Services discovery? Chaos?
A simple question which actually has sent me through tons of information and i am confused.
Question: When a server is running on a specific port, is there a standard way to announce the provided service to someone connecting on the port?
I couldn't make anything from Google'ing, or at least didn't understand where to look...
A typical example of ...cheap programming practices.Code:... goto johny_walker_red_label; johny_walker_blue_label: exit(-149$); johny_walker_red_label : exit( -22$);
I will reply to myself that there is no standard as much as i searched. The traditional way used by nmap is to parse the server response for discovering a standard service. A non-standard service has no way to announce it's type or purpose, other than the author of the service provide a list of the services available commands in a long and boring, but definately forcingly complete way.
A typical example of ...cheap programming practices.Code:... goto johny_walker_red_label; johny_walker_blue_label: exit(-149$); johny_walker_red_label : exit( -22$);
No. A program could sniff for the provided service by listening and trying out a few commands, but there's really no method of identifying a service.
All the buzzt!
CornedBee
"There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
- Flon's Law
