> For the complete documentation index, see [llms.txt](https://stavr-team.gitbook.io/nodes-guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stavr-team.gitbook.io/nodes-guides/testnets/c4e/node-installation.md).

# Node Installation

## [EXPLORER](https://explorer.stavr.tech/C4E-Testnet)

* Approximate **hardware requirements**:

| Node Type | CPU | RAM | Storage |
| --------- | --- | --- | ------- |
| Testnet   | 4   | 8GB | 150GB   |

## 1) Auto\_install script

```bash
wget -O c4et https://raw.githubusercontent.com/111STAVR111/props/main/C4E/Testnet/c4et && chmod +x c4et && ./c4et
```

## 2) Manual installation

#### Preparing the server

```bash
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

```bash
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 14.08.24

```bash
cd $HOME && mkdir $HOME/go/bin/
git clone https://github.com/chain4energy/c4e-chain.git
cd c4e-chain
git checkout tags/v1.4.0
make install
```

`c4ed version --long | grep -e commit -e version`

* version: 1.4.0
* commit: 025f9b0e957f73e3d42fa84d017e812ae9e0e2f8

## Initiation

```python
c4ed init STAVR_guide --chain-id=babajaga-1
c4ed config chain-id babajaga-1
```

### Create/recover wallet

```bash
c4ed keys add <walletname>
           OR
c4ed keys add <walletname> --recover
```

### Download Genesis

```python
wget -O $HOME/.c4e-chain/config/genesis.json "https://raw.githubusercontent.com/111STAVR111/props/main/C4E/Testnet/genesis.json"
```

`sha256sum $HOME/.c4e-chain/config/genesis.json`

* 0b862736c62b1fba573b1623f4bc8eb2a12000549f538bb6b31c2d1d57f57956

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

```bash
sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0uc4e\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.c4e-chain/config/config.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.c4e-chain/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.c4e-chain/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.c4e-chain/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.c4e-chain/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.c4e-chain/config/config.toml
```

#### Pruning (optional)

```bash
pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="100"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.c4e-chain/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.c4e-chain/config/app.toml
```

#### Indexer (optional)

```bash
indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.c4e-chain/config/config.toml
```

### Download addrbook

```bash
wget -O $HOME/.c4e-chain/config/addrbook.json "https://raw.githubusercontent.com/obajay/nodes-Guides/main/Projects/C4E/C4E_Testnet/addrbook.json"
```

## Create a service file

```bash
sudo tee /etc/systemd/system/c4ed.service > /dev/null <<EOF
[Unit]
Description=c4e Test
After=network-online.target

[Service]
User=$USER
ExecStart=$(which c4ed) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF
```

## StateSync C4E Testnet

```bash
SOOON
```

## SnapShot Testnet updated every 5 hours

```bash
SOOON
```

### Start

```bash
sudo systemctl daemon-reload
sudo systemctl enable c4ed
sudo systemctl restart c4ed && sudo journalctl -fu c4ed -o cat
```

#### Create validator

```python
c4ed tx staking create-validator \
  --amount 1000000uc4e \
  --from <walletName> \
  --commission-max-change-rate "0.1" \
  --commission-max-rate "0.2" \
  --commission-rate "0.1" \
  --min-self-delegation "1" \
  --pubkey  $(c4ed tendermint show-validator) \
  --moniker STAVR_guide \
  --chain-id babajaga-1 \
  --identity="" \
  --details="" \
  --website="" -y
```

## [🧩Services and Tools🧩](https://stavr-team.gitbook.io/nodes-guides/testnets/c4e/statesync-snapshot)

## Monitoring

You can set up your node status alarm here - [Monitoring](https://stavr-team.gitbook.io/nodes-guides/monitoring)

## Security

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

[TMKMS](https://stavr-team.gitbook.io/nodes-guides/tmkms)               [Wallet Security](https://stavr-team.gitbook.io/nodes-guides/wallet-security)

### Delete node

```bash
sudo systemctl stop c4ed
sudo systemctl disable c4ed
rm /etc/systemd/system/c4ed.service
sudo systemctl daemon-reload
cd $HOME
rm -rf c4e-chain
rm -rf .c4e-chain
rm -rf $(which c4ed)
```


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