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README.md

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nois node setup for testnet — nois-testnet-002

Official documentation:

Explorer:

Usefull tools and references

To set up monitoring for your validator node navigate to Set up monitoring and alerting for nois validator

To migrate your validator to another machine read Migrate your validator to another machine

Hardware Requirements

Like any Cosmos-SDK chain, the hardware requirements are pretty modest.

Minimum Hardware Requirements

  • 4x CPUs; the faster clock speed the better
  • 8GB RAM
  • 100GB of storage (SSD or NVME)
  • Permanent Internet connection (traffic will be minimal during testnet; 10Mbps will be plenty - for production at least 100Mbps is expected)

Recommended Hardware Requirements

  • 8x CPUs; the faster clock speed the better
  • 64GB RAM
  • 1TB of storage (SSD or NVME)
  • Permanent Internet connection (traffic will be minimal during testnet; 10Mbps will be plenty - for production at least 100Mbps is expected)

Set up your nois fullnode

Option 1 (automatic)

You can setup your nois fullnode in few minutes by using automated script below. It will prompt you to input your validator node name!

wget -O nois.sh https://raw.githubusercontent.com/kj89/testnet_manuals/main/nois/nois.sh && chmod +x nois.sh && ./nois.sh

Option 2 (manual)

You can follow manual guide if you better prefer setting up node manually

Post installation

When installation is finished please load variables into system

source $HOME/.bash_profile

Next you have to make sure your validator is syncing blocks. You can use command below to check synchronization status

noisd status 2>&1 | jq .SyncInfo

(OPTIONAL) State Sync

You can state sync your node in minutes by running commands below

peers="[email protected]:55656"; \
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.noisd/config/config.toml

SNAP_RPC="http://135.181.35.46:55657"; \
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 -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\"|" ~/.noisd/config/config.toml

sudo systemctl stop noisd && \
noisd tendermint unsafe-reset-all --home $HOME/.noisd && \
sudo systemctl restart noisd

Create wallet

To create new wallet you can use command below. Don’t forget to save the mnemonic

noisd keys add $WALLET

(OPTIONAL) To recover your wallet using seed phrase

noisd keys add $WALLET --recover

To get current list of wallets

noisd keys list

Save wallet info

Add wallet and valoper address into variables

NOIS_WALLET_ADDRESS=$(noisd keys show $WALLET -a)
NOIS_VALOPER_ADDRESS=$(noisd keys show $WALLET --bech val -a)
echo 'export NOIS_WALLET_ADDRESS='${NOIS_WALLET_ADDRESS} >> $HOME/.bash_profile
echo 'export NOIS_VALOPER_ADDRESS='${NOIS_VALOPER_ADDRESS} >> $HOME/.bash_profile
source $HOME/.bash_profile

Fund your wallet

In order to create validator first you need to fund your wallet with testnet tokens.

curl --header "Content-Type: application/json" \
--request POST \
--data '{"denom":"unois","address":"'$NOIS_WALLET_ADDRESS'"}' \
http://faucet.noislabs.com/credit

Create validator

Before creating validator please make sure that you have at least 1 nois (1 nois is equal to 1000000 unois) and your node is synchronized

To check your wallet balance:

noisd query bank balances $NOIS_WALLET_ADDRESS

If your wallet does not show any balance than probably your node is still syncing. Please wait until it finish to synchronize and then continue

To create your validator run command below

noisd tx staking create-validator \
  --amount 100000000unois \
  --from $WALLET \
  --commission-max-change-rate "0.01" \
  --commission-max-rate "0.2" \
  --commission-rate "0.07" \
  --min-self-delegation "1" \
  --pubkey  $(noisd tendermint show-validator) \
  --moniker $NODENAME \
  --chain-id $NOIS_CHAIN_ID

Security

To protect you keys please make sure you follow basic security rules

Set up ssh keys for authentication

Good tutorial on how to set up ssh keys for authentication to your server can be found here

Basic Firewall security

Start by checking the status of ufw.

sudo ufw status

Sets the default to allow outgoing connections, deny all incoming except ssh and 26656. Limit SSH login attempts

sudo ufw default allow outgoing
sudo ufw default deny incoming
sudo ufw allow ssh/tcp
sudo ufw limit ssh/tcp
sudo ufw allow ${NOIS_PORT}656,${NOIS_PORT}660/tcp
sudo ufw enable

Monitoring

To monitor and get alerted about your validator health status you can use my guide on Set up monitoring and alerting for nois validator

Calculate synchronization time

This script will help you to estimate how much time it will take to fully synchronize your node
It measures average blocks per minute that are being synchronized for period of 5 minutes and then gives you results

wget -O synctime.py https://raw.githubusercontent.com/kj89/testnet_manuals/main/nois/tools/synctime.py && python3 ./synctime.py

Check your validator key

[[ $(noisd q staking validator $NOIS_VALOPER_ADDRESS -oj | jq -r .consensus_pubkey.key) = $(noisd status | jq -r .ValidatorInfo.PubKey.value) ]] && echo -e "\n\e[1m\e[32mTrue\e[0m\n" || echo -e "\n\e[1m\e[31mFalse\e[0m\n"

Get list of validators

noisd q staking validators -oj --limit=3000 | jq '.validators[] | select(.status=="BOND_STATUS_BONDED")' | jq -r '(.tokens|tonumber/pow(10; 6)|floor|tostring) + " \t " + .description.moniker' | sort -gr | nl

Get currently connected peer list with ids

curl -sS http://localhost:${NOIS_PORT}657/net_info | jq -r '.result.peers[] | "\(.node_info.id)@\(.remote_ip):\(.node_info.listen_addr)"' | awk -F ':' '{print $1":"$(NF)}'

Usefull commands

Service management

Check logs

journalctl -fu noisd -o cat

Start service

sudo systemctl start noisd

Stop service

sudo systemctl stop noisd

Restart service

sudo systemctl restart noisd

Node info

Synchronization info

noisd status 2>&1 | jq .SyncInfo

Validator info

noisd status 2>&1 | jq .ValidatorInfo

Node info

noisd status 2>&1 | jq .NodeInfo

Show node id

noisd tendermint show-node-id

Wallet operations

List of wallets

noisd keys list

Recover wallet

noisd keys add $WALLET --recover

Delete wallet

noisd keys delete $WALLET

Get wallet balance

noisd query bank balances $NOIS_WALLET_ADDRESS

Transfer funds

noisd tx bank send $NOIS_WALLET_ADDRESS <TO_NOIS_WALLET_ADDRESS> 10000000unois

Voting

noisd tx gov vote 1 yes --from $WALLET --chain-id=$NOIS_CHAIN_ID

Staking, Delegation and Rewards

Delegate stake

noisd tx staking delegate $NOIS_VALOPER_ADDRESS 10000000unois --from=$WALLET --chain-id=$NOIS_CHAIN_ID --gas=auto

Redelegate stake from validator to another validator

noisd tx staking redelegate <srcValidatorAddress> <destValidatorAddress> 10000000unois --from=$WALLET --chain-id=$NOIS_CHAIN_ID --gas=auto

Withdraw all rewards

noisd tx distribution withdraw-all-rewards --from=$WALLET --chain-id=$NOIS_CHAIN_ID --gas=auto

Withdraw rewards with commision

noisd tx distribution withdraw-rewards $NOIS_VALOPER_ADDRESS --from=$WALLET --commission --chain-id=$NOIS_CHAIN_ID

Validator management

Edit validator

noisd tx staking edit-validator \
  --moniker=$NODENAME \
  --identity=<your_keybase_id> \
  --website="<your_website>" \
  --details="<your_validator_description>" \
  --chain-id=$NOIS_CHAIN_ID \
  --from=$WALLET

Unjail validator

noisd tx slashing unjail \
  --broadcast-mode=block \
  --from=$WALLET \
  --chain-id=$NOIS_CHAIN_ID \
  --gas=auto

Delete node

This commands will completely remove node from server. Use at your own risk!

sudo systemctl stop noisd
sudo systemctl disable noisd
sudo rm /etc/systemd/system/nois* -rf
sudo rm $(which noisd) -rf
sudo rm $HOME/.noisd* -rf
sudo rm $HOME/nois -rf
sed -i '/NOIS_/d' ~/.bash_profile

Pruning for state sync node

pruning="custom"
pruning_keep_recent="100"
pruning_keep_every="2000"
pruning_interval="50"
snapshot_interval="2000"
snapshot_keep_recent="5"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.noisd/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.noisd/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.noisd/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.noisd/config/app.toml
sed -i -e "s/^snapshot-interval *=.*/snapshot-interval = \"$snapshot_interval\"/" $HOME/.noisd/config/app.toml
sed -i -e "s/^snapshot-keep-recent *=.*/snapshot-keep-recent = \"$snapshot_keep_recent\"/" $HOME/.noisd/config/app.toml