Michael Orlitzky <m...@gentoo.org> wrote: > On 09/06/2015 04:15 PM, walt wrote: > > https://wiki.gentoo.org/wiki/Hardened_Gentoo > > > > That wiki page is very seductive. It makes me want to drop > > everything and select a hardened profile and re-emerge everything > > from scratch. > > > > But I have a feeling I'd soon be in big trouble if I did. Is this > > something that only gentoo devs should be messing with, or is this > > a project that a typical gentoo end-user might hope to accomplish > > without frequent suicidal thoughts? > > It depends on how many hardening features you want to enable. It's a > lot easier than it used to be because there's a kernel config thingy > that lets you pick safe options without understanding all the > details. You can get a lot of protection for very little risk by > enabling pax/grsec and checking a few boxes in the hardened kernel > config. > > Just beware that there are kernel options that will clobber things > like cpupower and others that will slow down specific programs like > clamav with JIT. Anyway, we're all here because we like to tinker > with things until they're broken, right? Give it a try and be sure to > read the kernel help pages carefully and have fun. You can always > switch back to a non-hardened kernel and everything will go back to > normal.
I don't think so (but maybe I'm wrong). You have to compile your entire system with a hardened toolchain to get full hardened support (SSP and maybe some other things). I think, to go back to a "normal state", you have to recompile everything again with a non hardened toolchain. -- Regards wabe
