sudo curl -O https://raw.githubusercontent.com/v2fly/fhs-install-v2ray/master/install-release.sh
sudo bash install-release.sh
sudo systemctl enable v2ray
sudo systemctl restart v2ray

config path:
/usr/local/etc/v2ray/config.json

{
    "inbounds": [
        {
            "port": 1080,
            "protocol": "vmess",
            "settings": {
                "clients": [
                    {
                        "id": "xxxxxxxxxxxxxxxxxxxxxxxxx"
                    }
                ]
            }
        }
    ],
    "outbounds": [
        {
            "protocol": "freedom"
        }
    ]
}