HI, We are going to hire a server and going to use GDAL/OGR .Can any one help me to select the best one from the following. 1. Red Hat enterprise 4 2. Red Hat enterprise 5 3. Cent OS 4 4. Cent OS 5 Also if i want to use FWTools installer please tell me for which of the above OS it is supported. Best Regards, N.Vidhiyadharan