Minimum hardware requirements:
1) Auto_install script
source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/refs/heads/main/Juno/Testnet/juno-t)
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 16.04.25
cd $HOME && mkdir $HOME/go/bin/
git clone https://github.com/CosmosContracts/juno
cd juno
git checkout v28.0.2
make install
junod version --long | grep -e version -e commit
commit: 83500fb4619252f4e7cfd4c187c25b3bfafbebfb
Initiation
junod init STAVR_guide --chain-id=uni-7
junod config chain-id uni-7
Create/recover wallet
junod keys add <walletname>
OR
junod keys add <walletname> --recover
Download Genesis and Addrbook
wget -O $HOME/.juno/config/genesis.json "https://server-1.stavr.tech/Testnet/Juno/genesis.json"
wget -O $HOME/.juno/config/addrbook.json "https://server-1.stavr.tech/Testnet/Juno/addrbook.json"
sha256sum $HOME/.juno/config/genesis.json
627f0b5dca4c63820282fb3e44ba959de4435c86b2d1dc8169485b7ef66521bc
Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers
sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0ujuno\"/;" ~/.juno/config/app.toml
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.juno/config/config.toml
external_address=$(wget -qO- eth0.me)
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.juno/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.juno/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.juno/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.juno/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.juno/config/config.toml
Pruning (optional)
pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.juno/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.juno/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.juno/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.juno/config/app.toml
Indexer (optional)
indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.juno/config/config.toml
Create a service file
sudo tee /etc/systemd/system/junod.service > /dev/null <<EOF
[Unit]
Description=juno Testnet
After=network-online.target
[Service]
User=$USER
ExecStart=$(which junod) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF
StateSync juno Testnet
SNAP_RPC=https://juno.rpc.t.stavr.tech:443
LATEST_HEIGHT=$(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/.juno/config/config.toml
junod tendermint unsafe-reset-all --home $HOME/.juno
sed -i -e "s/^snapshot-interval *=.*/snapshot-interval = \"1000\"/" $HOME/.juno/config/app.toml
curl -o - -L https://juno-t.wasm.stavr.tech/wasm-junot.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.juno/ --strip-components 2
wget -O $HOME/.juno/config/addrbook.json "https://server-1.stavr.tech/Testnet/Juno/addrbook.json"
sudo systemctl restart junod && journalctl -fu junod -n100 -ocat
SnapShot Testnet updated every 10 hours
cd $HOME
apt install lz4
sudo systemctl stop junod
cp $HOME/.juno/data/priv_validator_state.json $HOME/.junod/priv_validator_state.json.backup
rm -rf $HOME/.juno/data
LATEST_SNAPSHOT=$(curl -s https://server-1.stavr.tech/Testnet/Juno/ | grep -oE 'juno-snap-[0-9]+\.tar\.lz4' | while read SNAPSHOT; do HEIGHT=$(curl -s "https://server-1.stavr.tech/Testnet/Juno/${SNAPSHOT%.tar.lz4}-info.txt" | awk '/Block height:/ {print $3}'); echo "$SNAPSHOT $HEIGHT"; done | sort -k2 -nr | head -n 1 | awk '{print $1}')
curl -o - -L https://server-1.stavr.tech/Testnet/Juno/$LATEST_SNAPSHOT | lz4 -c -d - | tar -x -C $HOME/.juno
mv $HOME/.juno/priv_validator_state.json.backup $HOME/.juno/data/priv_validator_state.json
wget -O $HOME/.juno/config/addrbook.json "https://server-1.stavr.tech/Testnet/Juno/addrbook.json"
sudo systemctl restart junod && journalctl -fu junod -n100 -ocat
Start
sudo systemctl daemon-reload
sudo systemctl enable junod
sudo systemctl restart junod && sudo journalctl -fu junod -o cat
Create validator
junod tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.1 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount 1000000ujuno \
--pubkey $(junod tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id uni-7 \
--gas 350000 \
--identity="" \
--website="" \
--details="" -y
Monitoring
Security
You can create secure management of your wallet and your node by following this links.
Delete node
sudo systemctl stop junod
sudo systemctl disable junod
rm /etc/systemd/system/junod.service
sudo systemctl daemon-reload
cd $HOME
rm -rf juno
rm -rf .juno
rm -rf $(which junod)
