# CrossFi Node Setup Guide

By [Nofena99](https://paragraph.com/@nofena99) · 2024-08-15

---

### **Recommended Hardware:**

*   CPU: 4 Cores
    
*   RAM: 8GB
    
*   Storage: 200GB NVME SSD
    

**Installation**
================

### Install Dependencies

    sudo apt update && sudo apt upgrade -y
    sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y
    

### Install Go

    cd $HOME
    VER="1.21.3"
    wget "<https://golang.org/dl/go$VER.linux-amd64.tar.gz>"
    sudo rm -rf /usr/local/go
    sudo tar -C /usr/local -xzf "go$VER.linux-amd64.tar.gz"
    rm "go$VER.linux-amd64.tar.gz"
    [ ! -f ~/.bash_profile ] && touch ~/.bash_profile
    echo "export PATH=$PATH:/usr/local/go/bin:~/go/bin" >> ~/.bash_profile
    source $HOME/.bash_profile
    [ ! -d ~/go/bin ] && mkdir -p ~/go/bin
    

### Set Vars

    echo "export WALLET="wallet"" >> $HOME/.bash_profile
    echo "export MONIKER="test"" >> $HOME/.bash_profile
    echo "export CROSSFI_CHAIN_ID="crossfi-evm-testnet-1"" >> $HOME/.bash_profile
    echo "export CROSSFI_PORT="18"" >> $HOME/.bash_profile
    source $HOME/.bash_profile
    

### Download Binary

    cd $HOME
    wget <https://github.com/crossfichain/crossfi-node/releases/download/v0.3.0-prebuild3/crossfi-node_0.3.0-prebuild3_linux_amd64.tar.gz> && tar -xf crossfi-node_0.3.0-prebuild3_linux_amd64.tar.gz
    tar -xvf crossfi-node_0.3.0-prebuild3_linux_amd64.tar.gz
    chmod +x $HOME/bin/crossfid
    mv $HOME/bin/crossfid /usr/local/bin/
    rm -rf crossfi-node_0.3.0-prebuild3_linux_amd64.tar.gz $HOME/bin
    

### Config and Init App

    crossfid init $MONIKER
    sed -i -e "s|^node *=.*|node = \\"tcp://localhost:${CROSSFI_PORT}657\\"|" $HOME/.mineplex-chain/config/client.toml
    

### Download Genesis and AddrBook

    wget -O $HOME/.mineplex-chain/config/genesis.json <https://snapshot.nofena99.org/crossfi-testnet/genesis.json>
    wget -O $HOME/.mineplex-chain/config/addrbook.json <https://snapshot.nofena99.org/crossfi-testnet/addrbook.json>
    

### Set Seeds and Peers

    SEEDS=""
    $PEERS"de1e9221a35de41e08653ef0aca405c1f2ad500e@crossfi-testnet-peer.nofena99.org:19656"
    sed -i -e "s/^seeds *=.*/seeds = \\"$SEEDS\\"/; s/^persistent_peers *=.*/persistent_peers = \\"$PEERS\\"/" $HOME/.mineplex-chain/config/config.toml
    

### Set Custom Ports In app.toml

    sed -i.bak -e "s|:1317|:${CROSSFI_PORT}317|g;
    s|:8080|:${CROSSFI_PORT}080|g;
    s|:9090|:${CROSSFI_PORT}090|g;
    s|:9091|:${CROSSFI_PORT}091|g;
    s|:8545|:${CROSSFI_PORT}545|g;
    s|:8546|:${CROSSFI_PORT}546|g;
    s|:6065|:${CROSSFI_PORT}065|g" $HOME/.mineplex-chain/config/app.toml
    

### Set Custom Ports in config.toml File

    sed -i.bak -e "s|:26658|:${CROSSFI_PORT}658|g;
    s|:26657|:${CROSSFI_PORT}657|g;
    s|:6060|:${CROSSFI_PORT}060|g;
    s|:26656|:${CROSSFI_PORT}656|g;
    s|^external_address = \\"\\"|external_address = \\"$(wget -qO- eth0.me):${CROSSFI_PORT}656\\"|g;
    s|:26660|:${CROSSFI_PORT}660|g" $HOME/.mineplex-chain/config/config.toml
    

### Config Pruning

    sed -i -e "s/^pruning *=.*/pruning = \\"custom\\"/" $HOME/.mineplex-chain/config/app.toml
    sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \\"100\\"/" $HOME/.mineplex-chain/config/app.toml
    sed -i -e "s/^pruning-interval *=.*/pruning-interval = \\"50\\"/" $HOME/.mineplex-chain/config/app.toml
    

### Set Minimum Gas Price, Enable Prometheus and Disable Indexing

    sed -i 's|minimum-gas-prices =.*|minimum-gas-prices = "10000000000000mpx"|g' $HOME/.mineplex-chain/config/app.toml
    sed -i -e "s/prometheus = false/prometheus = true/" $HOME/.mineplex-chain/config/config.toml
    sed -i -e "s/^indexer *=.*/indexer = \\"null\\"/" $HOME/.mineplex-chain/config/config.toml
    

### Create Service File

    sudo tee /etc/systemd/system/crossfid.service > /dev/null <<EOF
    [Unit]
    Description=Crossfi node
    After=network-online.target
    [Service]
    User=$USER
    WorkingDirectory=$HOME/.mineplex-chain
    ExecStart=$(which crossfid) start --home $HOME/.mineplex-chain
    Restart=on-failure
    RestartSec=5
    LimitNOFILE=65535
    [Install]
    WantedBy=multi-user.target
    EOF
    

### Reset and Download Snapshot

    
    crossfid tendermint unsafe-reset-all --home $HOME/.mineplex-chain
    

### Enable and Start Service

    sudo systemctl daemon-reload
    sudo systemctl enable crossfid
    sudo systemctl restart crossfid && sudo journalctl -u crossfid -f
    

**Wallet**
==========

### **Create a Wallet**

    crossfid keys add $WALLET
    

### **Restore Keys You Have Created**

    crossfid keys add $WALLET --recover
    

### **Save Wallet and Validator Address**

    WALLET_ADDRESS=$(crossfid keys show $WALLET -a)
    VALOPER_ADDRESS=$(crossfid keys show $WALLET --bech val -a)
    echo "export WALLET_ADDRESS="$WALLET_ADDRESS >> $HOME/.bash_profile
    echo "export VALOPER_ADDRESS="$VALOPER_ADDRESS >> $HOME/.bash_profile
    source $HOME/.bash_profile
    

### **Check Sync Status**

If your node is fully synced, the output from above will print `false`

    crossfid status 2>&1 | jq
    

### **Check wallet has been funded sucessfully**

    crossfid query bank balances $WALLET_ADDRESS
    

**Validator**
=============

To create a validator at airchain node, you should import the data of your validator to the **validator.json** file

    crossfid tx staking create-validator \\
    --amount 1000000mpx \\
    --from $WALLET \\
    --commission-rate 0.1 \\
    --commission-max-rate 0.2 \\
    --commission-max-change-rate 0.01 \\
    --min-self-delegation 1 \\
    --pubkey $(crossfid tendermint show-validator) \\
    --moniker $MONIKER \\
    --identity "" \\
    --website "" \\
    --details "a validator blockchain" \\
    --chain-id crossfi-evm-testnet-1 \\
    --gas auto \\
    --gas-adjustment 1.5 \\
    --gas-prices 10000000000000mpx \\
    -y

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*Originally published on [Nofena99](https://paragraph.com/@nofena99/crossfi-node-setup-guide)*