I'm confused. I have two users in system: u1 and u2, and group u1. both u1 and u2 belong to u1. I've created directory /opt/d with properties:
drwxrwxr-x 2 u1 u1 512B May 26 17:55 d
AFAIK, this configuration allows both users write to directory. But, from u2:
touch: /opt/d/x: Permission denied
And same configuration on RHEL5 works fine.
What i've missed?