Re: OpenBSD
justina colmena ~biz <[email protected]> Tue, 24 May 2022 17:35:05 -0800
| Newsgroups | gmane.os.openbsd.advocacy |
|---|---|
| Message-ID | <[email protected]> |
Curse of the disappearing documentation, SWAT team hits and police raids on= the homes of mailing list posters. The drugs have got to go and the securi= ty's got to come back or we're all doomed. But right because it is still possible to rename "/etc" and change the path= to the "schg" immutable file -- but the rules for "schg" and "uchg" are di= fferent from what I recall, when "uchg" required root to set or clear, but = was resettable without rebooting, and "schg" could be set by root, but requ= ired a reboot to single user mode to clear. On May 24, 2022 5:13:47 PM AKDT, Theo de Raadt <[email protected]> wrote: >That is either a funny joke, or it shows you don't understand Unix. > >It doesn't work because, root is all-powerful and will simply replace >the whole /etc directory with tar cf - | tar xf -, and look at that >the file you locked is in an irrelevant directory > >justina colmena ~biz <[email protected]> wrote: > >> Glad this was mentioned. You can go like this I think >>=20 >> [OpenBSD] # chflags schg /etc/resolv.conf >>=20 >> and that is irreversible until the system is rebooted to single user mod= e. In Linux (ext2-3-4) one would use a similar command, but the system-leve= l version is apparently not available. >>=20 >> [Linux] # chattr +i /etc/resolv.conf >> [OpenBSD] # chflags uchg /etc/resolv.conf >>=20 >> But this is really an upstream "dhclient" issue of this particular file = being overwritten in a context of persistent hacking with a German-style la= w-enforcement or law-enforcement-like access which can be enabled on a warr= ant and of course re-enabled whenever it is shut off by the user or consume= r of the said Operating System. >>=20 >>=20 >> On May 23, 2022 9:36:53 PM AKDT, Richard Bostrom <bostrom.richardh@iclou= d.com> wrote: >> >Dear sirs and ladies!May I please ask. Is there any way to force OpenDN= S settings on a BSD installation, in such a way that the "su" cannot change= the dns settings (.conf file)?Thank you.Best regards >> >Richardh Bostrom >> --=20 >> Sent from my Android device with K-9 Mail. Please excuse my brevity. > --=20 Sent from my Android device with K-9 Mail. Please excuse my brevity.=