My website running WordPress is getting about 45,000 unique visitors daily.
Because of the high traffic, I had to get a dedicated server. Even with 2GB memory dedicated server and wp-cache plugin, it's still crashing.
I believe the theme and plugin might have caused some problems so I got an expert in PHP and WordPress to optimize the code for me. It's has just started the optimization...
My question is, what is the best dedicated server configuration for WordPress? What kind of server software to install so it'd speed up WordPress?
Please try to be specific. Thanks.