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Date: Tue, 21 Apr 2009 17:40:23 +0100
From: "Daniel P. Berrange" <berrange@redhat.com>
Subject: Re: [Qemu-devel] resetting a stale VNC connection
Message-ID: <20090421164023.GE26731@redhat.com>
References: <49EDC3B4.7030508@cisco.com> <49EDCC6F.1020703@redhat.com>
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To: Avi Kivity <avi@redhat.com>
Cc: qemu-devel@nongnu.org, "David S. Ahern" <daahern@cisco.com>

On Tue, Apr 21, 2009 at 04:38:55PM +0300, Avi Kivity wrote:
> David S. Ahern wrote:
> >Is there a monitor command (or other method) to force a VNC client
> >connection to close?
> >
> >It looks like the vnc code does not use keepalive probes. If the
> >connection is left hanging the VNC server will never drop it. I have hit
> >this condition a couple of times when a VPN connection drops while the
> >vncviewer is connected to a VM.
> >
> >Specific software version at the moment is kvm-81.
> >  
> 
> Why not just enable tcp keepalives?

Independant of killing off stale VNC clients, it could be desirable to
have a monitor command to kill a client, to allow revoking of end user
access to VNC.

Daniel
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