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NATS is very efficient on server load so if your program is smaller you can absolutely run everything on one server for starters. I would still recommend 4G of RAM and the use of second level domains (or seperate ones) so that you can eventually seperate this out onto two servers easily. NATS is so efficient that you could run this on a regular P4 with SATA drives if you need to although I would recommend at least a dual Xeon for being pro-active and SCSI/SAS drives would take you even farther.
Cheers,
Brad
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President at MojoHost | brad at mojohost dot com | Skype MojoHostBrad
71 industry awards for hosting and professional excellence since 1999
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