Access to NCSA Facilities Chapter Overview ================ The procedures for accessing the terminal server and the CONVEX C3880 are each covered in this chapter. Reading and forwarding mail are also included. NCSA computers are connected to a local Internet protocol (IP) network. All connections to these computers are made using TCP/IP. If you have access to a national TCP/IP network such as NSFNET, you can make these connections directly. If you do not have such access, you must access a machine that does and then make the TCP/IP connection. For example, the NCSA terminal servers may be accessed on a dial-up basis to provide TCP/IP connections to the NCSA systems. To use the CONVEX C3880, you need a userid, password, and account. If your site has access to a TCP/IP network, skip to the section ``Accessing the CONVEX C3880'' on page 2 -- 2. If you are using a dial-up connection on the NCSA terminal server, read ``NCSA Dial-Up'' on page 2 -- 1. If you have a problem with your access to NCSA, please call the NCSA Consulting Office (217) 244-1144 between 8:30 a.m. and 5:00 p.m. Central Time on weekdays or NCSA Operations (217) 244-0710 at other times. NCSA Dial-Up ============ Terminal Server Account If you want to access NCSA via a modem, you need an account on the NCSA terminal server. You can request a terminal server account by sending electronic mail to allocations@ncsa.uiuc.edu. Connecting to the Terminal Server Call (217) 244-0662 to connect to the NCSA terminal server. The terminal server modems support 14.4 kbps (V.32bis) operation with v.42bis compression. Most of the common standard slower speeds are also supported. Set your terminal or terminal emulation software for full duplex communication, transmitting 8 data bits, and no parity. Once connected to the terminal server, a message and prompt similar to the following is displayed: Annex Command Line Interpreter * Copyright 1991 Xylogics, Inc. Checking authorization, Please wait... Annex username: Enter your terminal server login, which is normally be the same as your CM-5 login. You are then prompted for your terminal server password: Annex password: Enter your terminal server password. Your terminal server password is logically separate from your C3880 password. The initial terminal server password assigned to you may be the same as your initial C3880 password. However, changing your C3880 password does not change your terminal server password. You can change your terminal server password by connecting to the NCSA Sun space.ncsa.uiuc.edu with login apasswd and password apasswd. You are prompted for your terminal server login, your old terminal server password, and a new password. When your login and password are correct, you get a message and prompt similar to the following: Permission granted N C S A DIALUP TERMINAL SERVER This terminal server is for use by authorized NCSA users only. Type "?" for a list of commands, type "hangup" to terminate this session and hangup. To connect to an NCSA host, type "rlogin" or "telnet" and the name of the NCSA host you wish to connect to. To escape back to the terminal server prompt, type -Ax. For help, send e-mail to consult@ncsa.uiuc.edu or call (217)244-1144 On nights and weekends, call (217)244-0710 ** Dialup users without an account on space may now change their ** ** password with the following command: ** ** rlogin space -l apasswd ** ** (The password for the apasswd account is apasswd.) ** NCSA dialup annex 2: At the prompt, enter a telnet command. Accessing the CONVEX C3880 ========================== Connecting The process of connecting to the C3880 from your workstation, host computer system, or the terminal server is basically the same. Use the telnet command and enter the IP name: c3.ncsa.uiuc.edu. For example: % telnet c3.ncsa.uiuc.edu If you have any trouble connecting to the system and suspect a problem with NCSA's network, please call the NCSA Consulting Office (or NCSA Operations after hours). Sample Logon Session The following describes a sample logon session on to the CONVEX C3880. You begin by using telnet and enter the IP name of the machine. For example: telnet c3.ncsa.uiuc.edu or an equivalent telnet command. You see some explanatory information. Next you are prompted for your login name, password, and account name. telnet c3.ncsa.uiuc.eduTrying...Connected to c3.ncsa.uiuc.eduEscape character is '^]'.CONVEX OS, Release V10.2 (c3.ncsa.uiuc.edu)login: u78910Password: mypasswordSystem message of the day [if any]Last login: Fri April 21 15:15:17 1992 from 141.142.00.00This is NCSA's Convex C3880 (c3.ncsa.uiuc.edu)Scratch dir is /scr-int/u78910.Link /u/u78910/scr to /scr-int/u78910 createdc3 [1]% At this point you are in the operating system environment. The default system prompt is a percent sign (%) if you are using the C shell (csh) and a dollar sign ($) if you are using the Bourne shell (sh). The default shell at NCSA is the C shell. NOTE: You may be prompted to enter account information if you have more than one account and you have not set a default account to charge (using the defacct command). In response to the account: prompt, enter the account to be charged. Changing Your Password The first time you log on to an NCSA system, you should change your system-assigned password. Enter: % passwdChanging password for u78910 on c3.ncsa.uiuc.eduOld password: oldpassNew password: newpassRe-enter new password: newpassRebuilding passwd and pwrestrict databases...% NOTE: old pass and newpass do not appear on your screen. NCSA recommends that passwords be at least six characters in length with a minimum of one non-alpha character. The non-alpha character should not be in the first or last significant character of your password. After the password is changed, the system prompt again appears. NCSA recommends that you change your password periodically and not give it to anyone else to protect the security of your files as well as others on the NCSA systems. Your initial packet of information from NCSA Allocations provides other suggestions for selecting a password. Logging Out To end a session on an NCSA system, enter: % logout if you are using the C shell or $ exit if you are using the Bourne shell. Using Mail ========== Although NCSA mail systems are available to users, you are encouraged to read and send mail from a local host, thereby keeping disk space free for other users. If you have a local host, please forward your mail there. If you do not have a local machine, you can use mail on the CONVEX C3880. The procedures for forwarding and running mail are described below. Forwarding mail You can automatically forward mail sent to you on any NCSA system to an account on another machine by creating or editing the file called .forward (the . prefix is required) in your home directory. For example, to create or edit this file with the vi editor, enter: % vi .forward The .forward file should contain a single line using the following format: user@host.domain where -- for the destination machine -- user is your alias, host is the Internet machine name, and domain is an Internet dot-separated list of subdomains. For example: dave@mars.xnu.uiuc.edu You may also edit your .forward file using the EMACS editor. Running mail If you do not have a local computer system to read mail on, you may send and receive mail on the CONVEX C3880. You will be notified upon log on if you have unread mail by the message: You have new mail. This notification message can be changed by using the mailmsg environmental variable. You can read waiting messages by entering: % mail& This command places you in the mail program. Entering carriage returns at the mail prompt (&) displays your mail messages on your terminal. To exit the mail program, enter quit (or q). .