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agisoft-llc / cloud-scripts

Configuration scripts for cloud instances with GPUs to make possible usage of OpenGL GUI applications in TurboVNC using VirtualGL.
MIT License
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Can't connect with TurboVNC from Ubuntu 16.04 (javax.net.ssl.SSLHandshakeException) #8

Closed PolarNick239 closed 4 years ago

PolarNick239 commented 4 years ago

Hi, I executed scripts following instructions with Ubuntu 16.04 Server on aws g3 instance and Ubuntu 16.04 Desktop on local PC.

And after executing command /opt/TurboVNC/bin/vncviewer ${ip}:5901 I encounter:

libjawt.so path: /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64
CConn: connected to host 54.78.16.121 port 5901
CConnection: Server supports RFB protocol version 3.8
CConnection: Using RFB protocol version 3.8
com.turbovnc.rdr.SystemException: javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
    at com.turbovnc.rfb.CSecurityTLS.processMsg(CSecurityTLS.java:124)
    at com.turbovnc.rfb.CSecurityTLS.processMsg(CSecurityTLS.java:87)
    at com.turbovnc.rfb.CSecurityStack.processMsg(CSecurityStack.java:39)
    at com.turbovnc.rfb.CSecurityVeNCrypt.processMsg(CSecurityVeNCrypt.java:179)
    at com.turbovnc.rfb.CSecurityTight.processMsg(CSecurityTight.java:56)
    at com.turbovnc.rfb.CConnection.processSecurityMsg(CConnection.java:213)
    at com.turbovnc.rfb.CConnection.processMsg(CConnection.java:62)
    at com.turbovnc.vncviewer.VncViewer.run(VncViewer.java:838)
    at java.lang.Thread.run(Thread.java:748)

Can you help please?

PolarNick239 commented 4 years ago

Hi!

Yes, I also encountered this. Seems that this can be fixed via java security config (see https://stackoverflow.com/a/57273918 ).

I also use Ubuntu 16.04 and for me security config was located at /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/java.security and commenting out two consequent lines with jdk.tls.disabledAlgorithms ... helped. Note that first line of TurboVNC output provided by you can help to locate JRE directory.

PolarNick239 commented 4 years ago

Thanks! Works like a charm!

PgLoLo commented 3 years ago

Finally, some high quality fixes. Thank you very much!