💾Node Installation

Ojo Testnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Testnet	4	8GB	150GB

1) Auto_install script

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

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 06.03.23

cd $HOME && mkdir $HOME/go/bin/
git clone https://github.com/ojo-network/ojo
cd ojo
git checkout v0.1.2
make install

ojod version --long | grep -e version -e commit

• version: HEAD-ad5a2377134aa13d7d76575b95613cf8ed12d1e4

• commit: ad5a2377134aa13d7d76575b95613cf8ed12d1e4

Initiation

ojod init STAVR_guide --chain-id=ojo-devnet
ojod config chain-id ojo-devnet

Create/recover wallet

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

Download Genesis

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

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

• 6037d1c1a89110c024fc18143eafe33fee19671b9427a4d4ac9c701f7a3c9309

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.0uojo\"/;" ~/.ojo/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.ojo/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.ojo/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.ojo/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.ojo/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.ojo/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="100"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.ojo/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.ojo/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.ojo/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.ojo/config/app.toml

Indexer (optional)

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

Download addrbook

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

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Ojo Testnet

SNAP_RPC=https://ojo.rpc.t.stavr.tech:443
peers="[e-mail]:37096"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.ojo/config/config.toml
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 100)); \
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\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.ojo/config/config.toml
ojod tendermint unsafe-reset-all --home /root/.ojo
wget -O $HOME/.ojo/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Ojo/addrbook.json"
sed -i -e "s/^snapshot-interval *=.*/snapshot-interval = \"1500\"/" $HOME/.ojo/config/app.toml
sudo systemctl restart ojod && journalctl -fu ojod -o cat

SnapShot Testnet updated every 5 hours

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

Start

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

Create validator

ojod tx staking create-validator \
  --amount 1000000uojo \
  --from WalletName \
  --commission-max-change-rate "0.1" \
  --commission-max-rate "0.2" \
  --commission-rate "0.1" \
  --min-self-delegation "1" \
  --pubkey  $(ojod tendermint show-validator) \
  --moniker "STAVR_guide" \
  --chain-id ojo-devnet \
  --identity="" \
  --details="" \
  --website="" -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 ojod
sudo systemctl disable ojod
rm /etc/systemd/system/ojod.service
sudo systemctl daemon-reload
cd $HOME
rm -rf ojo
rm -rf .ojo
rm -rf $(which ojod)