/etc/nologin removed during reboot by shutdown script.
inetdand the names of the files correlate to the service.
/etc/xinetd.conffile contains general configuration settings which effect every service under
xinetd's control. It is read once when the
xinetdservice is started, so for configuration changes to take effect, the administrator must restart the
xinetdservice. The following is a sample
/etc/xinetd.d/directory contains the configuration files for each service managed by
xinetdand the names of the files correlate to the service. As with
xinetd.conf, this directory is read only when the
xinetdservice is started. To gain an understanding of how these files are structured, consider the
hosts.deny(in that order) to determine if the client should be allowed to use a given service.
/etc/hosts.allowcauses only telnet connections from 192.168.x.x ip range accepted.
/etc/hosts.denycauses telnet connections from 192.168.x.x ip range denied , but telnet connetions would be accepted from any other addresses.
after changing these files, xinetd should be restarted