THANK YOU everybody for your advices. finally, with :
chown user:group dir , and chmod 1777 dir , it seems to be working. i will consider later the /tmp permission structure. tests are always the best way to understand a system ! Marc -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list