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tcp/ip and ports



10:20 am on May 31, 2001 (gmt 0)

10+ Year Member

Does anyone know why running a service on port 80 would be a bad idea. Will it cause a conflict with other services running on this port?


8:43 pm on May 31, 2001 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member

It's probably not a problem if you plan to run this service from your local machine and understand that it's the standard port for http requests, so will conflict with browsing. If a high volume of both http traffic and traffic to/from your service is required, you would avoid packet fragmentation and loss by choosing another port. The Internet Assigned Numbers Authority (IANA) offers a list of "standard" port assignments at [iana.org...]


10:42 pm on May 31, 2001 (gmt 0)

10+ Year Member

Also, if I recall correctly, opening low numbered ports (less then port 1024?) requires root level access (on Unixish servers), at least to initially open the port. That could present a security risk, depending on tightness of code and goal of opening the port.

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