Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 936

Telnet To use Telnet with SSH, first enable SSH, as previously described. By default, the Telnet daemon is enabled. If you want to disable the Telnet daemon, use the following command, or disable Telnet in the startup config. To enable or disable the Telnet daemon, use the [no] ip telnet server enable command. Example of Using Telnet for Remote Login Dell(conf)#ip telnet server enable Dell(conf)#no ip telnet server enable VTY Line and Access-Class Configuration Various methods are available to restrict VTY access in the Dell Networking OS. These depend on which authentication scheme you use - line, local, or remote. Table 80. VTY Access Authentication Method VTY access-class support? Username access-class Remote authorization support? support? Line YES NO NO Local NO YES NO TACACS+ YES NO YES RADIUS YES NO YES The system provides several ways to configure access classes for VTY lines, including: • VTY Line Local Authentication and Authorization • VTY Line Remote Authentication and Authorization VTY Line Local Authentication and Authorization The system retrieves the access class from the local database. To use this feature: 1. Create a username. 2. Enter a password. 3. Assign an access class. 4. Enter a privilege level. You can assign line authentication on a per-VTY basis; it is a simple password authentication, using an access-class as authorization. Configure local authentication globally and configure access classes on a per-user basis. The system can assign different access classes to different users by username. Until users attempt to log in, the system does not know if they will be assigned a VTY line. This means that incoming users always see a login prompt even if you have excluded them from the VTY line with a deny-all access class. After 936 Security