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Second, the Common FTP server program
1. An optional role service in the Iis:windows Server R2 role
IIS components mainly provide www, FTP, SMTP and other services
Third, configure the default FTP Web site
1. Install the FTP server
Add a role (IIS/FTP)
2. Configure the Default FTP
1) Home directory (C:\inetpub\ftproot)
2) account security: Default anonymous Access
3) Directory Security
Authorized access
Access Denied
4) Access: FTP://IP or domain name
Iv. FTP Client
1. Common FTP client program
1) www browser
2) command-line tools
Command line (GET, mget download multiple, put, mput upload multiple)
Note: Anonymous user anonymous (password is empty) or FTP (password FTP) with the command to access FTP
V. Using SERV-U to build an FTP server
2, Serv-u: You can set any PC as an FTP server
Other FTP service-side programs:
Xlight FTP Server
Raidenftpd
EFT Server
FileZilla Server (free open source)
Vi. Web Services
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<body>
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Vii. TCP protocol and UDP protocol
1. TCP Transmission Control Protocol
2, the advantages and disadvantages of TCP
Pros: Reliable, connection-oriented protocols
Cons: Low transmission efficiency
3. UDP User Datagram Protocol
4, the advantages and disadvantages of UDP
Advantages: High Transmission efficiency
Cons: Unreliable, non-connected services
Viii. functions of common protocols and corresponding port numbers
1. DNS (domain Name System)
Function: Used to complete the mapping between the domain name and the IP address
Port number 53 for TCP or UDP
2. SMTP Simple Mail Transfer Protocol
Function: Used to send and receive messages; Port number 25 for TCP
3. POP3 Post Office Protocol version 3
Function: Used for client to receive mail; Port number 110 for TCP
4. HTTP Hypertext Transfer Protocol
Purpose: For transmitting data such as normal text, hypertext, audio, and video used by internet browsers.
Port number is 80 of TCP
5. HTTPS Security Hypertext Transfer Protocol
Function: provides encryption; port number is 443 of TCP
6. ftp File Transfer Protocol
function: Used to transfer files; Port number is 21 and 20 of TCP
7. TFTP Simple File Transfer Protocol
Function: used for file transfer; port number is UDP 69
8. Telnet
Function: Used to remotely manage network devices such as computers or routers in text mode
Port number is 23 of TCP
FTP Service, Web service
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