Alexander, also known as doxe.
Experienced web3 enthusiast, contributor, moderator and PoS/PoW validator, also just a friendly person
This mini guide contains useful commands with descriptions to help you work with the server. As previously mentioned, one of my goals is development, so this guide will also be constantly expanding.
Update the repositories
sudo apt update && sudo apt upgrade -y
Install necessary utilities
sudo apt install curl tar wget clang pkg-config libssl-dev libleveldb-dev jq build-essential bsdmainutils git make ncdu htop screen unzip bc fail2ban htop -y
The script displays basic information about the system and checks disk read and write speeds, internet connection bandwidth and system performance. Everything is tested by default
Full test
bash <(wget -qO- -o /dev/null yabs.sh)
Test disks only
bash <(wget -qO- -o /dev/null yabs.sh) -ig
Test internet speed only
bash <(wget -qO- -o /dev/null yabs.sh) -dg
Test the system performance only
bash <(wget -qO- -o /dev/null yabs.sh) -di
Displays server external IP address
wget -qO- eth0.me
Displays the name of the current user
whoami
Creating a user
USER_NAME=<INPUT_ROJECT_NAME>
adduser $USER_NAME && usermod -aG sudo $USER_NAME && su -l $USER_NAME
Deleting a user
userdel <name> -rf
Displays information about RAM usage
free -h
Displays information about the characteristics of the processor.
lscpu
Requires installation / Displays what processes are running on the server (CPU load), Shift + H and only processes remain.
sudo apt install htop -y
htop
Disc
sudo apt install iotop -y
iotop
Network
sudo apt install iftop -y
iftop
Displays information about the operating system
cat /etc/*-release
Displays what takes up space on the server (sorting from less to more)
du -had 1 /root | sort -h
Displays on which ports a particular process works
netstat -ntlp | grep LISTEN
or
ss -tulpn
Requires installation / Test the bandwidth of the Internet connection.
sudo apt install speedtest-cli -y
speedtest-cli --simple
Installing GO (One command)
cd $HOME && \
ver="1.18.4" && \
wget "https://golang.org/dl/go$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
Check which RPC port the node is on, change the .file depending on the project (e.g. .stride)
echo $(grep -A 3 "\[rpc\]" ~/.stride/config/config.toml | egrep -o ":[0-9]+")
How much space the logs take up:
journalctl --disk-usage
Clear the logs and leave only the last 2 days:
journalctl --vacuum-time=2d
Clear the logs and save the last 500MB:
journalctl --vacuum-size=500M
File structure
ncdu
Find out the serial number of the disc
sudo apt install smartmontools -y && \
smartctl -s on -a /dev/nvme0
smartctl -s on -a /dev/nvme1,2,3
Monitoring of most parameters
sudo apt install glances
glances
Node status check
<binary> status 2>&1 | jq
Checking the number of peers
curl -s http://localhost:26657/net_info | jq -r '.result.n_peers'
or
curl -s http://localhost:26657/net_info | jq -r '.result.peers[] | "\(.node_info.id)@\(.remote_ip):\(.node_info.listen_addr | split(":")[2])"' | wc -l
Checking vote power online. It will come in handy for update
curl -s localhost:26657/consensus_state | jq '.result.round_state.height_vote_set[0].prevotes_bit_array'
List of monikers of connected peers
curl -s http://localhost:26657/net_info | jq '.result.peers[].node_info.moniker'
Search for all outgoing transactions by address
<binary> q txs --events transfer.sender=<ADDRESS> 2>&1 | jq | grep txhash
Search for all incoming transactions by address
<binary> q txs --events transfer.recipient=<ADDRESS> 2>&1 | jq | grep txhash
Checking transaction information by hash
<binary> q tx <TX_HASH>
Check if priv_validator_key.json is correct
[[ $($TIKER q staking validator $VALOPER -oj | jq -r .consensus_pubkey.key) = $($TIKER status | jq -r .ValidatorInfo.PubKey.value) ]] && echo -e "\nYou win\n" || echo -e "\nYou lose\n"