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