kernel panic scsi_wait_scan on elrepo kernel-ml

Browsing around ELRepo, you can see they have the elrepo-kernel repository which contains the long-life kernel-lt (currently 3.10) and mainline kernel-ml (currently 3.14) packages.

I'd always been curious about these, so I spun up a test VM and did a CentOS 6 Basic Server install, then added ELRepo and installed them.

kernel-lt works fine first time.

However, kernel-ml will not boot, and simply repeats:

FATAL: Module scsi_wait_scan not found.

hosting http and https domains with lighttpd

I have two domains, one with an SSL certificate and one without. I wanted to host these on the same lighttpd server which only has one IP address.

There are several forum threads and lighty wiki articles about this, but none really cover a concise example of how to do it. Many parts of the documentation are confusing and non-obvious, the situation is not helped by the fact that you cannot do name-based SSL hosting, so what you'd expect to be the logical configuration doesn't work.

After staring at these for a few hours:

• Documentation: Module: mod_redirect
• How to redirect www
• How to redirect http to https 
• Simple SSL configuration
• Documentation: Secure HTTP

And a lot of trial-and-error, here's the config I ended up using:

realtek RTL8188CUS slow on Raspberry Pi

I recently had an adventure troubleshooting slow wifi on one of my Raspberry Pi systems. No matter what I did, I could not get more than 57 kilobytes per second transfer speed to it.