# Validator Node

#### Server preparation

```
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 1.24.1

```
cd $HOME
VER="1.24.1"
wget "https://golang.org/dl/go$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"
[ ! -f ~/.bash_profile ] && touch ~/.bash_profile
echo "export PATH=$PATH:/usr/local/go/bin:~/go/bin" >> ~/.bash_profile
source $HOME/.bash_profile
[ ! -d ~/go/bin ] && mkdir -p ~/go/bin
```

***

## Build

```
cd $HOME && mkdir -p go/bin/
git clone https://github.com/celestiaorg/celestia-app.git 
cd celestia-app
git checkout v8.0.3
make install
```

```
celestia-appd version --long | grep -e commit -e version
```

> **Result**
>
> * **version:** 8.0.3
> * **commit:** 0fc10e0b

***

## Initiation

{% hint style="info" %}
Change \<moniker> to your value, moniker is the name of your validator.
{% endhint %}

```
celestia-appd init <moniker> --chain-id celestia
celestia-appd config chain-id celestia
```

***

## Create / recover wallet

{% hint style="info" %}
Change \<walletname> to the name of your wallet
{% endhint %}

```
celestia-appd keys add <walletname>
or
celestia-appd keys add <walletname> --recover
```

***

## Download genesis and addrbook

```
wget -O $HOME/.celestia-app/config/genesis.json "https://files.block-pro.net/testnet/celestia/genesis.json"
wget -O $HOME/.celestia-app/config/addrbook.json "https://files.block-pro.net/testnet/celestia/addrbook.json"
```

```
sha256sum $HOME/.celestia-app/config/genesis.json
```

> **Result**
>
> * 9727aac9bbfb021ce7fc695a92f901986421283a891b89e0af97bc9fad187793

***

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

```
sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.002utia\"/;" ~/.celestia-app/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.celestia-app/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.celestia-app/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.celestia-app/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.celestia-app/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.celestia-app/config/config.toml
```

***

## Pruning (optional)

```
sed -i -e "s/^pruning *=.*/pruning = \"custom\"/" $HOME/.celestia-app/config/app.toml 
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"100\"/" $HOME/.celestia-app/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"19\"/" $HOME/.celestia-app/config/app.toml
```

## Create a service file

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

[Service]
User=$USER
WorkingDirectory=$HOME/.celestia-app
ExecStart=$(which celestia-appd) start --home $HOME/.celestia-app
Restart=on-failure
RestartSec=5
LimitNOFILE=65535

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

## Start

```
sudo systemctl daemon-reload
sudo systemctl enable celestia-appd
sudo systemctl restart celestia-appd && sudo journalctl -u celestia-appd -fo cat
```

## Create validator

{% hint style="info" %}
Change walletName, YOUR\_MONIKER\_NAME, YOUR\_KEYBASE\_ID, YOUR\_DETAILS and YOUR\_WEBSITE\_URL to your values
{% endhint %}

```
celestia-appd tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.2 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount 1000000utia \
--pubkey $(celestia-appd tendermint show-validator) \
--from <wallet> \
--moniker="" \
--chain-id celestia \
--gas auto --gas-adjustment 1.5 --gas-prices 0.005utia \
--identity="" \
--website="" \
--details="" -y
```

## Delete node

```
sudo systemctl stop celestia-appd
sudo systemctl disable celestia-appd
rm /etc/systemd/system/celestia-appd.service
sudo systemctl daemon-reload
cd $HOME
rm -rf celestia-app
rm -rf .celestia-app
rm -rf $(which celestia-appd)
```


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