If you can not seem to get any of the CUPS clients to print to
your CUPS server, you may have forgot to install cups-lpd.
yum install cups-lpd
You may have also forgot to configure t:
-----> EL6:
Edit /etc/xinetd.d/cups-lpd and change "disabled" to "no":
# default: off
# description: Allow applications using the legacy lpd protocol to
communicate with CUPS
service printer
{
disable = no
socket_type = stream
protocol = tcp
wait = no
user = lp
server = /usr/lib/cups/daemon/cups-lpd
}
Get xinetd's PID:
ps ax | grep -i xinetd
if not running, start xinetd:
/etc/rc.d/init.d/xinetd start
if running, do a kill with a SIGHUP on xinetd to reread this file:
kill -SIGHUP pid_xinetd
-----> EL7:
Xinetd: if you installed it just for cups-lpr, then remove it:
# rpm -e xinetd
Otherwise, if you need xinetd, remove
/etc/xinetd.d/cups-lpd
and restart xinetd with
# service start xinetd
# systemctl enable cups-lpd.socket
# systemctl start cups-lpd.socket
