Installation

Manual Installation

Official DocumentationRecommended Hardware: 6 Cores, 8GB RAM, 400GB of storage (NVME)

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

Node Name= Wallet= Port=

# install go, if needed
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="36"" >> $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 $HOME/go/bin
rm -rf crossfi-node_0.3.0-prebuild3_linux_amd64.tar.gz $HOME/bin

# config and init app
crossfid config node tcp://localhost:${CROSSFI_PORT}657
crossfid config keyring-backend os
crossfid config chain-id crossfi-evm-testnet-1
rm -rf testnet ~/.mineplex-chain
git clone https://github.com/crossfichain/testnet.git
mv $HOME/testnet/ $HOME/.mineplex-chain/

# download genesis and addrbook
wget -O $HOME/.mineplex-chain/config/genesis.json https://testnet-files.itrocket.net/crossfi/genesis.json
wget -O $HOME/.mineplex-chain/config/addrbook.json https://testnet-files.itrocket.net/crossfi/addrbook.json

# set seeds and peers
SEEDS="[e-mail]:36656"
PEERS="[e-mail]:36656,[email protected]:44656,[email protected]:56156"
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\"%;
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
if curl -s --head curl https://testnet-files.itrocket.net/crossfi/snap_crossfi.tar.lz4 | head -n 1 | grep "200" > /dev/null; then
  curl https://testnet-files.itrocket.net/crossfi/snap_crossfi.tar.lz4 | lz4 -dc - | tar -xf - -C $HOME/.mineplex-chain
    else
  echo no have snap
fi

# enable and start service
sudo systemctl daemon-reload
sudo systemctl enable crossfid
sudo systemctl restart crossfid && sudo journalctl -u crossfid -f

Automatic Installation

pruning: custom: 100/0/10 | indexer:

source <(curl -s https://itrocket.net/api/testnet/crossfi/autoinstall/)

Create wallet

# to create a new wallet, use the following command. don’t forget to save the mnemonic
crossfid keys add $WALLET

# to restore exexuting wallet, use the following command
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, once your node is fully synced, the output from above will print "false"
crossfid status 2>&1 | jq .SyncInfo

# before creating a validator, you need to fund your wallet and check balance
crossfid query bank balances $WALLET_ADDRESS

Create validator

MonikerIdentityDetailsAmount, mpxCommission rateCommission max rateCommission max change rate

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 "test" \
--identity "" \
--details "I love blockchain ❤️" \
--chain-id crossfi-evm-testnet-1 \
--gas auto --gas-adjustment 1.5 --gas-prices 10000000000000mpx \
-y

Monitoring

If you want to have set up a monitoring and alert system use our cosmos nodes monitoring guide with tenderduty

Security

To protect you keys please don`t share your privkey, mnemonic and follow a basic security rules

Set up ssh keys for authentication

You can use this guide to configure ssh authentication and disable password authentication on your server

Firewall security

Set the default to allow outgoing connections, deny all incoming, allow ssh and node p2p port

sudo ufw default allow outgoing 
sudo ufw default deny incoming 
sudo ufw allow ssh/tcp 
sudo ufw allow ${CROSSFI_PORT}656/tcp
sudo ufw enable

Delete node

sudo systemctl stop crossfid
sudo systemctl disable crossfid
sudo rm -rf /etc/systemd/system/crossfid.service
sudo rm $(which crossfid)
sudo rm -rf $HOME/.mineplex-chain
sed -i "/CROSSFI_/d" $HOME/.bash_profile