ttyrpld 2.60 Description:
ttyrpld is a Kernel-based keylogger and screenlogger for Linux, FreeBSD and OpenBSD, and includes a real-time, tail-following log analyzer. ttyrpld supports most tty types, including vc, bsd and unix98-style ptys (xterm/ssh), serial, isdn, etc. Being implemented within the Kernel makes it unavoidable for the default user. Another benefit is that it runs with no overhead if the user-space logging daemon is not active.