Since Apache version 2.2, the LDAP authentication module is no longer called auth_ldap, but rather authnz_ldap. During a migration of an Apache 2.0 to Apache 2.2, I ran into some problems which caused a failure to start Apache.
Only one country where you can see screw-ups like these:
Ever tried setting up netconsole under Linux, but never received anything from the kernel log on the machine configured as target in the netconsole module? Check the kernel.printk setting in sysctl.
Geez... Today one of the mail servers I'm maintaining seems to be blacklisted in the uceprotect blacklist. I had never heard of them until now. And I must say, the guys at uceprotect really think they are the Gods of mail or something. If you want to get yourself removed from this list, you either have to wait 7 days - given that your server's IP address doesn't connect to their trap again. Or, you could pay these sons of bitches 50€ (per IP!!!) to get unlisted immediately. This is totally unacceptable, who the hell do they think they are???
Recently I needed to boot a Dell server (PE1950) from a USB flash drive. The flash drive contained a bootable image from the CentOS 5 DVD (images/diskboot.img), to run the CentOS installer, and kickstart the machine over the network. When cold booting these machines (eg. from a power down state), there is no problem at all. I simply hit F11 to enter the boot menu, choose the Front USB flash drive that shows up in the menu, and the machine starts booting - no problem here.