https://keva.app/?62493681

Now you can use kva.sh script to automatically install kevacoin+electrumx local tcp server on ubuntu 20.04.

wget keva.app/kva.sh

chmod +x kva.sh

sudo -s

./kva.sh

Then you can use your ip and tcp port 50001 in kevacoin app.

check electrumx status

systemctl status electrumx.kevacoin.service

If you run this kva.sh on vps like linode, you need to run update first.

apt-get update && apt-get -y upgrade

You can also install Ubuntu 20.04 byself

https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso

ubuntu 20.04

apt-get update && apt-get -y upgrade

add ram

sudo swapoff -a

sudo fallocate -l 4G /swapfile && \

sudo chmod 600 /swapfile && \

sudo mkswap /swapfile && \

sudo swapon /swapfile && \

sudo cp /etc/fstab /etc/fstab.bak && \

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab && \

sudo swapon --show

use free -m to check

wget https://github.com/kevacoin-project/kevacoin/releases/download/v0.16.8.0/kevacoin-0.16.8.0.tar.gz

mkdir kevacoin

tar zxvf kevacoin-0.16.8.0.tar.gz -C kevacoin

cd kevacoin

mv kevacoin-0.16.8.0/bin .

cd bin

./kevacoind -daemon

./kevacoin-cli stop

cd /root/.kevacoin

clear

rm -rf *

create new conf

vi kevacoin.conf

change your own user/password/port

rpcuser=galaxy

rpcpassword=frontier

rpcport=9992

server=1

addressindex=1

txindex=1

run kevacoin daemon

cd /root/kevacoin/bin

./kevacoind -daemon

#check stats

./kevacoin-cli get_info

electrumx https://kevacoin.org/keva_electrumx.html

cd /root

python

sudo apt install python3-pip

python3.8 -m pip install pip

python3.8 -m pip install aiohttp

python3.8 -m pip install pylru

python3.8 -m pip install plyvel

python3.8 -m pip install aiorpcx

python3.8 -m pip install aiorpcX==0.18.4

sudo apt install python3.8-dev

python3.8 -m pip install py-cryptonight

sudo apt-get install libgflags2.2 libgflags-dev

sudo apt-get install librocksdb-dev

sudo apt-get install libsnappy-dev zlib1g-dev libbz2-dev liblz4-dev

python3.8 -m pip install Cython

python3.8 -m pip install git+https://github.com/twmht/python-rocksdb.git

apt-get update && apt-get -y upgrade

domain

sudo apt-get update

sudo apt-get install software-properties-common

sudo add-apt-repository universe

sudo add-apt-repository ppa:certbot/certbot

sudo apt-get update

sudo apt-get install certbot

sudo certbot certonly --standalone

crontab -e

0 0 1 * * /usr/bin/certbot renew --force-renewal

setup email and domain

sudo chmod -R 755 /etc/letsencrypt/archive/

sudo chmod -R 755 /etc/letsencrypt/live/

setup electrumx profile

mkdir kevax

cd /etc/systemd/system/

vi electrumx.kevacoin.service

#services profile

[Unit]

Description=Kevacoin

After=network.target

[Service]

EnvironmentFile=/etc/electrumx.kevacoin.conf

ExecStart=/root/electrumx/electrumx_server

User=root

LimitNOFILE=8192

TimeoutStopSec=30min

[Install]

WantedBy=multi-user.target

electrumx profile

cd /root

vi /etc/electrumx.kevacoin.conf

#profile

DB_DIRECTORY = /root/kevax/

COIN=Kevacoin

PEER_ANNOUNCE=on

SERVICES=rpc://localhost:50001,ssl://:50002

REQUEST_SLEEP=1000

INITIAL_CONCURRENT=20

COST_HARD_LIMIT=1000000

#change your user:password and port

DAEMON_URL = http://galaxy:[email protected]:9992/

DB_ENGINE=rocksdb

SSL_CERTFILE=/etc/letsencrypt/live/your doamin/fullchain.pem

SSL_KEYFILE=/etc/letsencrypt/live/your doamin/privkey.pem

ALLOW_ROOT=True

install exlectrum

apt install git

git clone https://github.com/kevacoin-team/electrumx

check block stats

./kevacoin/bin/kevacoin-cli get_info

if sync ok, run electrumx.

systemctl daemon-reload

systemctl start electrumx.kevacoin.service

systemctl status electrumx.kevacoin.service

systemctl enable electrumx.kevacoin.service

start kevacoin daemon when reboot

vi /etc/systemd/system/keva.service

#profile

[Unit]

Description=keva

After=network.target

[Service]

ExecStart=/root/kevacoin/bin/kevacoind

User=root

LimitNOFILE=8192

TimeoutStopSec=30min

[Install]

WantedBy=multi-user.target

check

systemctl daemon-reload

systemctl start keva

systemctl status keva

./kevacoin/bin/kevacoin-cli get_info

systemctl enable keva

install ipfs

wget https://dist.ipfs.io/go-ipfs/v0.7.0/go-ipfs_v0.7.0_linux-amd64.tar.gz

tar -xvzf go-ipfs_v0.7.0_linux-amd64.tar.gz

cd go-ipfs

sudo bash install.sh

ipfs init

Start the daemon

ipfs daemon

ctrl+c to stop

start ipfs when reboot

vi /etc/systemd/system/ipfs.service

profile

[Unit]

Description=IPFS daemon

After=network.target

[Service]

#Uncomment the following line for custom ipfs datastore location

#Environment=IPFS_PATH=/path/to/your/ipfs/datastore

ExecStart=/usr/local/bin/ipfs daemon

Restart=on-failure

[Install]

WantedBy=multi-user.target

test

systemctl daemon-reload

systemctl start ipfs

systemctl status ipfs

systemctl enable ipfs

install go

wget https://golang.org/dl/go1.15.5.linux-amd64.tar.gz

sudo tar -C /usr/local -xzf go1.15.5.linux-amd64.tar.gz

export PATH=$PATH:/usr/local/go/bin

git clone https://github.com/kevacoin-project/keva_ipfs

cd ..

cd keva_ipfs

go build .

setup server

vi /etc/profile

#profile

#Connection to ElectrumX server

export KEVA_ELECTRUM_HOST=your domain

export KEVA_ELECTRUM_SSL_PORT=50002

export KEVA_MIN_PAYMENT=9

#Payment address

export KEVA_PAYMENT_ADDRESS=your keva address

export KEVA_TLS_ENABLED=1

export KEVA_TLS_KEY=/etc/letsencrypt/live/$KEVA_ELECTRUM_HOST/privkey.pem

export KEVA_TLS_CERT=/etc/letsencrypt/live/$KEVA_ELECTRUM_HOST/fullchain.pem

reboot to test

reboot

start go

cd keva_ipfs

nohup ./go_be >/dev/null 2>&1 &

Run keva ipfs with Electrumx

If you want to run keva ipfs with Electrumx, you can use this folk.

git clone https://github.com/kevacoin-team/keva_ipfs

cd ..

cd keva_ipfs

go build .

vi /etc/systemd/system/kevaipfs.service

[Unit]

Description=Keva IPFS After=network.target

[Service]

WorkingDirectory=/root/keva_ipfs ExecStart=/root/keva_ipfs/keva_ipfs

Restart=on-failure

[Install]

WantedBy=multi-user.target

test

systemctl daemon-reload

systemctl start kevaipfs

systemctl status kevaipfs

systemctl enable kevaipfs

Update Electrumx

update

./kevacoin/bin/kevacoin-cli stop

systemctl stop electrumx.kevacoin.service

rm -rf electrumx

git clone https://github.com/kevacoin-project/electrumx

systemctl start electrumx.kevacoin.service

if the database is change, delete the kevax and mkdir kevax.

rm -rf kevax

mkdir kevax

reboot

./kevacoin/bin/kevacoin-cli get_info

systemctl status electrumx.kevacoin.service

wait sync ok and reboot

#start go

cd keva_ipfs

nohup ./go_be >/dev/null 2>&1 &

65535 fix

The electrumx db will stop every 65535. It is better to clear db and rebuild some time.

#create fixe.sh

vi fixe.sh

#!/bin/bash echo "Fix electrumx 65535!"

systemctl stop electrumx.kevacoin.service

rm -rf /root/kevax

mkdir /root/kevax

systemctl start electrumx.kevacoin.service

#run

chmod -R 777 fixe.sh

#clear db every month/2month

crontab -e

1 1 1 * * bash /root/fixe.sh

1 1 15 * * bash /root/fixe.sh

1 1 1 */2 * bash /root/fixe.sh

1 1 1 1-11/2 * bash /root/fixe.sh