My employer has offered to send me on a couple of training courses and I'm just looking for some recommendations.
I'm mainly looking to improve my security and general sysadmin skills. I would like to do something focused on UNIX as I mainly work with Linux boxes (but also a couple of FreeBSD boxes).
I don't want to do a study-from-home course, so I would need to find somewhere based in London.
It would be great to hear from anyone who has some experience with this kind of course.
The courses I've found so far are:
I'm not sure the City University courses are advanced enough as I already have experience...