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amitbet / vncproxy

An RFB proxy, written in go that can save and replay FBS files
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Mouse and keyboards events recording #17

Closed MarkLTZ closed 4 years ago

MarkLTZ commented 4 years ago

Hello!

I read vncproxy is able to record VNC session. Is this recorded video file such as MP4 or similar?

If not it could be nice to add this feature. and I think it is very nice to add also the feature to record mouse and keyboard events as flat file "human readable" (or that can be parsed from 3rd party tools).

My opinion is that this feature is really useful for smart-working solutions. In this way, IT admins are able to provide a tool to employees or consultants for accessing to internal servers by VPN and at the same time record everything they do for security reasons. This is a MUST for forensic analysis

Regards, Mark

amitbet commented 4 years ago

Vncproxy is able to record the VNC sessions, it uses RFB files which hold the original stream, so there is no transcoding. The vncproxy code doesn't perform full image construction as it is built not to manage the pixel & palette data at all, other than dumping these into the output file - this makes it lightweight and low cpu. I do have a project called vnc2video which encodes the vnc stream into an mp4 file, it reconstructs the actual screen from pixel data and sends these images into ffmpeg to be encoded, but this usually requires a very high CPU load since the encoding process is rather demanding (modern encodings like h264 will eat up a ton of cpu even with the simplest profiles)

information about keyboard and mouse events is understood by the vncproxy mechanism so such events can be saved to a human readable file with a smallish coding effort (feel free to have a go at it).

On Fri, Mar 20, 2020 at 4:41 PM Mark LTZ notifications@github.com wrote:

Hello!

I read vncproxy is able to record VNC session. Is this recorded video file such as MP4 or similar?

If not it could be nice to add this feature. and I think it is very nice to add also the feature to record mouse and keyboard events as flat file "human readable" (or that can be parsed from 3rd party tools).

My opinion is that this feature is really useful for smart-working solutions. In this way, IT admins are able to provide a tool to employees or consultants for accessing to internal servers by VPN and at the same time record everything they do for security reasons. This is a MUST for forensic analysis

Regards, Mark

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MarkLTZ commented 4 years ago

Thanks a lot @amitbet for your explanation.