Description

All computers in the same local network only need local network connections for screen sharing. Now, I have zero Internet access concerns while I share my screen to all other computers in my network.

In short, the computer to share screen runs this Python script that captures screenshots periodically and hosts screenshots as a streaming web service. Other computers then browse the screenshots with any web browser.

Requirements

This tool can run on Linux, Windows and MAC.

• Python 2.x or 3.x

• Know issue: In Linux, this tool does not work with Wayland because of a security reason. You must use Xorg (by selecting Xorg on login).

Install

1. pip install -r requirements.txt

2. In a directory, run "git clone https://github.com/yilmazchef/lightweight-screen-share.git". You will have a new directory "screenshare" with code inside.

Run as http

1. To start the screen sharing service, run "python screenshare.py [-p port] [-w password]".

   The default service port is 18331. Example commands are below.

   # host screenshots on port 18331 and no password

   python screenshare.py

   # host screenshots on port 80 and password "abcdef"

   python screenshare.py -p 80 -w abcdef

   python screenshare.py --port 80 --password abcdef

2. On other computers, open a web browser and browse "http://serverip:port".

   For example, if the server ip is 192.168.0.101 and the service port is 18331, then the URL to browse is "http://192.168.0.101:18331".

Run as https

1. (Optional) Create a self-signed certificate and a private key. Or, obtain a signed certificate and private key.

   # openssl req -x509 -newkey rsa:2048 -nodes -out cert.pem -keyout key.pem -days 9999

2. To start the screen sharing service with https, run "python screenshare.py -s [-p port] [-w password] [-c cert.pem -k key.pem]".

   The default service port is 18331. Example commands are below.

   # host screenshots on port 18331 and no password, https with default built-in certificate and private key

   python screenshare.py -s

   # host screenshots on port 443 and password "abcdef", https with default built-in certificate and private key

   python screenshare.py -s -p 443 -w abcdef

   python screenshare.py -s --port 443 --password abcdef

   # host screenshots on port 18331 and no password, https with a certificate file and a private key file

   python screenshare.py -s -c cert.pem -k key.pem

3. On other computers, open a web browser and browse "https://serverip:port".

   For example, if the server ip is 192.168.0.101 and the service port is 18331, then the URL to browse is "https://192.168.0.101:18331".

   You will see a warning about the self-signed certificate in the web browser. Accept the warning and continue.

To terminate:

In Linux, press CTRL \  (Control Backslash, not CTRL C)

In Windows, press CTRL Break