1、编辑/etc/vmware/firewall/service.xml 

vi /etc/vmware/firewall/service.xml 

2、在该文件重中倒数第二行开始添加以下内容：

<!-- Firewall configuration information for VNC --> 
<service id='0040'>
    <id>VNC</id>
    <rule id='0000'>
      <direction>inbound</direction>
      <protocol>tcp</protocol>
      <porttype>dst</porttype>
      <port>
        <begin>40000</begin>
        <end>60000</end>
      </port>
    </rule>
    <enabled>true</enabled>
    <required>false</required>
 </service> 

3、执行以下命令以使配置文件生效：

esxcli network firewall refresh

4、查看是否已经生效：

esxcli network firewall ruleset list | grep VNC
VNC                  true