'How can i send multiple camera to one server

How can i send all webcams to collect from one server. For example:

there is pc_1, pc2, ..., pc_n they are sending camera view to some ubuntu server where i can connect with ssh name@ip_adress

and all pc have a windows on them

i looked Sending live video frame over network in python opencv this but this worked only on localhost
and secondly i looked this Forward RTSP stream to remote socket (RTSP Proxy?) but couldnt figure out how to do it on my situation

linux windows ssh rtsp rtmp

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