Wednesday, May 25, 2011

App. Server: Application deployment to a reserved port number

Ensure that you avoid reserved port numbers when deploying your application. Some application servers will fail to prevent you from deploying your application on a reserved server port:

(e.g. 1, 7, 9, 11, 13, 15, 17, 19, 20, 21, 22, 23, 25, 37, 42, 43, 53, 77, 79, 87, 95, 101, 102, 103, 104, 109, 110, 111, 113, 115, 117, 119, 123, 135, 139, 143, 179, 389, 465, 512, 513, 514, 515, 526, 530, 531, 532, 540, 556, 563, 587, 601, 636, 993, 995, 2049, 3659, 4045, 6000, 6665, 6666, 6667, 6668, 6669).

If you use one of these reserved ports, some web browsers may honor it but at least WebKit-based browsers (e.g. Safari and Google Chrome) will not.

You may see some page content but all resources (images and styles) will fail to load.

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