KMS for CentOS

 cp vlmcsd-x64-musl-static to /root

rename vlmcsd-x64-musl-static to kmsserver

vim /etc/systemd/system/kmsserver.service

[Unit]
Description=KMS Server
After=network.target

[Service]
Type=forking
PIDFile=/var/run/kmsserver.pid
ExecStart=/root/kmsserver -p /var/run/kmsserver.pid
ExecStop=/bin/kill -HUP $MAINPID
PrivateTmp=True
Restart=always

[Install]
WantedBy=multi-user.target

systemctl enable kmsserver.service
systemctl start kmsserver.service