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Software  >   Storage Management  >   Library  >   User Guide 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 © IBM Corporation 2000. All Rights Reserved