On Thu, Mar 21, 2013 at 4:52 PM, Michael Kerrisk (man-pages) <mtk.manpages@xxxxxxxxx> wrote: > Hi Serge, > > On Fri, Mar 15, 2013 at 4:38 PM, Serge Hallyn <serge.hallyn@xxxxxxxxxx> wrote: >> Hi, >> >> you mention that after creating a new user namespace you at first have >> all capabilities in the new ns. You don't explicitly mention (or I >> missed it - I did see the mention of securebits) that if you want to >> keep those capabilities after doing an exec, you need to first have >> something mapped to uid 0 in the userns, and do setuid(0). > > Good point. I'll add something on that. > >> You might not want to list manpages from other projects, > > Actually, not a problem. Many of the pages in my set already do this. > >> but Eric's >> shadow patches introduce some good new manpages as well. Those aren't yet >> accepted upstream, but if/when they are then mention at least of >> subuid(5), subgid(5), and newuidmap(1) and newgidmap(1) might be good. > > I'll add those. > > Cheers, > > Michael Can we please also document which capabilities are useless within an user namespace? E.g. CAP_MKNOD. You get this capability but the kernel always checks it against the initial userns. Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
