What will happen if you use other protocol access web server?-CodePudding

If the browser to use other application layer protocol (FTP) a visit to a web server, the server is how to deal with? Who was responsible for checking this scenario

CodePudding user response:

First to see if the server to open a FTP server port, and the operating system is responsible for the FTP server itself, nginx server is responsible for such as such as HTTP, FTP you go in the same to lose account password

CodePudding user response:

reference 1/f, N - N - N response:

first to see if the server to open a FTP server port, and the operating system is responsible for the FTP server itself, such as nginx server is responsible for such as HTTP, FTP you go in the same to lose account password

IP and port is used to establish a TCP connection, and the application layer protocol that's ok?
I mainly want to know how the server in the face of illegal agreement request processing or this kind of scenario the client communicates with the server process (" establish a TCP connection, sending a message, parsing a message, a message format error, close the connection "I guess is such a process, but not sure)

CodePudding user response:

refer to the second floor yvanmiaoyi response:

Quote: reference 1/f, N - N - N response:

First to see if the server to open a FTP server port, and the operating system is responsible for the FTP server itself, nginx server is responsible for such as such as HTTP, FTP you go in the same to lose account password

IP and port is used to establish a TCP connection, and the application layer protocol that's ok?
I mainly want to know how the server in the face of illegal agreement request processing or this kind of scenario the client communicates with the server process (" establish a TCP connection, sending a message, parsing a message, a message format error, close the connection "I guess is such a process, but not sure)

FTP agreement on each machine have ah, should be in the charge of the operating system