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Posted to issues@guacamole.apache.org by "zilexa (Jira)" <ji...@apache.org> on 2021/05/13 08:13:00 UTC
[jira] [Comment Edited] (GUACAMOLE-1345) Disconnect after selecting
large amount of text (Ubuntu 21.04, xrdp, x11vnc)
[ https://issues.apache.org/jira/browse/GUACAMOLE-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17343770#comment-17343770 ]
zilexa edited comment on GUACAMOLE-1345 at 5/13/21, 8:12 AM:
-------------------------------------------------------------
I installed this docker image via Compose: [https://github.com/oznu/docker-guacamole] / [https://hub.docker.com/r/oznu/guacamole/]
Although it is no longer maintained, it installs latest versions.
I checked logfiles of the host (syslog) and the logs within the container but could not find version numbers. According to the dockerfile on github this is 1.3.0. Where can I find version numbers?
Disabling Glyph Cache via the webUI, then connect, same issue.
Meanwhile, folks at xrdp have confirmed this issue with Guacamole for current local desktop session (x11vnc), it does not happen with Microsoft:
[https://github.com/neutrinolabs/xrdp/issues/1885]
{quote}Thanks for reporting this. I've managed to reproduce it with Guacamole, but not with the Microsoft client. It's a buffer overflow in the VNC code for large copy-and-paste operations.
{quote}
was (Author: zilexa):
I installed this docker image via Compose: [https://github.com/oznu/docker-guacamole] / [https://hub.docker.com/r/oznu/guacamole/]
I checked logfiles of the host (syslog) and within the container but could not find version numbers. According to the dockerfile on github this is 1.3.0.
Disabling Glyph Cache via the webUI, then connect, same issue.
Meanwhile, folks at xrdp have confirmed this issue with Guacamole for current local desktop session (x11vnc), it does not happen with Microsoft:
[https://github.com/neutrinolabs/xrdp/issues/1885]
{quote}Thanks for reporting this. I've managed to reproduce it with Guacamole, but not with the Microsoft client. It's a buffer overflow in the VNC code for large copy-and-paste operations.
{quote}
> Disconnect after selecting large amount of text (Ubuntu 21.04, xrdp, x11vnc)
> -----------------------------------------------------------------------------
>
> Key: GUACAMOLE-1345
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1345
> Project: Guacamole
> Issue Type: Bug
> Reporter: zilexa
> Priority: Minor
>
> Ubuntu Budgie 21.04 (but same issue on 20.10), xrdp 0.9.12 and guacamole installed via docker.
> All I did on my homeserver:
> {{sudo apt install xrdp && sudo apt install x11vnc}}
> Changed the xrdp.ini file, x11vnc section to connect to port 5900. Goal is to share the local desktop session that is currently running (instead of a new remote session):
> [X11vnc]
> name=X11vnc
> lib=libvnc.so
> ip=127.0.0.1
> port=5900
> I have Guacamole in Docker running on the server and access guacamole via my laptop within my LAN. Via guacamole I simply connect to xrdp protocol, {{rdp://192.168.88.2}}. Connection works instantly, it is plenty fast.
> Only issue is this one:
> [#755|https://github.com/neutrinolabs/xrdp/issues/755]
> As soon as I select a large/semi-large amount of text, I am disconnected within seconds.
> I can reconnect, but after a fixed amount of time (about 10-15sec) I always get disconnected.
> Unless I use the little time I have after reconnecting to select a single word, when I do that, connection stays.
> This was fixed in xrdp.
> When I connect (using guacamole) directly with x11vnc: {{vnc://192.168.88.2:5900}} I do not have this issue. I prefer the xrdp>x11vnc route though because it is slightly faster.
>
> I wonder if this is a guacamole issue?
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