💾Node Installation

Band Mainnet guide

  • Minimum hardware requirements:

Node TypeCPURAMStorage

Mainnet

8

16GB

250GB

1) Auto_install script

wget -O bandm https://raw.githubusercontent.com/111STAVR111/props/main/Band/bandm && chmod +x bandm && ./bandm

2) Manual installation

Preparing the server

sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq chrony liblz4-tool -y

GO 1.21.6

ver="1.21.6"
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$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Build 14.09.23

cd $HOME && mkdir -p $HOME/go/bin/
git clone https://github.com/bandprotocol/chain band
cd band
git checkout v2.5.4
make install

bandd version --long | head

  • version: 2.5.4

  • commit: e6548bbf4793829bb8e711e5ed89ba4afc710ded

Initiation

bandd init STAVR_guide --chain-id laozi-mainnet
bandd config chain-id laozi-mainnet

Create/recover wallet

bandd keys add <walletname>
           OR
bandd keys add <walletname> --recover

Download Genesis

wget -O genesis.json https://snapshots.polkachu.com/genesis/band/genesis.json --inet4-only
mv genesis.json ~/.band/config

sha256sum $HOME/.band/config/genesis.json

  • c776e2a5fac6ce3214845db52da6beef95fada49717eac55b0b81ad3767db7de

Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0uband\"/;" ~/.band/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.band/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.band/config/config.toml
seeds="ade4d8bc8cbe014af6ebdf3cb7b1e9ad36f412c0@seeds.polkachu.com:22956"
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.band/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.band/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.band/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.band/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.band/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.band/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.band/config/app.toml

Indexer (optional)

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.band/config/config.toml

Download addrbook

wget -O $HOME/.band/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Band/addrbook.json"

Create a service file

sudo tee /etc/systemd/system/bandd.service > /dev/null <<EOF
[Unit]
Description=band
After=network-online.target

[Service]
User=$USER
ExecStart=$(which bandd) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync Band Mainnet

RPC=https://band.rpc.m.stavr.tech:443
peers=0bfd5d7355ebf38e35af619ae0cab70aa21675a5@band-m.peer.stavr.tech:11026
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.band/config/config.toml
LATEST_HEIGHT=$(curl -s $RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1500)); \
TRUST_HASH=$(curl -s "$RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$RPC,$RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.band/config/config.toml
sudo systemctl stop bandd && bandd tendermint unsafe-reset-all --keep-addr-book
curl -o - -L http://band.files.stavr.tech:1103/files-band.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.band --strip-components 2
sudo systemctl restart bandd && journalctl -fu bandd -o cat

SnapShot Mainnet updated every 5 hours

cd $HOME
apt install lz4
sudo systemctl stop bandd
cp $HOME/.band/data/priv_validator_state.json $HOME/.band/priv_validator_state.json.backup
rm -rf $HOME/.band/data
curl -o - -L http://band.snapshot.stavr.tech:1022/band/band-snap.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.band --strip-components 2
curl -o - -L http://band.files.stavr.tech:1103/files-band.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.band --strip-components 2
mv $HOME/.band/priv_validator_state.json.backup $HOME/.band/data/priv_validator_state.json
wget -O $HOME/.band/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Band/addrbook.json"
sudo systemctl restart bandd && journalctl -fu bandd -o cat

Start

sudo systemctl daemon-reload
sudo systemctl enable bandd
sudo systemctl restart bandd && journalctl -fu bandd -o cat

Create validator

bandd tx staking create-validator \
  --amount=1000000uband \
  --pubkey=$(bandd tendermint show-validator) \
  --moniker="STAVR_Guide" \
  --identity="" \
  --details="" \
  --website="" \
  --chain-id="laozi-mainnet" \
  --commission-rate="0.10" \
  --commission-max-rate="0.20" \
  --commission-max-change-rate="0.2" \
  --min-self-delegation="1" \
  --from=YourWallet -y

Delete node

sudo systemctl stop bandd
sudo systemctl disable bandd
rm /etc/systemd/system/bandd.service
sudo systemctl daemon-reload
cd $HOME
rm -rf band
rm -rf .band
rm -rf $(which bandd)

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