|Communications Access Methods for SAS/CONNECT and SAS/SHARE Software|
|System and Software Requirements for SAS/CONNECT|
Using the TELNET access method, you can connect to any supported platform that is on the TCP/IP network, and that is running a SAS release that has the corresponding access method support with SAS/CONNECT properly licensed.
Verify the following:
Although the remote host does not have to run a TCP/IP product that SAS supports, it must run some type of TCP/IP product to allow its node to be accessible through TELNET.
In those cases where your local host has a supported TCP/IP package but your remote host does not, you can use TELNET to establish a connection.
If you have a choice of using either TCP/IP or TELNET, you are encouraged to use TCP/IP. TELNET support is provided primarily for sites in which the local host has an installed TCP/IP product, but the remote host does not.
|Local Host Tasks|
|Configuring Local and Remote Host Names and Internet Addresses|
You must specify the names and Internet addresses of the local and remote hosts in the HOSTS file or through the name server. A name server program supplies name-to-address translation, mapping from domain names to IP addresses. The name server often runs on a dedicated processor, and the host itself is referred to as the name server.
The format for a HOSTS file entry follows:
Internet-address host-name optional-alias
172.20.10.200 monarch local 172.20.10.201 omega remote
|Specifying the TELNET Communications Access Method|
You must specify the TELNET communications access method to make a remote host connection. Use the following syntax:
where COMAMID is an acronym for Communications Access Method Identification. access-method-id identifies the method used by the local host to communicate with the remote host. TELNET is a terminal application interface that uses the TCP/IP protocol.
Alternatively, you may express this OPTION statement in a SAS invocation or in a SAS configuration file.
|Specifying the Remote Node Name|
To make a connection from a Windows local host to a remote host, use the following syntax:
Alternatively, you may express this OPTION statement at a SAS invocation or in a SAS configuration file.
If you use an Internet address (or some other invalid SAS name), you must assign the address to a macro variable and specify the macro variable for the value of the REMOTE= option, illustrated as follows:
%let node=internet-address; options remote=node;
Do not choose a macro name that is also a valid host name on your network. SAS first attempts to reach a network host with the value of the REMOTE= option (in this example, MYNODE).
%let mynode=172.20.10.200 options remote=mynode;
|Identifying a Script File for Signing On and Signing Off|
To use one of the sample script files that is supplied with SAS/CONNECT for
signing on and signing off, assign the RLINK fileref to the appropriate script
file, based on the remote host that you are connecting to. The sample scripts
are installed at !sasroot
\connect\saslink. You must
customize the sample scripts to accurately reflect your site's logon process.
Failure to do so will produce errors.
The FILEREF syntax follows:
FILENAME RLINK '!sasroot\connect\saslink\script-name';
where script-name identifies the script that corresponds to the remote host that you want to connect to.
The following table lists the scripts that are supplied by SAS Institute:
|Remote Host||Script Name|
|CMS (using full-screen 3270 TELNET protocol)||TCPCMS32.SCR|
|OS/390 (with TSO)||TELTSO.SCR|
|OS/390 (using full-screen 3270 TELNET protocol)||TCPTSO32.SCR|
FILENAME RLINK '!sasroot\connect\saslink\teltso.scr';
Note: The value for the COMAMID option in the sign-on script
at a SAS invocation must be set to RASYNC.
|Signing On to the Remote Host|
To complete your sign on to the remote host, enter the SIGNON statement, as follows:
|Local Host Example|
The following example illustrates the statements that you specify in a Windows local host SAS session to connect to a remote host with the TELNET access method:
filename rlink '!sasroot\connect\saslink\telcms.scr' options comamid=telnet remote=rmtnode; signon;
The first line identifies the script file that you use to sign on to a CMS remote host. The script file prompts for a userid and a password that are valid on the remote host. The TELNET communications access method is declared with a connection to the remote host RMTNODE. The SIGNON statement performs the sign-on process.
|Remote Host Example|
SAS Institute does not provide support for connections to the Windows remote host with the TELNET access method.
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Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.