💾Node Installation

Galactica Testnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Testnet	4	8GB	150GB

1) Auto_install script

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

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 28.11.24

cd $HOME && mkdir -p go/bin/
git clone https://github.com/Galactica-corp/galactica
cd galactica
git checkout v0.2.7
make install

galacticad version --long | grep -e version -e commit

• version: 0.2.7

• commit: da411a7a648f2cdd1bf7961b35272218a0c5b92f

Initiation

galacticad init STAVR_guide --chain-id=galactica_9302-1

Create/recover wallet

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

Download Addrbook and Genesis

wget -O $HOME/.galactica/config/addrbook.json "https://server-1.stavr.tech/Testnet/Galactica/addrbook.json"
wget -O $HOME/.galactica/config/genesis.json "https://server-1.stavr.tech/Testnet/Galactica/genesis.json"

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

• 03f88591a3a60c9940c7f49d43f24e8bb6e39ea4ff22d783fcc6f12762446e59

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0agnet\"/;" ~/.galactica/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.galactica/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.galactica/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.galactica/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.galactica/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.galactica/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\"/" $HOME/.galactica/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.galactica/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.galactica/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.galactica/config/app.toml

Indexer (optional)

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

Create a service file

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

[Service]
User=$USER
ExecStart=$(which galacticad) start --chain-id galactica_9302-1
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync Galactica Testnet

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

SnapShot Testnet updated every 5 hours

https://server-1.stavr.tech/Testnet/Galactica/

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

Start

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

Create validator

galacticad tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.1 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount 1000000000000000000agnet \
--pubkey $(galacticad tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id galactica_9302-1 \
--gas 300000 \
--identity="" \
--website="" \
--details="" -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

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