系统报的错误

w490978025

Exception type SSL.Error

Exception Handler Information
Traceback (most recent call last):
  File "/usr/bin/../share/rhn/rhn_applet/rhn_applet.py", line 448, in refresh
    self.model.refresh(force)
  File "/usr/bin/../share/rhn/rhn_applet/rhn_applet_model.py", line 264, in refresh
    self.__rpc_server__.refresh(force)
  File "/usr/bin/../share/rhn/rhn_applet/rhn_applet_rpc.py", line 84, in refresh
    status = server.applet.poll_status()
  File "/usr/lib/python2.2/xmlrpclib.py", line 821, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.2/site-packages/rhn/rpclib.py", line 126, in _request
    verbose=self._verbose
  File "/usr/lib/python2.2/site-packages/rhn/transports.py", line 130, in request
    headers, fd = req.send_http(host, handler)
  File "/usr/lib/python2.2/site-packages/rhn/transports.py", line 614, in send_http
    headers=self.headers)
  File "/usr/lib/python2.2/httplib.py", line 701, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python2.2/httplib.py", line 723, in _send_request
    self.endheaders()
  File "/usr/lib/python2.2/httplib.py", line 695, in endheaders
    self._send_output()
  File "/usr/lib/python2.2/httplib.py", line 581, in _send_output
    self.send(msg)
  File "/usr/lib/python2.2/httplib.py", line 560, in send
    self.sock.sendall(str)
  File "/usr/lib/python2.2/site-packages/rhn/SSL.py", line 191, in write
    sent = self._connection.send(data)
Error: [('SSL routines', 'SSL3_GET_SERVER_CERTIFICATE', 'certificate verify failed')

???
??//

ssffzz1

说清楚点，是怎么出的错误。
这样不明不白的，别人怎么帮你。