Just changed the server’s Apache model from Prefork to Worker. Should be easier on the memory and the CPU, but after downloading/installing it (via aptitude) nothing worked anymore. PHP works different under the Worker model, so directories need an extra handler and options. No biggie, read this thread.
The problem of self-thinking repositories like Ubuntu has (this server runs Ubuntu) is that you cannot always upgrade to the latest version of the software you use, without doing a OS-upgrade. I cannot upgrade WordPress any further because I cannot update PHP to the minimum required version. It’s not in the repositories.
So, I guess this is the point where I have to say: the 32-bit Ubuntu installation running on 64-bit hardware is long overdue its update, mainly because the upgrade means: complete re-installation. You cannot upgrade 32-bit to 64-bit. Perhaps later this week. I’ve got a spare 1TB disk here, now all I have to decide is which distro it’s going to be. Ubuntu again, or perhaps OpenSuSE like my desktop?