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Talk:Secure chroot Barrier
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# setattr --barrier /vservers # showattr /vservers *NOTE: when setting xattrs on reiserfs, please not that the filesystem has to be mounted explicitly with 'attrs' option, i.e.: mount /dev/reiserfsdev /vservers -oattrs to get the barrier survive after umount/reboot. Seems insufficient. You need to set --barrier for every existing and NEW directory except those below /vservers/. as the suggested command protects only against chdir .. Why? The fchdir. Am I right? once you gain root inside the scure chroot: may you gain access to the device node? i/o ports not restricted? # Accoring to http://oldwiki.linux-vserver.org/Step-by-Step+Guide+2.6: "On Linux 2.6 this isn't really necessary, since another mechanism is used to lock in the guests anyway" - maybe someone could elaborate on this and put it in the article, please
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