try-from - test program for the tcp_wrapper
command can be called via a remote shell command to find out
if the hostname and address are properly recognized by the tcp_wrapper
library, if username lookup works, and (SysV only) if the TLI on top of IP
heuristics work. Diagnostics are reported through syslog
redirected to stderr.
rsh host /usr/sbin/try-from
Wietse Venema, Eindhoven University of Technology, The Netherlands.