Description:
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Using mysql_connect, or mysql_pconnect to an IP address, it takes too much time! (4 seconds to connect!)..it could be an reverse lookup problem...if u add an entry on "Hosts" file, and u reference to this entry, it fly! (like pelanne says in his post: http://ar2.php.net/manual/es/function.mssql-connect.php#53620)

Reproduce code:
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$link = mssql_connect("10.0.0.1,1044", "user", "Pass");

Expected result:
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the same result, but faster

Actual result:
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slow connection :)