I have a wordpress multisite 3.6 with 1 main site and 5 subdomains(with mapping domains) I am tried to make it faster, i install the W3 Total Cache plugin i add on my apache the APC 3.1.13 yum ...
I plan to host up to 1000 sites for a large non-profit. Each site could get quite a bit of traffic. What is the ideal setup? VPS, *ngix, mem-cache etc?