I can’t use telnet to login my qnx system after one week,though ftp is ok,who knows the reason? the hardware is pc/104
What happens when you telnet to your system? Do you get a login prompt at all, or nothing?
nothing,it said “telnet is closed by remote side”
Try running syslogd on the target to see if anything’s logged
(see /etc/syslog.conf).
Is it some sort of embedded target?
Do check syslog, but it sounds to me like telnetd was started, and decided not to communicate. This could be related to the passwd, group, and shadow files. You might want to check and see if they are all there, and have the proper permissions.
You might also want to try starting telnetd manually to see what happens.