I have a development machine where I have subvserions projects checked out, so my user account has ownership permissions for those files. However, they are websites, and sometimes the apache user (www-data) needs to write to the directory (temporary files, uploads, etc.).
I'm not so familiar with Unix permissions, but when I give ownership to one, the other can't write. How can I get it so that both can write to the directories? (I've changed permissions to 755 for all the dirs.)