OLVM: noVNC VM Console Returns Error "Failed to connect to server (code: 1006)" if VNC Encryption Setting Mismatch in Cluster and KVM Host
(Doc ID 2672512.1)
Last updated on AUGUST 08, 2024
Applies to:
Linux OS - Version Oracle Linux 7.7 with Unbreakable Enterprise Kernel [4.14.35] and laterLinux x86-64
Symptoms
OLVM engine/KVM host system logs reports below error in the system log:
May 25 13:51:54 <OLVM Engine> ovirt-websocket-proxy.py: xxx.xxx.xxx.xxx - - [25/May/2020 13:51:54] xxx.xxx.xxx.xxx: SSL/TLS (wss://) WebSocket connection May 25 13:51:54 <OLVM Engine> ovirt-websocket-proxy.py: xxx.xxx.xxx.xxx - - [25/May/2020 13:51:54] xxx.xxx.xxx.xxx: Version hybi-13, base64: 'False' ... May 25 13:51:54 <OLVM Engine> ovirt-websocket-proxy.py: xxx.xxx.xxx.xxx - - [25/May/2020 13:51:54] Not a SSL connection, falling back to standard Websockify connection handling May 25 13:51:54 <OLVM Engine> ovirt-websocket-proxy.py: xxx.xxx.xxx.xxx - - [25/May/2020 13:51:54] connecting to: <KVM HOST IP>:5900 (using SSL) May 25 13:51:54 <OLVM Engine> journal: 2020-05-25 13:51:54,039+1200 ovirt-websocket-proxy: INFO msg:824 handler exception: [SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:618) May 25 13:51:54 <OLVM Engine> ovirt-websocket-proxy.py: ovirt-websocket-proxy[16652] INFO msg:824 handler exception: [SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:618)
Debug log shows the below error:
xxx.xxx.xxx.xxx - - [25/May/2020 13:55:25] connecting to: <KVM HOST IP>:5900 (using SSL) ovirt-websocket-proxy[17689] INFO msg:824 handler exception: [SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:618) ovirt-websocket-proxy[17689] DEBUG vmsg:828 exception Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 878, in top_new_client client = self.do_handshake(startsock, address) File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 813, in do_handshake self.RequestHandlerClass(retsock, address, self) File "/usr/share/ovirt-engine/services/ovirt-websocket-proxy/ovirt-websocket-proxy.py", line 228, in __init__ *args, **kwargs) File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 112, in __init__ SimpleHTTPRequestHandler.__init__(self, req, addr, server) File "/usr/lib64/python2.7/SocketServer.py", line 649, in __init__ self.handle() File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 544, in handle SimpleHTTPRequestHandler.handle(self) File "/usr/lib64/python2.7/BaseHTTPServer.py", line 340, in handle self.handle_one_request() File "/usr/lib64/python2.7/BaseHTTPServer.py", line 328, in handle_one_request method() File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 510, in do_GET if not self.handle_websocket(): File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 498, in handle_websocket self.new_websocket_client() File "/usr/share/ovirt-engine/services/ovirt-websocket-proxy/ovirt-websocket-proxy.py", line 293, in new_websocket_client websockify.ProxyRequestHandler.new_websocket_client(self) File "/usr/lib/python2.7/site-packages/websockify/websocketproxy.py", line 65, in new_websocket_client connect=True, use_ssl=self.server.ssl_target, unix_socket=self.server.unix_target) File "/usr/lib/python2.7/site-packages/websockify/websocket.py", line 695, in socket sock = ssl.wrap_socket(sock) File "/usr/lib64/python2.7/ssl.py", line 934, in wrap_socket ciphers=ciphers) File "/usr/lib64/python2.7/ssl.py", line 609, in __init__ self.do_handshake() File "/usr/lib64/python2.7/ssl.py", line 831, in do_handshake self._sslobj.do_handshake() SSLError: [SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:618)
KVM Host reports below error in the messages:
May 25 13:51:49 <KVM HOST> saslpasswd2: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found May 25 13:51:49 <KVM HOST> saslpasswd2: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found May 25 13:51:49 <KVM HOST> saslpasswd2: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found May 25 13:51:49 <KVM HOST> saslpasswd2: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found
novnc VM console returns error "Failed to connect to server (code: 1006)".
Cause
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