Warning: fsockopen(): php_network_getaddresses..........

[developer_x]

Below is the warning which I got a little while earlier :

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Warning: fsockopen(): php_network_getaddresses: gethostbyname failed in c:\web\catalog007\includes\classes\http_client.php on line 330

Warning: fsockopen(): unable to connect to www.ups.com:80 in c:\web\catalog007\includes\classes\http_client.php on line 330

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According to the code documentation available at oscdox guide, http_client.php page is:

"Referenced 2 times:

* /includes/modules/shipping/ups.php -> line 247
* /includes/modules/shipping/usps.php -> line 223"

I have never even opened any of the above 3 files. However I did install the Royal Mail Uk contribution [URL: http://www.oscommerce.com/community/...rch,royal+mail ]. This contribution actually installs 3 shipping modules.

After getting the above warning, i uninstalled the 3 uk shipping modules of the royal mail contribution and then reinstalled them. I dont get the error now. But I am curious to know why did I get that error in the first place.