自从我将 ubuntu 从 14.04 升级到 16.04LTS 后，我的 openvpn 意外退出
下面是openvpn的日志文件的内容。
Wed Mar 1 13:46:33 2017 username/123.123.123.123:56729 WARNING: Failed running command (--client-connect): external program exited with error status: 254
Mar 1 13:46:33 2017 username/123.123.123.123:56729 PUSH: Received control message: 'PUSH_REQUEST'
Wed Mar 1 13:46:33 2017 username/123.123.123.123:56729 PUSH: Received control message: 'PUSH_REQUEST'
Wed Mar 1 13:46:33 2017 username/123.123.123.123:56729 PUSH: Received control message: 'PUSH_REQUEST'
Wed Mar 1 13:46:36 2017 username/123.123.123.123:56729 PUSH: Received control message: 'PUSH_REQUEST'
Wed Mar 1 13:46:42 2017 :55522 TLS: 123.123.123.123Initial packet …