Configuration sample file for v2ray (https://github.com/v2ray/v2ray-core) which should be located in path: /etc/v2ray and renamed to config.json according to v2ray.service (https://gist.github.com/rogerlin0330/7823c8db35c32d9bcfa646060e098702)

v2ray-config.json

{
  "log": {
    "loglevel": "warning",
    "access": "/var/log/v2ray/access.log",
    "error": "/var/log/v2ray/error.log"
  },
  "inbounds": [
    {
      "port": 1081,
      "listen": "0.0.0.0",
      "protocol": "socks",
      "sniffing": {
        "enabled": true,
        "destOverride": ["http", "tls"]
      },
      "settings": {
        "auth": "noauth",
        "udp": false
      }
    }
  ],
  "outbounds": [{
      "protocol": "vmess",
      "settings": {
        "vnext": [
          {
            "address": "www.xxxxx.tech",
            "port": 443,
            "users": [
              {
                "id": "xxxxxxxxxxxxxxxxxxxxx",
                "alterId": 64
              }
            ]
          }
        ]
      },
      "streamSettings": {
        "network": "ws",
        "security": "tls",
        "wsSettings": {
          "path": "/xxxxx"
        }
      }
  }],
  "routing": {
    "domainStrategy": "IPOnDemand",
    "rules": [
      {
        "type": "field",
        "outboundTag": "direct",
        "domain": ["geosite:cn"]
      },
      {
        "type": "field",
        "outboundTag": "direct",
        "ip": [
          "geoip:cn",
          "geoip:private"
        ]
      }
    ]
  }
}