Advanced Laboratory Workstation Quick Reference Guide

Getting Started on an Advanced Laboratory Workstation (ALW)

1. Logging on and off an ALW
2. Passwords and authentication procedures
3. Requesting disk space
4. Further ALW information and assistance available

Using This Document

bold face text

Variable information and UNIX commands or information you type or action you perform.

Typewriter face text

Any information displayed on screen that you do not enter, such as your system's prompt, or information displayed in response to your entries.

normal face text

Symbols and conventions used by this document to explain the command or response.

• an X-window session or a UNIX shell session,
• provides ALW authentication for access to ALW protected files,
• begins a login shell session with the user's home directory as the current working directory

The UNIX pathname for your home directory has this format:

/afs/alw.nih.gov/nih/ institute/user-name

If your user name and password do not allow a successful login call 496-UNIX for assistance.

Logging Out of an ALW

1. Destroy your tokens
2. Exit from the X-Windows environment only and return to the UNIX shell.
3. Completely leave the UNIX environment.

STEP 1: To exit from the X-windows environment,

1. Click on the terminate button on the X-Window-System`s icon or dialogue box displayed on screen.

   

2. Click on the terminate button displayed on the resulting pop-up confirmation box.

   

STEP 2: To log out from a UNIX shell session

1. Terminate the X-Windows session (step 1 above).
2. Enter the logout command.

prompt after you have verified your new password.

NOTE: Here and throughout the rest of this document you will see the system prompt given as: hostname%

This is used as a convention in this document for illustratation. The actual name you will see displayed will depend on your machine's actual name.

Renewing/Cancelling Andrew File System (AFS) Authentication -- klog/unlog

1. hostname% klog
2. Password: PASSWORD
   (NOTE: This is not visible to you as it is typed.)

To cancel authentication for an ALW account use the unlog command.

1. hostname% unlog

Security under AFS

	PERMISSION        ALLOWS
           read      read and lookup access
           write     read and write access
           all       write and administer access
           none      no access

Set the Access Control List (ACL) on an AFS directory with the fs command.

For example, to allow a colleague to read, but not write, your files follow the sequence outlined below while at the hostname% prompt.

1. hostname% cd your-directory
2. hostname% fs seta . -acl user-name write colleague-name read
3. hostname% fs lista .

   Access list for . is
   Normal rights:
     colleague-name rl
     user-name rlidwk
   

NOTE: all files in a new user's home directory, except those in the private subdirectory, are initially readable by everyone.

For example, to list the manual page for the ls command use the command below.

hostname% man ls

Andrew Tools Documentation

For example, enter the following commands at the hostname% prompt.

        help           to browse all help
	help messages   to browse for help on messages
	help ez        to browse for help on ez

AFS Documentation

Call 496-UNIX for information about availability.

ALW Documentation

ALso, the document you are viewing can most likely be printed directly from your current viewing application. Refer to your application's documentation for output instructions.

ALW User Assistance

hostname% ptr

To discuss immediate and/or complex problems with ALW technical support staff:

Call 496-UNIX for further user assistance.