What does it take ?
lots of memory + fast disks
otherwise simple systems, e.g.
- Intel CPU + Linux/FreeBSD
- 266MHz P2, 512MB memory, 40GB disk
- handles 2.5M accesses/day at Australian ISP
- 64MB, 1GB fine for 100K/day (department/small site)
- unix workstation(s)
- 2xDECAlpha, 320Mb memory, 8Gb disk (Cardiff)
- dedicated hardware
- probably only needed for large ISPs
squid cache software is free!