💾Node Installation

Empeiria Testnet guide

EXPLORER

  • Minimum hardware requirements:

Node TypeCPURAMStorage

Testnet

4

8GB

150GB

1) Auto_install script

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

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 23.08.24

cd $HOME && mkdir -p go/bin/
curl -LO https://github.com/empe-io/empe-chain-releases/raw/master/v0.2.2/emped_v0.2.2_linux_amd64.tar.gz
tar -xvf emped_v0.2.2_linux_amd64.tar.gz
rm -rf emped_v0.2.2_linux_amd64.tar.gz
chmod +x emped
sudo mv emped ~/go/bin

emped version --long | grep -e version -e commit

  • version: 0.2.2

  • commit: 89a4061fa99a171bb2a15a5c23f0c61749511abd

Initiation

emped init STAVR_guide --chain-id empe-testnet-2

Create/recover wallet

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

Download Genesis

wget -O $HOME/.empe-chain/config/genesis.json "https://raw.githubusercontent.com/111STAVR111/props/main/Empeiria/genesis.json"

sha256sum $HOME/.empe-chain/config/genesis.json

  • 2aabbc5e3cabbd0f2cdb9a442dc476397c05b624f42ee23e832fdf1c48f60c91

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.0025uempe\"/;" ~/.empe-chain/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.empe-chain/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.empe-chain/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.empe-chain/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.empe-chain/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.empe-chain/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\"/" $HOME/.empe-chain/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.empe-chain/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.empe-chain/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.empe-chain/config/app.toml

Indexer (optional)

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

Download addrbook

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

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Empeiria Testnet

SNAP_RPC=https://empe.rpc.t.stavr.tech:443
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
TRUST_HASH=$(curl -s "$SNAP_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\"$SNAP_RPC,$SNAP_RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"|" $HOME/.empe-chain/config/config.toml
emped tendermint unsafe-reset-all --home $HOME/.empe-chain
wget -O $HOME/.empe-chain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Empeiria/addrbook.json"
sudo systemctl restart emped && journalctl -fu emped -o cat

SnapShot Testnet updated every 5 hours

cd $HOME
snap install lz4
sudo systemctl stop emped
cp $HOME/.empe-chain/data/priv_validator_state.json $HOME/.empe-chain/priv_validator_state.json.backup
rm -rf $HOME/.empe-chain/data
curl -o - -L https://empe.snapshot-t.stavr.tech/emper-snap.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.empe-chain --strip-components 2
mv $HOME/.empe-chain/priv_validator_state.json.backup $HOME/.empe-chain/data/priv_validator_state.json
wget -O $HOME/.empe-chain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Empeiria/addrbook.json"
sudo systemctl restart emped && journalctl -fu emped -o cat

Start

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

Create validator

emped tx staking create-validator \
  --amount 1000000uempe \
  --commission-max-change-rate "0.2" \
  --commission-max-rate "0.50" \
  --commission-rate "0.1" \
  --min-self-delegation "1" \
  --pubkey=$(emped tendermint show-validator) \
  --moniker 'STAVR_guide' \
  --website "" \
  --identity "" \
  --details "" \
  --chain-id empe-testnet-2 \
  --from Wallet_Name -y

🧩Services and Tools🧩

Monitoring

You can set up your node status alarm here - Monitoring

Security

You can create secure management of your wallet and your node by following this links.

TMKMS Wallet Security

Delete node

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