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User Guide

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Table of Contents

About This Guide

  • Audience and Purpose
  • Document Organization
  • How To Use This Document
  • Related Documents
  • Typographical Conventions
  • An Introduction to AFS

  • AFS Concepts
  • Client/Server Computing
  • Distributed File Systems
  • AFS Filespace and Local Filespace
  • Cells and Sites
  • Volumes and Mount Points
  • Volume Quotas
  • Using Files in AFS
  • The Cache Manager
  • Updating Copies of Cached Files
  • Multiple Users Modifying Files
  • AFS Security
  • Passwords and Mutual Authentication
  • Access Control Lists
  • Differences Between UNIX and AFS
  • File Sharing
  • Login and Authentication
  • File and Directory Protection
  • Machine Outages
  • Remote Commands
  • Differences in the Semantics of Standard UNIX Commands
  • Using AFS with NFS
  • Using AFS

  • Logging in and Authenticating with AFS
  • Logging In
  • To Log In Using an AFS-modified Login Utility
  • To Log In Using a Two-Step Login Procedure
  • Authenticating with AFS
  • To Authenticate with AFS
  • To Display Your Tokens
  • Example: Authenticating in the Local Cell
  • Example: Authenticating as a Another User
  • Example: Authenticating in a Foreign Cell
  • Limits on Failed Authentication Attempts
  • To Display Your Failed Authentication Limit and Lockout Time
  • Exiting an AFS Session
  • To Discard Tokens
  • Example: Unauthenticating from a Specific Cell
  • To Log Out
  • Accessing the AFS Filespace
  • AFS Pathnames
  • Example: Displaying the Contents of Another User's Directory
  • Accessing Foreign Cells
  • Changing Your Password
  • To Display Password Expiration Date and Reuse Policy
  • To Change Your AFS Password
  • To Change Your UNIX Password
  • Displaying Information about AFS

  • Displaying Volume Quota
  • To Display Percentage of Quota Used
  • Example: Displaying Percentage of Quota Used
  • To Display Quota and Other Information about a Volume
  • Example: Display Quota and Other Information about a Volume
  • To Display Quota and Other Information about a Volume and Partition
  • Example: Displaying Quota and Other Information about a Volume and Partition
  • Locating Files and Directories
  • To Display a File or Directory's Location
  • Example: Displaying Directory Location
  • Checking the Status of Server Machines
  • To Check File Server Machine Status
  • Example: Checking Server Machine Status
  • Determining Access to Foreign Cells
  • To Display Foreign Cells
  • Displaying Server Preference Ranks
  • To Display Server Preference Ranks
  • Protecting Your Directories and Files

  • Access Control Lists
  • Directory Level Access Control
  • The AFS ACL Permissions
  • The Four Directory Permissions
  • The Three File Permissions
  • The Eight Auxiliary Permissions
  • Shorthand Notation for Sets of Permissions
  • About Normal and Negative Permissions
  • Setting DFS ACLs
  • Using the System Groups on ACLs
  • Enabling Access to Subdirectories
  • Extending Access to Service Processes
  • Extending Access to Users from Foreign Cells
  • Displaying an ACL
  • To display an ACL
  • Example: Displaying the ACL on One Directory
  • Example: Displaying the ACLs on Multiple Directories
  • Changing an ACL
  • To Add, Remove, or Edit Normal ACL Permissions
  • Example: Adding a Single ACL Entry
  • Example: Setting Several ACL Entries on One Directory
  • To Add, Remove, or Edit Negative ACL Permissions
  • Example: Setting an Entry in the Negative Permissions Section
  • Example: Restoring Access by Removing an Entry from the Negative Permissions Section
  • Completely Replacing an ACL
  • To Replace an ACL Completely
  • Example: Replacing an ACL
  • Copying ACLs Between Directories
  • To Copy an ACL Between Directories
  • Example: Copying an ACL from One Directory to Another
  • How AFS Uses the UNIX Mode Bits
  • Example: Disabling Write Access for a File
  • Using Groups

  • About Groups
  • Suggestions for Using Groups Effectively
  • Group Names
  • Group-creation Quota
  • Displaying Group Information
  • To Display Group Membership
  • Example: Displaying the Members of a Group
  • Example: Displaying the Groups to Which a User Belongs
  • To Display the Groups a User or Group Owns
  • Example: Displaying the Groups a Group Owns
  • Example: Displaying the Groups a User Owns
  • To Display A Group Entry
  • Example: Listing Information about a Group
  • Example: Listing Group Information about a User
  • Creating Groups and Adding Members
  • To Create a Group
  • Example: Creating a Group
  • To Add Members to a Group
  • Example: Adding Members to a Group
  • Removing Users from a Group and Deleting a Group
  • To Remove Members from a Group
  • Example: Removing Group Members
  • To Delete a Group
  • Example: Deleting a Group
  • To Remove Obsolete ACL Entries
  • Example: Removing an Obsolete ACL Entry
  • Changing a Group's Owner or Name
  • To Change a Group's Owner
  • Example: Changing a Group's Owner to Another User
  • Example: Changing a Group's Owner to Itself
  • Example: Changing a Group's Owner to a Group
  • To Change a Group's Name
  • Example: Changing a Group's group_name Suffix
  • Example: Changing a Group's owner_name Prefix
  • Protecting Group-Related Information
  • Interpreting the Privacy Flags
  • To Set a Group's Privacy Flags
  • Example: Setting a Group's Privacy Flags
  • Troubleshooting

  • Problem: Cannot Access, Copy, or Save File
  • Problem: Accidentally Removed Your Entry from an ACL
  • Error Message: "afs: Lost contact with fileserver"
  • Error Message: "command: Connection timed out"
  • Error Message: "fs: You don't have the required access rights on 'file'"
  • Error Message: "afs: failed to store file"
  • Appendix A. Using the NFS/AFS Translator

  • Requirements for Using the NFS/AFS Translator
  • Accessing AFS via the Translator
  • To Authenticate on a Supported Operating System
  • To Authenticate on an Unsupported Operating System
  • Troubleshooting the NFS/AFS Translator
  • Your NFS Client Machine is Frozen
  • NFS/AFS Translator Reboots
  • System Error Messages
  • Appendix B. AFS Command Syntax and Online Help

  • AFS Command Syntax
  • Command Syntax Example
  • Rules for Using AFS Commands
  • Spaces and Lines
  • Abbreviations and Aliases for Operation Codes
  • Omitting Argument Switches
  • Shortening Switches and Flags
  • Shortening Directory References
  • Commonly Used fs and pts Commands
  • About the fs Commands
  • About the pts Commands
  • Getting Help in AFS
  • Displaying Command Syntax and Aliases
  • Displaying Operation Code Descriptions
  • Appendix C. Glossary

    Index


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