Subject: Re: proposals for running named in a non-root chroot cage
To: Steven M. Bellovin <>
From: Andrew Brown <>
List: tech-security
Date: 03/08/2001 21:08:21
>>>>>	- change the build system to populate /var/named/ by default
>>>>>	  (with named-xfer, the example etc/namedb, ...)
>>>>...named-xfer would be installed in /var/named/usr/libexec/named-xfer
>>>>and a symlink would be put at /usr/libexec/named-xfer?
>>>	or, every time before named startup, copy /usr/libexec/named-xfer
>>>	into /var/named/usr/libexec/named-xfer.
>>that might be a bit heavy.  running cmp (or diff) would be heavier,
>>but checking that the mtime and size were the same (if copied with -p)
>>would probably be sufficient.
>Those are easy to fake.  Run md5 on it, and compare to the stored md5 
>checksum of the original.

true.  but running md5 on the old one and the new one would be more
expensive than a simple cp.  perhaps cp is the way to go...

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