William Hooper wrote:
John Ziniti wrote:
I'm looking at some strange behavior on a _very_ barebones
installation. I'd like to get some feedback on possible logical
explanations.
* What I'm seeing: The md5sum of all of my binaries in
/usr/bin and /usr/sbin are changing exactly one hour
after installation of CentOS-4.3.
man prelink
Aha! Well, the good news is that you are, of course, right and
there is a logical explanation for this after all (Whew!).
The only bad news I guess, is that I've wasted so much time
looking for a mysterious problem that isn't there :-/
Just for posterity, the following was what I used to verify
that the changes were from prelinking:
# prelink --undo /usr/sbin/lsof
# md5sum /usr/sbin/lsof
The md5sum from that last command gave me the result I
desired. Re-running prelink on /usr/sbin/lsof gives me
the "foreign" md5sum again. I guess I'll just have to prelink from
now on before I initialize tripwire.
Thanks a ton, William. If you're ever in Boston, I owe
you a [ affordable beverage of your choice ].
- JZ
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