Error: :SSL3_READ_BYTES:sslv3 alert certificate unknown (Doc ID 2392831.1)

Last updated on OCTOBER 10, 2022

Applies to:

Symptoms

After re-installing Oracle VM manager (with the old UUID) issue can occurr in the rediscovering of Oracle VM Server (OVS) with the below messages appearing in the /var/log/ovs-agent.log of OVS:

[2018-04-29 18:46:01 23160] ERROR (notificationserver:206) Error sending events: [Errno 1] _ssl.c:492: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown
Traceback (most recent call last):
File "/usr/lib64/python2.6/site-packages/agent/daemon/notificationserver.py", line 192, in event_sender
session.post(events_formatted)
File "/usr/lib64/python2.6/site-packages/agent/daemon/notificationserver.py", line 63, in post
return self._do_post(data)
File "/usr/lib64/python2.6/site-packages/agent/daemon/notificationserver.py", line 76, in _do_post
headers=self.headers)
File "/usr/lib64/python2.6/httplib.py", line 936, in request
self._send_request(method, url, body, headers)
File "/usr/lib64/python2.6/httplib.py", line 973, in _send_request
self.endheaders()
File "/usr/lib64/python2.6/httplib.py", line 930, in endheaders
self._send_output()
File "/usr/lib64/python2.6/httplib.py", line 802, in _send_output
self.send(msg)
File "/usr/lib64/python2.6/httplib.py", line 761, in send
self.connect()
File "/usr/lib64/python2.6/httplib.py", line 1138, in connect
self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file)
File "/usr/lib64/python2.6/ssl.py", line 342, in wrap_socket
suppress_ragged_eofs=suppress_ragged_eofs)
File "/usr/lib64/python2.6/ssl.py", line 120, in __init__
self.do_handshake()
File "/usr/lib64/python2.6/ssl.py", line 279, in do_handshake
self._sslobj.do_handshake()
SSLError: [Errno 1] _ssl.c:492: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown
[2018-04-29 18:46:01 23160] ERROR (notificationserver:245) Error sending statistics: [Errno 1] _ssl.c:492: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown

Cause

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.