💾Node Installation

Selfchain Mainnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Mainnet	6	12GB	250GB

1) Auto_install script

source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/refs/heads/main/Selfchain/selfm)

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 07.06.24

cd $HOME && mkdir -p go/bin/
curl -O https://server-1.stavr.tech/Mainnet/Selfchain/selfchaind
chmod +x selfchaind
mv selfchaind /root/go/bin

selfchaind version --long | grep -e commit -e version

• version: ""

• commit: ""

Initiation

selfchaind init STAVR_guide --chain-id=self-1
selfchaind config chain-id self-1

Create/recover wallet

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

Download Addrbook and Genesis

wget -O $HOME/.selfchain/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Selfchain/addrbook.json"
wget -L -O $HOME/.selfchain/config/genesis.json https://server-1.stavr.tech/Mainnet/Selfchain/genesis.json

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

• f8c622536d580dd0d6f7b0e6955e1dac57641fc7a7330a9214f73a6678257526

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.0uslf\"/;" ~/.selfchain/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.selfchain/config/config.toml
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.selfchain/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.selfchain/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.selfchain/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.selfchain/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\"/" $HOME/.selfchain/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.selfchain/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.selfchain/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.selfchain/config/app.toml

Indexer (optional)

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

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Selfchain Mainnet

systemctl stop selfchaind
SNAP_RPC=https://selfchain.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/.selfchain/config/config.toml
selfchaind tendermint unsafe-reset-all --home /root/.selfchain
wget -O $HOME/.selfchain/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Selfchain/addrbook.json"
sudo systemctl restart selfchaind && journalctl -fu selfchaind -o cat

SnapShot Mainnet updated every 5 hours

You can check the size and time of snapshot creation with this command curl -sI https://server-1.stavr.tech/Mainnet/Selfchain/self-snap-1.tar.lz4 | grep "last" && curl -sI https://server-1.stavr.tech/Mainnet/Selfchain/self-snap-1.tar.lz4 | grep content-length | awk '{printf "%.2f GB\n", $2/1024/1024/1024}'

cd $HOME
apt install lz4
sudo systemctl stop selfchaind
cp $HOME/.selfchain/data/priv_validator_state.json $HOME/.selfchain/priv_validator_state.json.backup
rm -rf $HOME/.selfchain/data
LATEST_SNAPSHOT=$(curl -s https://server-1.stavr.tech/Mainnet/Selfchain/ | grep -oE 'self-snap-[0-9]+\.tar\.lz4' | while read SNAPSHOT; do HEIGHT=$(curl -s "https://server-1.stavr.tech/Mainnet/Selfchain/${SNAPSHOT%.tar.lz4}-info.txt" | awk '/Block height:/ {print $3}'); echo "$SNAPSHOT $HEIGHT"; done | sort -k2 -nr | head -n 1 | awk '{print $1}')
curl -o - -L https://server-1.stavr.tech/Mainnet/Selfchain/$LATEST_SNAPSHOT | lz4 -c -d - | tar -x -C $HOME/.selfchain
mv $HOME/.selfchain/priv_validator_state.json.backup $HOME/.selfchain/data/priv_validator_state.json
wget -O $HOME/.selfchain/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Selfchain/addrbook.json"
sudo systemctl restart selfchaind && journalctl -fu selfchaind -o cat

Start

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

Create validator

selfchaind tx staking create-validator \
  --amount=1000000uslf \
  --pubkey=$(selfchaind tendermint show-validator) \
  --moniker="STAVR_Guide" \
  --details="" \
  --identity="" \
  --website="" \
  --chain-id="self-1" \
  --commission-rate="0.10" \
  --commission-max-rate="0.10" \
  --commission-max-change-rate="0.1" \
  --min-self-delegation="1" \
  --from=Yourwallet -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

systemctl stop selfchaind
systemctl disable selfchaind
rm /etc/systemd/system/selfchaind.service
systemctl daemon-reload
cd $HOME
rm -rf .selfchain
rm -rf $(which selfchaind)