💾Node Installation

Og Testnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Testnet	4	8GB	150GB

1) Auto_install script

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

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 17.10.24

cd $HOME && mkdir -p go/bin/
wget -O 0gchaind https://github.com/0glabs/0g-chain/releases/download/v0.4.0/0gchaind-linux-v0.4.0
chmod +x 0gchaind
mv 0gchaind $HOME/go/bin/

0gchaind version --long | grep -e version -e commit

• version: 0.4.0

• commit: 840deea660500f3948300ea3e9a1cba878ed682b

Initiation

0gchaind init STAVR_guide --chain-id=zgtendermint_16600-2
0gchaind config chain-id zgtendermint_16600-2

Create/recover wallet

0gchaind keys add <walletname>
           OR
0gchaind keys add <walletname> --recover

Download Genesis

wget -O $HOME/.0gchain/config/genesis.json "https://raw.githubusercontent.com/111STAVR111/props/main/Og/genesis.json"

sha256sum $HOME/.0gchain/config/genesis.json

• cc862760abd4cebb91935e7506a745a251074cdd44148a5c9ae4ee7539dd8d0a

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.025ua0gi\"/;" ~/.0gchain/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.0gchain/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.0gchain/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.0gchain/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.0gchain/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.0gchain/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\"/" $HOME/.0gchain/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.0gchain/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.0gchain/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.0gchain/config/app.toml

Indexer (optional)

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.0gchain/config/config.toml

Download addrbook

wget -O $HOME/.0gchain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Og/addrbook.json"

Create a service file

sudo tee /etc/systemd/system/0gchaind.service > /dev/null <<EOF
[Unit]
Description=0gchaind
After=network-online.target

[Service]
User=$USER
ExecStart=$(which 0gchaind) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync Og Testnet

SNAP_RPC=https://og.rpc.t.stavr.tech:443
peers="[e-mail]:34106"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.0gchain/config/config.toml
LATEST_HEIGHT=$(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\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.0gchain/config/config.toml
0gchaind tendermint unsafe-reset-all --home $HOME/.0gchain
wget -O $HOME/.0gchain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Og/addrbook.json"
systemctl restart 0gchaind && journalctl -fu 0gchaind -o cat

SnapShot Testnet updated every 5 hours

cd $HOME
snap install lz4
sudo systemctl stop 0gchaind 
cp $HOME/.0gchain/data/priv_validator_state.json $HOME/.0gchain/priv_validator_state.json.backup
rm -rf $HOME/.0gchain/data
curl -o - -L https://og.snapshot.stavr.tech/og-snap.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.0gchain --strip-components 2
mv $HOME/.0gchain/priv_validator_state.json.backup $HOME/.0gchain/data/priv_validator_state.json
wget -O $HOME/.0gchain/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Og/addrbook.json"
sudo systemctl restart 0gchaind  && journalctl -fu 0gchaind -o cat

Start

sudo systemctl daemon-reload
sudo systemctl enable 0gchaind  
sudo systemctl restart 0gchaind  && sudo journalctl -fu 0gchaind  -o cat

Create validator

0gchaind tx staking create-validator \
  --amount=10000000000000000ua0gi \
  --pubkey=$(0gchaind tendermint show-validator) \
  --moniker="STAVR_guide" \
  --chain-id=zgtendermint_16600-1 \
  --commission-rate=0.05 \
  --commission-max-rate=0.1 \
  --commission-max-change-rate=0.1 \
  --min-self-delegation=1 \
  --from=STAVR1 \
  --identity="" \
  --details="" \
  --website="" \
  --gas=500000 --gas-prices=99999ua0gi -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 0gchaind
sudo systemctl disable 0gchaind
rm /etc/systemd/system/0gchaind.service
sudo systemctl daemon-reload
cd $HOME
rm -rf 0g-chain
rm -rf .0gchain
rm -rf $(which 0gchaind)