Ulim is a Linux kernel module which enforces resource limits on every process in the system. There are already solutions like pam_limit, but there are some places where the user can execute his programs, but PAM is not used (for example .forward or .procmailrc files, or CGI scripts). Ulim works in the kernel and sets the limits whenever a process changes its real UID, so every process run by a user will have the correct limits.
