How to identify clients to accept, and servers to contact
{"Image DocumentName": "How to identify clients to accept, and servers to contact?", "Image ImageDescription": "Machine?? by its IP address (e.g., ) Application/service/program?? by (IP address and) port number. standard applications have own, well-known port numbers. SSH: 22. Mail: 25. Web: 80. Look in /etc/services for more.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}