POLARIS NETWORK SETUP FOR MACINTOSH NCSA TELNET

Network Config hints for Macintosh

NOTE:

In the following suggestions and hints, assume that your assigned fully-qualified hostname for your machine is "myhost.mf.espo.nasa.gov", and your assigned IP address is 198.120.56.25. Consult the table of assigned hostnames and IP addresses to find your actual unique values for these two items and use them. The other configuration parameters are shared by all hosts. They are:


Moffett Field

  Netmask:  255.255.255.0
  Broadcast IP address:  192.150.34.255
  Gateway IP address:  192.150.34.100

  DNS Nameserver hosts:
    cloud1.arc.nasa.gov  128.102.154.176
    mx.nsi.nasa.gov  128.102.18.31

Fort Wainwright

  Netmask: 255.255.255.0
  Broadcast IP address: 198.120.56.255
  Gateway IP address: 198.120.56.1

  DNS Nameserver hosts:
    cloud2.polaris.espo.nasa.gov   198.120.56.42
    cloud4.polaris.espo.nasa.gov   198.120.56.43

Barbers Point
 
  Netmask: 255.255.255.0
  Broadcast IP address: 198.120.15.255
  Gateway IP address: 198.120.15.1
 
  DNS Nameserver hosts:
    cloud4.bp.espo.nasa.gov   198.120.15.43

Where to get NCSA Telnet for Macintoshes

Anonymous ftp site:  ftp.ncsa.uiuc.edu
Directory:           /Telnet/Mac/

Version 2.7 is the latest (and reportedly the final) Mac version of NCSA Telnet. We recommend version 2.6, because it includes a traditional ftp client, and v2.7 does not.

NCSA Telnet v2.6 (& v2.7) uses and requires the MacTCP or Open Transport software for basic level TCP/IP network support. This is distributed with many of the newer Mac operating systems. Be sure that you have the MacTCP or TCP/IP control panel installed on your Mac if you intend to use NCSA Telnet.

Basic IP configuration

To set up your MacTCP interface for use on the LAN:

Select Control Panels (usually off the Apple menu)
Select MacTCP
Select EtherNet
Select More
Select Manually
Select Class C type of network
Select the Gateway box, & type 198.120.56.1
Select the Net box, & type 13006904 (256*256*198 + 256*120 + 56)
Select the Subnet box, & type 0 (no subnet on the LAN)
Select the Node box, & type the last number in your assigned IP address (e.g. 25 in the example address)
Select the Domain Name Server boxes and add:
- Domain: mf.espo.nasa.gov IP: 198.120.56.42
- Domain: arc.nasa.gov IP: 128.102.154.176
- Domain: arc.nasa.gov IP: 128.102.18.31
Select the Default button for your local Domain Namer Server entry (e.g. mf.espo.nasa.gov in the example address)

NOTE: MacTCP configurations may be saved for each LAN location. MacTCP Switcher freeware and documentation may be downloaded from the web.

To set up your TCP/IP interface for use on the LAN:

Select Control Panels (usually off the Apple menu)
Select TCP/IP
Connect via: Ethernet
Configure: Manually
Select the IP Address box & type your assigned ip address
Select the Subnet Mask box & type 255.255.255.0
Select the Router Address box & type 198.120.56.1
Select the Name Server Address box and add:
- 198.120.56.42
- 128.102.154.176
- 128.102.18.31
Select the Search domains box and add:
- mf.espo.nasa.gov
- arc.nasa.gov

NOTE: TCP/IP configurations may be saved for each LAN location. With the TCP/IP control panel open, select Configurations from the File menu. Beware that any changes are always made to your active configuration.

Configuring options to NCSA Telnet for Macs

Beginning with v2.6 of NCSA Telnet for Macintoshes, there is no editable external config.tel file in which to specify the main options for telling the software how you want to conduct sessions.

Instead, the critical addresses and other TCP/IP network parameters are defined in control panel dialog boxes as described above.

Other options that pertain to the way the higher level NCSA Telnet program itself operates are chosen from selection dialog boxes that are available when the NCSA Telnet program is running on your Mac. These options are then saved in Mac preference files for future sessions. These options can be selected and saved separately for different remote hosts to which you might want to connect.

Since there are a large number of options from which to choose, it is probably best to consult the NCSA Telnet v2.6 documentation, chapter 2, to see the many possibilities and how to select them.

For security, if you are going to allow ftp transfers via your Mac's NCSA Telnet v2.6 ftp server, be sure to select the "FTP server mode on, with username and password required" option under the Edit/Preferences/FTP_server menu, and then assign specific user/password privileges under the Edit/Preferences/FTP_user menu. Otherwise, turn off ftp server capability to protect your Mac's files from unwanted connections from anywhere on the Internet.

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