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https://issues.apache.org/jira/browse/GUACAMOLE-1133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17255749#comment-17255749
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Nick Couchman commented on GUACAMOLE-1133:
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Well, it helps if you're actually using the correct username/password
combination to log in to the VNC server. In the testing I was doing I was
seeing message like this:
{{monospaced text}}
Dec 28 16:21:17 server guacd[97676]: VNC server supports protocol version 3.889
(viewer 3.8)
Dec 28 16:21:17 server guacd[97676]: We have 4 security types to read
Dec 28 16:21:17 server guacd[97676]: 0) Received security type 30
Dec 28 16:21:17 server guacd[97676]: Selecting security type 30 (0/4 in the
list)
Dec 28 16:21:17 server guacd[97676]: 1) Received security type 33
Dec 28 16:21:17 server guacd[97676]: 2) Received security type 2
Dec 28 16:21:17 server guacd[97676]: 3) Received security type 35
Dec 28 16:21:17 server guacd[97676]: Selected Security Scheme 30
Dec 28 16:21:17 server guacd[97676]: Libgcrypt warning: missing initialization
- please fix the application
Dec 28 16:21:17 server guacd[97676]: VNC connection failed: Authentication or
authorization failure
Dec 28 16:21:17 server guacd[97676]: Unable to connect to VNC server.
Dec 28 16:21:17 server guacd[51852]: guacd[97676]: ERROR: Unable to
connect to VNC server.
{{monospaced text}}
If anyone is able to test out the following pull request and let me know if it
fixes the issues you're seeing, I'd appreciate it:
https://github.com/apache/guacamole-server/pull/321
> VNC fails to connect to macOS
> -----------------------------
>
> Key: GUACAMOLE-1133
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1133
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole
> Affects Versions: 1.2.0
> Environment: Remote host macOS 10.15.5
> Guacamole server Raspbian GNU/Linux 10
> Reporter: Matt Fusfield
> Priority: Minor
>
> Since upgrading to version 1.2.0, I am unable to connect via VNC to a Mac
> host. The same exact configuration works with 1.1.0.
>
> In syslog, there are entries regarding "Selecting security type 30" and then
> it receives back types 33, 36,2,35. Then "VNC connection failed:
> authentication or authorization failure"
>
> I attempted to change config to use mac username and password, and that did
> not work either (on 1.1.0 the password is set to the Mac VNC password)
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