[Mailman-Users] Permissions problem accessing commands via php

[Dave B]

I am trying to create some php forms that use the shell_exec function 
to run some of the Mailman command line commands. i.e. I have a script 
that lets an admin user enter an email address and then uses the 
find_member script to return all lists that email address is in. To do 
this I had to set the permissions on the config.pck files to 664 (I am 
the only one with shell access to the server).

This works fine except that for some reason the permissions will 
sometimes revert back to 660 and then the script won't work. Only one 
config.pck file has to have 660 permissions for the script not to work. 
When I change that particular file back to 664 - the script works 
again. ANy ideas on what would cause the permissions to change back to 
660?

I would also like to be able to add members or remove members etc using 
this method but I get permissions errors even if I change the 
permissions to 666 on all the files in particular list directory. Any 
ideas on what I would need to do to be able to do this?

Thanks for any help on this one.

Dave Bevis