Help for Telnet Access


Description of the information displayed

The Telnet Access page displays the list of access control entries used to limit telnet access to the system. The current list of entries is displayed when the page is first displayed.

Access to telnet is controlled at two levels:

The list of allowed hosts is defined by the displayed list of telnet access control entries. If no access control entries are defined, access is allowed from any system in the network. Access is denied any system that is not explicitly allowed access in the telnet access control list.

The service used to enforce the rules is TCP wrappers (tcpd). The telnet access control list actually displays the list of entries in the TCP wrappers /etc/hosts.allow configuration file for the telnet service. The TCP wrappers /etc/hosts.deny configuration file denies access to all services and hosts not specified in the hosts.allow file (the hosts.deny file contains the entry 'ALL : ALL').

This access list only controls telnet access to the system.


Description of the buttons and actions available

add Click this button to add a new access control entry to the end of the access list.
edit Click this button to modify the selected access control entry. You must select an access entry before selecting this button.
delete Click this button to delete the selected access control entry from the access list. You must select an access entry before selecting this button.