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https://issues.apache.org/jira/browse/GUACAMOLE-407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358316#comment-16358316
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Sven Gottwald edited comment on GUACAMOLE-407 at 2/9/18 2:49 PM:
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I've made a dockerfile using a recent Ubuntu 16.04 as base image: 
[https://raw.githubusercontent.com/svengo/docker-guacd/master/Dockerfile]. Only 
SSH support is tested so far...

Edit: The container is also available at docker hub: 
https://hub.docker.com/r/svengo/guacd/


was (Author: svengo):
I've made a dockerfile using a recent Ubuntu 16.04 as base image: 
[https://raw.githubusercontent.com/svengo/docker-guacd/master/Dockerfile|https://raw.githubusercontent.com/svengo/docker-guacd/master/Dockerfile].
 Only SSH support is tested so far...

> Update guacd Docker image to build against more recent dependencies
> -------------------------------------------------------------------
>
>                 Key: GUACAMOLE-407
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-407
>             Project: Guacamole
>          Issue Type: Improvement
>          Components: guacd-docker
>            Reporter: Sven Gottwald
>            Assignee: Michael Jumper
>            Priority: Trivial
>
> The version of libssh2 within CentOS 7 lacks support for the more-recent 
> versions of SSH key exchange methods and MACs. As the [guacamole/guacd Docker 
> image|https://hub.docker.com/r/guacamole/guacd/] uses CentOS 7, it also lacks 
> this support.
> Currently, the following key exchange methods are supported:
> * diffie-hellman-group14-sha1
> * diffie-hellman-group-exchange-sha1
> * diffie-hellman-group1-sha1
> and the following MACs are supported:
> * hmac-sha1,hmac-sha1-96
> * hmac-md5,hmac-md5-96
> * hmac-ripemd160
> * hmac-ripemd...@openssh.com
> More recent libssh2 includes support for SHA2 and curve25519. See 
> https://wiki.mozilla.org/Security/Guidelines/OpenSSH for more information and 
> references.



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