... Bastille is written specifically to Red Hat Linux and Mandrake Linux. The specific Red Hat/Mandrake content has beengeneralized, and hard-code filenames are now represented as variables.These variables ... down-load and install the security upgrades to avoid denial-of-service (DoS)and intrusion attacks that can result from these weaknesses. For example, a security update can be downloaded for a vulnerability ... file, an e-mail is automatically sent to the administrator, indicatingthat an unauthorized user is accessing the system.Once a user logs in to sudo, a ticket is issued that is valid by default...