The server will also pick an available port, otherwise it theo ther listening webserver processes would not be able to listen for incoming requests. -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Bliss, Aaron Sent: Friday, August 04, 2006 10:44 AM To: General Red Hat Linux discussion list Subject: How does that tcp traffic work I know this is a bit of a networking question more than a redhat question, however I'm sure you guys will be able to explain this to me; I'm trying to understand exactly how this works, and have not been able to find any solid authority on the subject; I understand the concept of ports, well know ports, and part of the initial 3 way handshake of a new tcp session; My question is, does the initial receiving host of a session (usually a server) use the port that it's listening for the tcp session, or does it negotiate a port number that is not in use like the client does? For example, host A is a client, host B is a webserver listening on port 80; host A wants some data from host B's port 80; lets say host A wants to use port 6785; will the tcp session then use port 6785 for host A and port 80 for host B, or will they also pick an available port from host B as well; if port 80 is used, how are multiple sessions possible; i.e. how can the host B serve up more web traffic if port 80 is busy? Thanks for your help. Aaron Confidentiality Notice: The information contained in this electronic message is intended for the exclusive use of the individual or entity named above and may contain privileged or confidential information. If the reader of this message is not the intended recipient or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that dissemination, distribution or copying of this information is prohibited. If you have received this communication in error, please notify the sender immediately by telephone and destroy the copies you received. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
