💾Node Installation

Airchains Testnet guide

EXPLORER

Minimum hardware requirements:

Node Type

CPU

RAM

Storage

1) Auto_install script

wget -O airchaint https://raw.githubusercontent.com/111STAVR111/props/main/Airchains/airchaint && chmod +x airchaint && ./airchaint

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 22.10.24

cd $HOME && mkdir -p go/bin/
git clone https://github.com/airchains-network/junction/
cd $HOME/junction
git checkout v0.2.0
make build
mv $HOME/junction/build/junction-jip-2 $HOME/go/bin/junctiond

junctiond version --long | grep -e commit -e version

version: v0.2.0
commit: b5229571fe205967902963b895f5ccfb52e39ce8

Initiation

junctiond init STAVR_guide --chain-id=junction

Create/recover wallet

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

Download Genesis

wget -O $HOME/.junction/config/genesis.json "https://raw.githubusercontent.com/111STAVR111/props/main/Airchains/genesis.json"

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

6a73e3473eb2978b1db0dd572be6316a6fab4321cd5c54e28f1c5733fa9d637c

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

sed -i 's/minimum-gas-prices =.*$/minimum-gas-prices = "0.001amf"/' $HOME/.junction/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.junction/config/config.toml
peers="48887cbb310bb854d7f9da8d5687cbfca02b9968@35.200.245.190:26656,2d1ea4833843cc1433e3c44e69e297f357d2d8bd@5.78.118.106:26656,de2e7251667dee5de5eed98e54a58749fadd23d8@34.22.237.85:26656,1918bd71bc764c71456d10483f754884223959a5@35.240.206.208:26656,ddd9aade8e12d72cc874263c8b854e579903d21c@178.18.240.65:26656,eb62523dfa0f9bd66a9b0c281382702c185ce1ee@38.242.145.138:26656,0305205b9c2c76557381ed71ac23244558a51099@162.55.65.162:26656,086d19f4d7542666c8b0cac703f78d4a8d4ec528@135.148.232.105:26656,3e5f3247d41d2c3ceeef0987f836e9b29068a3e9@168.119.31.198:56256,8b72b2f2e027f8a736e36b2350f6897a5e9bfeaa@131.153.232.69:26656,6a2f6a5cd2050f72704d6a9c8917a5bf0ed63b53@93.115.25.41:26656,e09fa8cc6b06b99d07560b6c33443023e6a3b9c6@65.21.131.187:26656"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.junction/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.junction/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.junction/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.junction/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\"/" $HOME/.junction/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.junction/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.junction/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.junction/config/app.toml

Indexer (optional)

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

Download addrbook

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

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Airchains Testnet

SNAP_RPC=https://airchains.rpc.t.stavr.tech:443
SEEDS="bb26fc8cef05cee75d4cae3f25e17d74c7913967@airchains-t.seed.stavr.tech:4476"
cp $HOME/.junction/data/priv_validator_state.json $HOME/.junction/priv_validator_state.json.backup
sed -i -e "/seeds =/ s/= .*/= \"$SEEDS\"/"  $HOME/.junction/config/config.toml
LATEST_HEIGHT=$(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/.junction/config/config.toml
junctiond tendermint unsafe-reset-all --home $HOME/.junction --keep-addr-book
mv $HOME/.junction/priv_validator_state.json.backup $HOME/.junction/data/priv_validator_state.json
wget -O $HOME/.junction/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Airchains/addrbook.json"
sudo systemctl restart junctiond && journalctl -fu junctiond -o cat

SnapShot Testnet updated every 5 hours

cd $HOME
apt install lz4
sudo systemctl stop junctiond
cp $HOME/.junction/data/priv_validator_state.json $HOME/.junction/priv_validator_state.json.backup
rm -rf $HOME/.junction/data
curl -o - -L https://airchains-t.snapshot.stavr.tech/airchain-snap.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.junction --strip-components 2
mv $HOME/.junction/priv_validator_state.json.backup $HOME/.junction/data/priv_validator_state.json
wget -O $HOME/.junction/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Airchains/addrbook.json"
sudo systemctl restart junctiond && journalctl -fu junctiond -o cat

Start

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

Create validator

#pubkey
junctiond tendermint show-validator --home /root/.junction
cd $HOME
nano /root/.junction/validator.json
{
  "pubkey": {"#pubkey"},
  "amount": "1000000amf",
  "moniker": "STAVR_Guide",
  "commission-rate": "0.05",
  "commission-max-rate": "1",
  "commission-max-change-rate": "1",
  "min-self-delegation": "1"
}
junctiond tx staking create-validator $HOME/.junction/validator.json --from WalletName --fees 200amf --chain-id junction -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 junctiond
sudo systemctl disable junctiond
rm /etc/systemd/system/junctiond.service
sudo systemctl daemon-reload
cd $HOME
rm -rf .junction
rm -rf $(which junctiond)

PreviousAirchains NextStateSync/Snapshot

Last updated 1 month ago