# Node Installation

## [EXPLORER](https://explorer.stavr.tech/Medibloc-Mainnet/)

* **Minimum hardware requirements**:

| Node Type | CPU | RAM  | Storage |
| --------- | --- | ---- | ------- |
| Mainnet   | 8   | 16GB | 250GB   |

## 1) Auto\_install script

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

## 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 21.03.24

```bash
cd $HOME && mkdir -p go/bin/
git clone https://github.com/medibloc/panacea-core
cd panacea-core
git checkout v2.2.0
make install
```

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

* version: 2.2.0
* commit: 997c018fa069bb99c8e2c46a841aa3e5223067be

## Initiation

```python
panacead init STAVR_guide --chain-id=panacea-3
panacead config chain-id panacea-3
```

### Create/recover wallet

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

### Download Genesis

```bash
wget https://github.com/medibloc/panacea-mainnet/raw/master/panacea-3/genesis.json.gz
gzip -d genesis.json.gz && mv genesis.json ~/.panacea/config/
```

`sha256sum $HOME/.panacea/config/genesis.json`

* e8fa05ce0bbb021a7fc5bf0abd8b6c1840c983ef17d4a8d09ba2646b4abfee33

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

```bash
sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.1umed\"/;" ~/.panacea/config/app.toml
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.panacea/config/config.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.panacea/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.panacea/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.panacea/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.panacea/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 10/g' $HOME/.panacea/config/config.toml

```

#### Pruning (optional)

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

#### Indexer (optional)

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

### Download addrbook

```bash
wget -O $HOME/.panacea/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Medibloc/addrbook.json"
```

## Create a service file

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

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

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

## StateSync Medibloc Mainnet(:warning:Temporarily stopped:warning:)

```bash
SNAP_RPC=https://panacea.rpc.m.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\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.panacea/config/config.toml
panacead tendermint unsafe-reset-all
wget -O $HOME/.panacea/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Medibloc/addrbook.json"
sudo systemctl restart panacead && journalctl -fu panacead -o cat
```

## SnapShot Mainnet (:warning:Temporarily stopped:warning:)

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

### Start

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

#### Create validator

```python
panacead tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.1 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount 1000000udsm \
--pubkey $(panacead tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id panacea-3 \
--gas 300000 \
--fees 30000umed \
--identity="" \
--website="" \
--details="" -y
```

## [🧩Services and Tools🧩](https://stavr-team.gitbook.io/nodes-guides/mainnets/medibloc/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 panacead
sudo systemctl disable panacead
rm /etc/systemd/system/panacead.service
sudo systemctl daemon-reload
cd $HOME
rm -rf panacea-core
rm -rf .panacea
rm -rf $(which panacead)
```