.101/tcp/30333/p2p/12D3KooWGduqTfbUvwwLb26A4dRPhG8EaJM3XRS8Snyj6SGffVms ``` ```auto /ip4/47.199.13.160/tcp/30333/p2p/12D3KooWQHiwqRokC3BmDrZ9LszxwFj7vjJ2adJDZPVQvRJXSA42 ``` ```auto /ip4/85.190.242.68/tcp/30334/p2p/12D3KooWEcJAQHs59gD3hDWU5UXxc9nNQcS6dPe3cnFtL8bBuEnw ``` ```auto /ip4/47.199.13.160/tcp/30334/p2p/12D3KooWB4758nu1pXuFiawKZ6R8ZRYzHS367afPnyJKScmLQ81x ``` ```auto /ip4/47.199.13.160/tcp/30335/p2p/12D3KooWRHyMrQDqQLbEtADi84FBtxn4gu7iu9VKtFPvhHLsoSsF ``` ```auto /ip4/47.199.13.160/tcp/30336/p2p/12D3KooWD6YmEzC44HDZ5pDbQ8MU2V2i3e9vq7ay1pE7QoAC37e2 ``` ```auto /ip4/47.199.13.160/tcp/30337/p2p/12D3KooWJbwRwvYxZCVtzw7hUq3CuA9LrzotgEcAT6zkc9sc81w4 ``` ```auto /dns/Fujisan1.mywire.org/tcp/30333/p2p/12D3KooWHZubqyhyU68wfWvhtXJCdSH6mJW8DPz45xK2zG6eXkHo ``` ```auto /dns/Fujisan2.mywire.org/tcp/30334/p2p/12D3KooWEKzDvyMu7JiJUhKmzXPAxp66eb5nFtEDqBPzepX3HK9p ``` ```auto /dns/Fujisan3.mywire.org/tcp/30335/p2p/12D3KooWHtCncs582VHGXPLqHy2aYe2cBY5qLt9U7RFwn2U2cQQT ``` ```auto /dns/Fujisan4.mywire.org/tcp/30336/p2p/12D3KooWFetfT6Ha8wxsvT4NhBjKvLdNDSWRSQQquXGmQBhxLRuV ``` Changing `unit-file` name is optional, otherwise press _Enter_: ```auto [?] name for the unit file (default: ghost-node.service) ``` **IF ERROR** and `[!] user ghost not found` pops up press `y`: ```auto [!] user ghost not found [?] do you want to create ghost user? (NOT RECOMMENDED: current root) [y/N]: [+] make ghost owner of /var/lib/ghost [+] prepare unit file for the ghost-node.service [+] reloading systemd because of updated unit file ``` DO NOT enable `ghost-node.service` press _Enter_: ```auto [?] do you want to start the ghost-node.service? [y/N]: ``` DO NOT start `ghost-node.service` press _Enter_: ```auto [?] do you want to enable the ghost-node.service? [y/N]: [+] execution finished ``` ## Rebuild GHOST Node Full rebuild of your node and make all dependencies global: ```auto ./scripts/starter.sh --hard-reset-i-know-what-im-doing ``` Recompiling will take some time! Check GHOST Node version, the output should be `ghost 0.8.5-cdc14c5ed12`: ```auto ghost --version ``` Check checksum the output should be `09a5b8de87e2ace61dc521c778b64dff59548ed2b191476218bc379e98978e1f`: ```auto sha256sum /etc/ghost/casper.json ``` To see the logs produced by your `ghost-node`: ```auto journalctl -f -u ghost-node ``` To exit `journalctl -f -u ghost-node` Press CTRL + C. Finally, go to [GHOST Telemetry](https://telemetry.ghostchain.io/) so see your node live on the map. Congratulations! You have an operational GHOST Node. ## Existing Full Nodes Migrating to TestNet 6.0 ![Launching CASPER TestNet 6.0 Migrating](https://ghostforum.org/uploads/default/original/1X/41d92b9ec7ebecab215977d8281914f7f1f42d54.jpeg) Only follow this section if you currently have a **GHOST TestNet 2.0** , **GHOST TestNet 3.0** , **GHOST Testnet 3.1** , **GHOST Testnet 4.0** Node, or **GHOST Testnet 5.1**. ### Updating GHOST Eye Go to `ghost-eye` directory: ```auto cd ~/ghost/ghost-eye ``` Update GHOST Eye: ```auto source update.sh ``` ### Updating CASPER TestNet Go to `ghost-node` directory: ```auto cd ~/ghost/ghost-node ``` Recompile your GHOST Node: ```auto ./scripts/starter.sh --hard-reset-i-know-what-im-doing ``` Check GHOST Node version, the output should be `ghost 0.8.5`: ```auto ghost --version ``` Check GHOST Node log: ```auto journalctl -f -u ghost-node ``` ## Troubleshooting ![Launching CASPER TestNet 6.0 Troubleshooting](https://ghostforum.org/uploads/default/original/1X/e2c5e2761d00bd9fd2195b72e6819938d4ddb465.jpeg) For future troubleshooting be aware of the following commands: ### Systemd-journal Permission Find your user: ```auto whoami ``` Replace `$USER` with your user: ```auto sudo usermod -aG systemd-journal $USER ``` Replace `$USER` with your user: ```auto sudo usermod -aG adm $USER ``` Create new group: ```auto newgrp systemd-journal ``` To see the logs produced by your `ghost-node`: ```auto journalctl -f -u ghost-node ``` ### Miscellaneous To soft reload the entire system: ```auto sudo systemctl daemon-reload ``` To stop `ghost-node`: ```auto sudo systemctl stop ghost-node ``` To restart `ghost-node`: ```auto sudo systemctl restart ghost-node ``` To see the logs produced by your `ghost-node`: ```auto journalctl -f -u ghost-node ``` ## Changelog All the commit changelogs for GHOST Chain can be [found here](https://git.ghostchain.io/ghostchain/ghost-node/commits/branch/main). ## What is GHOST Chain? **GHOST Chain** is a decentralized EVM bridge with a privacy layer providing a much needed cross-chain interoperability and anonimity in the web3 space. **[Become Validator](https://validator.ghostchain.io/)** | **[GHOST Chain](https://chain.ghostchain.io/)** | **[ghostDAO Litepaper](https://ghostchain.io/ghostdao_litepaper/)** Tags: [$CSPR](https://blog.ghostchain.io/tag/cspr/), [5.0](https://blog.ghostchain.io/tag/5-0/), [casper](https://blog.ghostchain.io/tag/casper/), [CASPER Testnet](https://blog.ghostchain.io/tag/casper-testnet/), [ghost](https://blog.ghostchain.io/tag/ghost/), [Launching CASPER TestNet 6.0](https://blog.ghostchain.io/tag/launching-casper-testnet-6-0/)