I've got the Enterprise Linux (Centos) running on a Dell 1425SC with two Xeon processor and 4 gigabytes of memory. I'm also serving DHCP for our network and serving about 19 thin clients that are PXE booting to the K12LTSP server. When I first started the server last month I was using about 240 MB of RAM and today I noticed that was up to over 2 gigabytes of RAM. I recently ran "up2date" and updated the kernel and all packages. I am running the smp kernel. How can I keep my memory free? Any suggestions? Thanks, Don "Do not go where the path may lead, go instead where there is no path and leave a trail"--Ralph Waldo Emerson Don Watkins, Technology Director Franklinville Central School Tel: 716-676-8004 Mobile: 716-474-5675 This message may contain confidential information. It is intended for the use of the addressee only. Unauthorized use of this e-mail may be unlawful.