I have installed Firestarter firewall and it seems there is a known bug when installing it on Ubuntu 11.10. According to the Firestarter web site, the etc/rsyslog.d needs to be edited. However I am not able to save the edited file because I don't have permission to do so. I tried right clicking on the file to change the permissions but that didn't work. Can anyone tell me how to gain root (su) access to this file? Thank you in advance.