Red Hat ENTERPRISE LINUX WS 2.1 - Guia de Instalação descarregar pdf (Página 36)

36 Installing TOPSPIN

DONE

INDEX

them does not affect the other.

With the information about the NMR A

DMINISTRATION PASSWORD and NMR

UPERUSER TOPSPIN is ready to be configured. The NMR ADMINISTRATION PASS-

WORD will be asked for every time a configuration type command is entered. If this

password is typed in correctly, the command will be executed regardless of which

user is logged in the operating system. As a result all newly created configuration

files will be owned by the user that was logged in at the time the configuration

command was executed. Any other user can modify the configuration during his

DMINISTRATION PASSWORD.

This is possible because all configuration files are read- and writeable for every-

body, but T

OPSPIN will not write them without the correct NMR ADMINISTRATION

PASSWORD!

OPSPIN also offers a so-called Security Mode. With this feature all configuration

files are read- and writeable only for the NMR S

UPERUSER.

4.1.1 How to change the NMR ADMINSTRATION PASSWORD

The installnmr script can be used to change the NMR ADMINISTRATION PASS-

WORD and the NMR SUPERUSER. If it is called with the option ’-secure’, it changes

the permissions in a way, that only the NMR S

UPERUSER can execute the configu-

ration commands and the resulting files are readable and writable only for him, all

other users have read-only permissions.

To change the NMR A

DMINISTRATION PASSWORD, you have to:

1. Login as root

2. Open a Linux shell.

3. Go to the T

OPSPIN installation directory, in a default installation this is

/opt/topspin

4. Enter the command:

prog/bin/installnmr <TOPSPIN_HOME> <NMRSUPERUSER>

If you installed TOPSPIN in the default directory and you want to use the user

’nmrsu’ as NMR S

UPERUSER, you have to type in

prog/bin/installnmr /opt/topspin nmrsu

5. Enter the old password and new password as requested.

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Red Hat ENTERPRISE LINUX WS 2.1 - Guia de Instalação Página 36