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02-26-2005, 04:58 PM
| #1 |
| Politics&Cpp geek  Join Date: Oct 2004
Posts: 104
| portnumbers (In theory?) Like if im making a chat server/client, I can actually make my chat clients/servers speak to each other through port 80? Or do I have to chose a "unserserved" portnumber?  |
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02-26-2005, 05:03 PM
| #2 |
| Registered User Join Date: Sep 2004 Location: California
Posts: 3,020
| Yes, you can bind to any port that is not already in use, and is less than 65356. To bind to a port under 1024 requires root access on most *nix setups though. |
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02-27-2005, 01:57 PM
| #3 |
| Registered User Join Date: Nov 2001
Posts: 1,348
| You can potentially bind to any port you want. The issue arises when it is a common port used for something else. Then other apps and services may not function correctly. Kuphryn |
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02-27-2005, 02:15 PM
| #4 |
| Hamster without a wheel  Join Date: Aug 2001
Posts: 1,385
| Ports are reverved for good reasons, you should not really use ports below 1024. Common ports: (invalid link removed)
__________________ Monday - what a way to spend a seventh of your life  Last edited by iain; 02-27-2005 at 02:24 PM. Reason: bad link removed |
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02-27-2005, 02:21 PM
| #5 |
| Registered User Join Date: Sep 2004
Posts: 197
| You can use any port EXCEPT 0 (commonly used by OS's to give you a random port actually, and is considered reserved by IANA). As it was mentioned most *nix variants protect ports 1024 and below. I would suggest using an unreserved port any ways though, as you don't have to worry about steping on any toes (so to speak), incase it is being used. Iain, I don't see any ports listed on that site, a beter choice would to just go to the source (IANA) any how, as they keep the up to date list on the web. This can be found at http://www.iana.org/assignments/port-numbers Oh, and some trivia, can you guess who got the port 666 assigned to them?
__________________ If any part of my post is incorrect, please correct me. This post is not guarantied to be correct, and is not to be taken as a matter of fact, but of opinion or a guess, unless otherwise noted. Last edited by Xipher; 02-27-2005 at 02:27 PM. |
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02-27-2005, 02:23 PM
| #6 |
| Hamster without a wheel Join Date: Aug 2001
Posts: 1,385
| sorry, wrong link!
__________________ Monday - what a way to spend a seventh of your life |
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