How do clients locate servers in a client-server networking application?

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In summary, the conversation discusses the process of building a client-server networking application in Java. The central server program is multithreaded to handle multiple clients, but it is unclear how the client will find the server. It is mentioned that the user may have to enter the IP address, unless it is provided through DNIS. The conversation also mentions that servers rarely use dynamic IPs and that the port number of the server application can remain fixed and be coded as a constant in the program. It is emphasized that the client must know the port the server is listening on.
  • #1
ramollari
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I'm trying to build a client-server networking application (in Java). There is a central server program (multithreaded, to handle multiple clients) and the client program. I don't know how the client is going to find the server. Does the user of the client program have to enter the IP address? What if the IP address is dynamic?
 
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The client would have to enter the IP unless the IP is provided through DNIS, in which case you could use the server name. The same open call handles both forms.
Servers rarely use dynamic IPs. Lots of game playing if you do.
You also need to know the port the server is listening on.
 
  • #3
NoTime said:
You also need to know the port the server is listening on.
Yes you're right, although the port number of the server application can remain fixed and can be coded as a constant in the program.
 

1. How does a client find a server?

A client can find a server by using the Domain Name System (DNS) to translate the server's domain name into its corresponding IP address. The client can then use this IP address to establish a connection with the server.

2. What happens if a client cannot find a server?

If a client is unable to find a server, it could be due to a variety of reasons such as incorrect server address, server being offline, or network connectivity issues. In such cases, the client may display an error message or time out while trying to establish a connection with the server.

3. Can a client find multiple servers at once?

Yes, a client can use a process called load balancing to find and connect to multiple servers at once. This involves distributing the client's requests among multiple servers to improve performance and prevent overloading a single server.

4. How does a client determine the best server to connect to?

A client can use various factors such as server location, server response time, and server availability to determine the best server to connect to. This decision-making process is often automated and can be influenced by network configurations and load balancing algorithms.

5. What happens if a client connects to the wrong server?

If a client mistakenly connects to the wrong server, it may not be able to communicate effectively with the server, resulting in errors or incorrect data. This can be avoided by ensuring the client has the correct server address and verifying the server's identity through secure protocols such as HTTPS.

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