
Chapter 4 285
Command Definition F-K
HELLO
home group as your logon group when you log on. But if you want to use some other group
as your logon group, you must specify that group's name in your logon command in this
way:
MPE iX:HELLO USER.TECHPUBS,MYGROUP
If your user name is not related to a home group, you must enter a group name in your
HELLO command, or your logon attempt is rejected.
Once you log on, if the normal (default) file security provisions of MPE/iX are in force, you
have unlimited access to all files in your logon and home groups. Furthermore, you can
read files and execute programs stored in the PUB (public) group of your account and the
PUB (public) group of the SYS (system) account. You cannot, however, access any other files
in any way. Further information about files and file security can be found in the Accessing
Files Programmer's Guide (32650-60010).
Passwords
To enhance the security of an account, and to prevent unauthorized accumulation of
charges against the account, the system manager may assign a password. Similarly, an
account manager may associate passwords with the user names and groups belonging to
his account. If you are using an account, user name, or group (other than your home group)
that has a password, you must furnish that password when you log on. Include the
password after the name of the protected entity, separated from that name by a slash mark
(/). (In MPE/iX, the slash denotes security.)
For instance, if the group XGROUP requires a password, and if you use this group as your
logon group, you could enter the password in this fashion:
MPE iX:HELLO USER.TECHPUBS,XGROUP/XPASS
Note that when you specify your home group as your logon group, you need not enter a
password, even if that group has such a password.
Sometimes, when logging on to the system, it is more convenient to have MPE/iX prompt
you for any required passwords. You do this by omitting the passwords from the logon
command. When you log on, the command is printed in the normal way; MPE/iX prompts
you for the password, then turns echo off so that the password is not printed. If you enter
the password incorrectly, the prompt reappears and you have two more chances to enter
the password correctly. After the third incorrect entry, the message INCORRECT PASSWORD
(CIERR 1441) is displayed. You must then press
Return to receive a new prompt and then
enter the HELLO command to start a new logon process. Echo is turned on after all
passwords are read.
Terminal Types
MPE/iX must be able to determine certain characteristics about your terminal, such as
input and output speed, in order to conduct a session. If you log on using a different type of
terminal than the type the system manager has configured, you must specify your
terminal type when you log on. Refer to appendix C, "Terminal and Printer Types."
MPE iX:HELLO USER.TECHPUBS;TERM=10