Login Service
The NETServer uses the service specified here to connect users not in the user table to the port default host. Users with user table entries will not use this setting. This setting will never be used if security is set to on. The Default login service for a port is PortMux. Note that this is different from the default for an individual user (Telnet). Use the following command:
set s<port #> service_login <telnet rlogin netdata portmux> <TCP port #>
<TCP port#> is the service port of the Login Service you selected in the previous field. We recommend that you leave this set to the Login Service’s default service port: Telnet (23), Rlogin (513), Netdata (6000), and PortMux (1642). Note that you cannot change the PortMux service port from its default.
The service selected can be one of the following:
Telnet | Supported by most TCP/IP computers, Telnet lets |
| the user log in to hosts that support it. If you set a |
| terminal type, Telnet will pass that information |
| along. Otherwise, it negotiates a standard, Net- |
| work Virtual Terminal interface. |
Rlogin | Although Rlogin was originally a (BSD) UNIX only |
| protocol, it is now supported by some |
| machines as well. Unlike Telnet, Rlogin allows a |
| user logged into a host, to access their accounts on |
| other (trusted) hosts without reentering a pass- |
| word. Rlogin requires that you specify a terminal |
| type. |
PortMux | (Default) PortMux is similar to Telnet except that it |
| multiplexes many Telnet sessions into a single data |
| stream that’s more efficient to transmit and requires |
| fewer connections. PortMux requires that the host |
| be running a special PortMux daemon (in.pmd). |
| Note that this daemon also allows the host to use |
| NETServer ports set to Host Device as pseudo |
| TTYs (See Chapter 7). A UNIX version of the |
| PortMux daemon is available on the U.S. Robotics |
| web site. |
