💾Node Installation

Decentr 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/refs/heads/main/Decentr/decentrm)

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 20.11.23

cd $HOME && mkdir -p go/bin/
git clone https://github.com/Decentr-net/decentr
cd decentr
git checkout v1.6.4
make install

decentrd version --long | grep -e commit -e version

• version: 1.6.4

• commit: 2db736296c1089f3fbdf7328e7309e9fc7be1f13

Initiation

decentrd init STAVR_guide --chain-id=mainnet-3
decentrd config chain-id mainnet-3

Create/recover wallet

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

Download Genesis

wget -O $HOME/.decentr/config/genesis.json "https://server-1.stavr.tech/Mainnet/Decentr/genesis.json"

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

• effc0b3f925f89dda69d2e8f40fb8ca92b3f92b714cc364b5ec11d4349138853

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

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

Indexer (optional)

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

Download addrbook

wget -O $HOME/.decentr/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Decentr/addrbook.json"

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Decentr Mainnet

systemctl stop decentrd
SNAP_RPC=https://decentr.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/.decentr/config/config.toml
decentrd tendermint unsafe-reset-all --home /root/.decentr
wget -O $HOME/.decentr/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Decentr/addrbook.json"
sudo systemctl restart decentrd && journalctl -fu decentrd -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/Decentr/decentr-snap-1.tar.lz4 | grep "last" && curl -sI https://server-1.stavr.tech/Mainnet/Decentr/decentr-snap-1.tar.lz4 | grep content-length | awk '{printf "%.2f GB\n", $2/1024/1024/1024}'

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

Start

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

Create validator

decentrd tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.2 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount=1000000udec \
--pubkey $(decentrd tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id mainnet-3 \
--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 decentrd
sudo systemctl disable decentrd
rm /etc/systemd/system/decentrd.service
sudo systemctl daemon-reload
cd $HOME
rm -rf decentr
rm -rf .decentr
rm -rf $(which decentrd)