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Refer to the descriptions of the following parameters:
A general name is a port group name that NCS recognizes. Most third-party NASI applications are written to the NASI specification that supports general names defined with eight or less characters. Remote access, however, supports group names that have up to 15 characters. To enable the third-party NASI applications to recognize the group names, you must create a list of general names that have no more than eight characters. Refer to Support for Dial-Out Nodes for more information about NASI.
Use of the shared DIALIN port enables multiple remote control hosts to share ports and prevents a single user from holding up a line.
Remote access automatically creates the general name DIALIN, which includes all ports defined for dial-in usage. The specific name of the ports in the DIALIN group has the form NCSname DIALIN, where NCSname is the first eight letters of the remote access server name or the alias server name.
NOTE: If your access or alias server name is less than eight characters, underscores are used for the remaining characters. For example, FS1_ _ _ _ _DIALIN. The first eight characters of the server name are used by default. Refer to the section Server Alias Names for information on alias server names longer than eight characters.
When remote control hosts select the specific virtual port NCSname DIALIN, dial-in users using NASI, Win2NCS, or Mac2NCS share all available dial-in ports. If remote control hosts acquire a non-DIALIN port, the workstation owns the port and cannot share the port with other users. The port is free for other users only when the network workstation disconnects the port. Refer to Support for Dial-Out Nodes for more information about NASI.
A modem-independent group enables you to group modems from different vendors under a single group. The modem-independent feature is implemented by emulating the AT Commands set from a small set of industry-standard modems. All modem commands for the ports that belong to a modem-independent group are handled the same way.
The general advantage to using the modem-independent group is that the user does not have to know the modem type being used so that NASI applications can specify Hayes Compatible. Another advantage is that you can set dial-out restrictions only for a modem-independent group. In addition, the numbers that users of modem-independent groups dial out to appear in the audit trail. However, a disadvantage is the limited support of the Hayes command set.
HINT: Group similar modems together in a modem-independent group. For example, you can group all V.34 modems. However, do not group a 2,400-bps modem with 28.8-Kbps modems.
However, NASI, Win2NCS, or Mac2NCS applications on a network workstation can modify the port settings (data rate, parity, data bits, stop bits, and flow control) of the ports in a modem-independent group. The remote NASI application user must specify Hayes Compatible for modem type.
Notify the NASI, Win2NCS, or Mac2NCS user of the highest data rate supported by the modem-independent group. The highest data rate supported is the speed of the slowest modem in the group. A NASI, Win2NCS, or Mac2NCS application on a network workstation must not have its data rate configured higher than the speed of the slowest modem in the group.
When using the modem-independent group, a NASI, Win2NCS, or Mac2NCS applications user should specify Hayes Compatible for the modem type. The default port settings are configured based on the modem type you select in NIASCFG. For more information, refer to Port Configuration.
NOTE: Specifying Hayes Compatible in your NASI, Win2NCS, or Mac2NCS application does not mean that your connection is set for 2,400 bps. Typically, users might experience a short connection delay as remote access translates between the generic modem command and the actual modem commands.
The default port speed is set when remote access initializes the port. The port settings are configured on the remote access server using NIASCFG.
If a remote access server name has more than eight characters, NASI truncates it and displays the first eight characters. A problem arises if two or more remote access servers on the network have the same first eight characters. To overcome this limitation, NCS allows you to specify a unique alias server name of eight or less characters.
The NCS dial-in security applies to users dialing in through the Service Selector (using the shared DIALIN port) to access dedicated remote control host sessions on the network. The default requires users to specify the Remote Client password. If NCS dial-in security is disabled, users are prompted only for the username.
NASI security applies to network workstation connections to an NCS port. The default requires users to specify the NetWare password. If NASI network security is disabled, users are not prompted for a username or password. This applies only to workstations using the NASI DOS TSR. Win2NCS workstations must always specify the NetWare password.
Whenever a user starts an application that supports the Command Interpreter (CI), NASI displays the CI prompt. Refer to the Novell Internet Access Server 4.1 remote access online help for more information on the commands that can be used at the CI prompt. The default prompt looks like this:
nasi 1:1>
The default CI prompt contains the following elements:
Some third-party applications provide a method for connecting to the communications ports. With other applications, the user must rely on the CI or write an application using the NASI Basic functions that accept CI commands.
The CI enables users to issue commands that control access to the NASI Application Programming Interfaces (APIs). For example, users can list the available resources on the network, connect to a particular communications port, and set parameters for communicating with that port. For more information, refer to the Novell Internet Access Server 4.1 remote access online help.
Break duration is the elapsed time that a break signal is sent to the remote host computer. Generally, break signals are used in time-sharing systems that require a signal to initiate login.
The default value is 0.55 seconds. Some systems require a specific amount of time for the break signal to expire. The default value ensures maximum compatibility between applications. Keep the default value or change the value, depending on the application. Refer to the documentation that came with the application.
To start configuring for NCS, complete the following steps:
Select Configure Services from the Remote Access Options window.
The Remote Access Services window is displayed.
Select NCS.
The NCS Configuration Options window is displayed.
Select General Name List and do the following to specify a general names list.
A list of general names is displayed. Initially, the default group name ANY_PORT is displayed. This group contains all remote access ports.
You can select, insert, or delete a general name. Deleting a general name deletes the name from the list but retains it in the port groups list.
IMPORTANT: Selecting a general name displays its group members, which you can add or delete. To add a group member, press Ins, and a list of other ports is displayed. To delete a group member, move the member to the other ports list.
Press Ins to display additional port group names.
Select a port group to add to the list of general names, or press Ins to create a new port group and add it to the port groups list.
Press Esc to save your changes.
The group members in the general names list are the only ports that NCS recognizes (with the exception of the DIALIN group).
Select General Name for Shared Dial-In Ports, then press Enter and modify the name.
For example, you can modify the general name to INBOUND or REMCTRL (for remote control).
WARNING: Users should not select the DIALIN general name for dialing out to bulletin boards or host computers.
Select Modem-Independent Group, then do the following.
A list of known port groups is displayed. If this list is empty, you must create a general names list as described in Step 3.a through Step 3.c.
IMPORTANT: Do not select a group with X.25 ports.
Select Alias Server Name, then enter a unique server name of eight characters or less.
Select Enable NCS Dial-In Security, then specify Yes to require remote users to enter the Remote Client password.
If this parameter is disabled (No), users will be prompted only for their usernames.
IMPORTANT: If security is enabled, you must specify Remote Client passwords for users who are dialing in. For information about specifying Remote Client passwords, refer to Setting Remote Client Passwords.
Select Enable NASI Security, then specify Yes to require LAN users to enter a NetWare password.
If this parameter is disabled (No), users will not be prompted for their usernames or passwords when they bring up NASI on their workstations. Disable this parameter if you do not want NASI workstations to be prompted for a password. This applies only to workstations using the NASI DOS TSR. Workstations using Win2NCS must specify a password.
IMPORTANT: If this field is disabled on a single remote access server, make sure you disable this option on all other remote access servers on the network.
Select Command Interpreter Prompt, then enter a new NASI prompt.
The new prompt does not take effect until the next time you start the NCS service.
Select Break Duration, then enter a new value.
The default is 0.55 seconds. Some systems require a specific amount of time for the break signal to expire. The default value ensures maximum compatibility between applications. Refer to the application documentation to determine the correct value.
Press Esc to save your changes.
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