unable to connect to the mks:failed to connect to server 903
转自:http://www.sinsafe.net/?p=103
在对ESX4的网络设置方面做过一些更改后，比如IP，子网等等，可能会造成以上的错误报告，你不能使用vSphere控制虚拟机控制台。这时候你需要做下列操作：
# Log in to the ESX host’s service console as root.
# Open /etc/vmware/config with a text editor.
# Add the following line:
vmauthd.server.alwaysProxy = “TRUE”
# Issue the following command to restart xinetd:
service xinetd restart