💾Node Installation

Althea Mainnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Mainnet	8	16GB	250GB

1) Auto_install script

source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/main/Althea/altheam)

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 26.04.24

cd $HOME && mkdir -p go/bin/
git clone https://github.com/AltheaFoundation/althea-L1/
cd $HOME/althea-L1 && git pull
git checkout v1.4.0
make install

althea version --long | head

• version: v1.4.0

• commit: 8bf067c7cfb6105f7a14e0c4e0361cff27e6b495

Initiation

althea init STAVR_guide --chain-id=althea_258432-1
althea config chain-id althea_258432-1

Create/recover wallet

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

Download Genesis

wget -O $HOME/.althea/config/genesis.json "https://raw.githubusercontent.com/AltheaFoundation/althea-L1-docs/main/althea-l1-mainnet-genesis.json"

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

• cfe4c408e759bdc64fb2c12db653ce385dbbbf73d593d5eb4ba6cd1f9a67c15f

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.0aalthea\"/;" ~/.althea/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.althea/config/config.toml
peers="4d9c73a9e541453b56add8fadf0839fd1442d979@15.235.115.155:17200,a0eca501485cc74e0568973ef502d05023f6500d@158.247.226.255:17200,ab9a9e6ea747839652dfe4480e66a5eb78a385e8@51.81.167.60:17200,46ad21a616527181ea3d992339268a5a25c771fa@95.216.38.96:14656"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.althea/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.althea/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.althea/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.althea/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\"/" $HOME/.althea/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.althea/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.althea/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.althea/config/app.toml

Indexer (optional)

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

Download addrbook

wget -O $HOME/.althea/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Althea/addrbook.json"

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Althea Mainnet

systemctl stop althea
SNAP_RPC=https://althea.rpc.m.stavr.tech:443
peers="[e-mail]:17886"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.althea/config/config.toml
LATEST_HEIGHT=$(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/.althea/config/config.toml
althea tendermint unsafe-reset-all --home /root/.althea
sudo systemctl restart althea && journalctl -fu althea -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/Althea/althea-snap-1.tar.lz4 | grep "last" && curl -sI https://server-1.stavr.tech/Mainnet/Althea/althea-snap-1.tar.lz4 | grep content-length | awk '{printf "%.2f GB\n", $2/1024/1024/1024}'

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

Start

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

Create validator

althea tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 1 \
--commission-max-change-rate 1 \
--min-self-delegation "1" \
--amount 1000000000000000000aalthea \
--pubkey $(althea tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id althea_258432-1 \
--gas 300000 \
--fees 30000000000000000aalthea \
--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 althea
sudo systemctl disable althea
rm /etc/systemd/system/althea.service
sudo systemctl daemon-reload
cd $HOME
rm -rf althea-chain
rm -rf .althea
rm -rf $(which althea)