Dear all

I came along a disturbing feature and I would appreciate to get your lights on 
this.

After rebuilding our data server, plenty of access rights have been changed and 
various folders have been ‘secured’ by restricting access to few users and 
groups. The whole ccp4 suite has also been subjected to this new policy; no 
writing in the folders and in sensitive files can be done anymore by unknown 
users. Good to feel safe :D

Now, when running Refmac5, we came up with plenty of complains about library 
files not readable, or more specifically some library files that ‘failed to 
open’. After few juggling around, we understood what was wrong: all the 
involved library files needed to be ‘writable’ to be properly read.

Here is therefore my disturbing piece: why would you need to be able to write 
in a file if you just want to be able to read / execute it? I don’t think that 
this is a bug, but rather a feature, and would like to understand the logic 
behind it.

Please note that I did not check how other programs responded, nor other 
versions of the suite (I am on the latest CCP4 release). I haven’t deeply 
screened the bb either for a potential previous notice on this.

Cheers, Leo

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Leonard Chavas
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Mailing address:
Center for Free-Electron Laser Science (CFEL)
Deutsches Elektronen-SYnchrotron (DESY)
Notkestrasse 85. Bldg 99
22607 Hamburg, Germany
Room 03.051
Phone : +49 (0)40 8998 6384
Mobile: +49 (0)40 8998 96384
-
E-mail (DESY) : leonard.cha...@desy.de
E-mail (CFEL) : leonard.cha...@cfel.de
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