Configuring the Usermin Configuration Module
by Jamie Cameron
Managing Linux® Systems with Webmin™ System Administration and Module Development
- Copyright
- Bruce Perens' Open Source Series
- Introduction to Webmin
- Installing Webmin
- Securing Your Webmin Server
- Users and Groups
- Introduction to UNIX Users and Groups
- The Users and Groups Module
- Creating a New User
- Editing an Existing User
- Deleting a User
- Creating a New Group
- Editing an Existing Group
- Deleting a Group
- Viewing Recent and Current Logins
- Reading Users' Email
- Creating Users from Batch Files
- Configuring the Users and Groups Module
- Before and After Commands
- Module Access Control
- Other Operating Systems
- Summary
- Disk and Network Filesystems
- Introduction to Filesystems
- The Disk and Network Filesystems Module
- Mounting an NFS Network Filesystem
- Mounting an SMBFS Windows Networking Filesystem
- Mounting a Local ext2 or ext3 Hard Disk Filesystem
- Mounting a Local Windows Hard Disk Filesystem
- Adding Virtual Memory
- Automounter Filesystems
- Editing or Removing an Existing Filesystem
- Listing Users of a Filesystem
- Module Access Control
- Configuring the Disk and Network Filesystems Module
- A Comparison of Filesystem Types
- Other Operating Systems
- Summary
- NFS File Sharing
- Disk Quotas
- Introduction to Disk Quotas
- The Disk Quotas Module
- Enabling Quotas for a Filesystem
- Disabling Quotas for a Filesystem
- Setting Quotas for a User or Group
- Copying Quotas to Multiple Users
- Setting Grace Times
- Setting Default Quotas for New Users
- Other Operating Systems
- Configuring the Disk Quotas Module
- Module Access Control
- Summary
- Partitions, RAID, and LVM
- Introduction to Hard Disk Partitions
- The Partitions on Local Disks Module
- Adding and Formatting a New Partition
- Creating a New Filesystem
- Partition Labels
- Deleting or Changing a Partition
- Module Access Control
- Other Operating Systems
- Introduction to RAID
- The Linux RAID Module
- Introduction to LVM
- The Logical Volume Management Module
- Creating a New Volume Group
- Adding and Removing a Physical Volume
- Creating and Deleting a Logical Volume
- Resizing a Logical Volume
- Creating a Snapshot
- Summary
- Bootup and Shutdown
- Introduction to the Linux Boot Process
- The Bootup and Shutdown Module
- Configuring an Action to Start at Bootup
- Starting and Stopping Actions
- Adding a New Action
- Rebooting or Shutting Down Your System
- Configuring the Bootup and Shutdown Module
- Other Operating Systems
- The SysV Init Configuration Module
- Summary
- Scheduled Commands
- Introduction to Cron Jobs
- The Scheduled Cron Jobs Module
- Creating a New Cron Job
- Editing a Cron Job
- Controlling Users' Access to Cron
- Module Access Control Options
- Configuring the Scheduled Cron Jobs Module
- Other Operating Systems
- The Scheduled Commands Module
- Creating a New Scheduled Command
- Summary
- Process Management
- Software Packages
- System Logs
- Filesystem Backups
- Internet Services
- Introduction to Internet Services
- The Internet Services and Protocols Module
- Enabling an Internet Service
- Creating Your Own Internet Service
- Creating and Editing RPC Programs
- Configuring the Internet Services and Protocols Module
- Other Operating Systems
- The Extended Internet Services Module
- Enabling or Editing an Extended Internet Service
- Creating an Extended Internet Service
- Editing Default Options
- Summary
- Network Configuration
- Network Information Service
- PPP Server Configuration
- Firewall Configuration
- Introduction to Firewalling with IPtables
- The Linux Firewall Module
- Allowing and Denying Network Traffic
- Changing a Chain's Default Action
- Editing Firewall Rules
- Creating Your Own Chain
- Setting Up Network Address Translation
- Setting Up a Transparent Proxy
- Setting Up Port Forwarding
- Firewall Rule Conditions
- Configuring the Linux Firewall Module
- Summary
- Setting the Date and Time
- Boot Loader Configuration
- Introduction to Boot Loaders
- The Linux Bootup Configuration Module
- Booting a New Kernel with LILO
- Booting Another Operating System with LILO
- Editing Global LILO Options
- The GRUB Boot Loader Module
- Booting a New Linux Kernel or BSD with GRUB
- Booting Another Operating System with GRUB
- Editing Global GRUB Options
- Installing GRUB
- Configuring the GRUB Boot Loader Module
- Summary
- Printer Administration
- Voicemail Server Configuration
- Remote Shell Login
- Running Custom Commands
- Webmin's File Manager
- The File Manager Module
- Navigating Directories and Viewing Files
- Manipulating Files
- Creating and Editing Files
- Editing File Permissions
- Creating Links and Directories
- Finding Files
- Editing EXT File Attributes
- Editing XFS File Attributes
- Editing File ACLs
- Sharing Directories
- Module Access Control
- Summary
- Perl Modules
- Status Monitoring with Webmin
- Apache Web Server Configuration
- Introduction to Apache
- The Apache Webserver Module
- Starting and Stopping Apache
- Editing Pages on Your Web Server
- Creating a New Virtual Host
- Setting Per-Directory Options
- Creating Aliases and Redirects
- Running CGI Programs
- Setting Up Server-Side Includes
- Configuring Logging
- Setting Up Custom Error Messages
- Adding and Editing MIME Types
- Password Protecting a Directory
- Restricting Access by Client Address
- Encodings, Character Sets, and Languages
- Editing .htaccess Files
- Setting Up User Web Directories
- Configuring Apache as a Proxy Server
- Setting Up SSL
- Viewing and Editing Directives
- Module Access Control
- Configuring the Apache Webserver Module
- Summary
- DNS Server Configuration
- Introduction to the Domain Name System
- The BIND DNS Server Module
- Creating a New Master Zone
- Adding and Editing Records
- Record Types
- Editing a Master Zone
- Creating a New Slave Zone
- Editing a Slave Zone
- Creating and Editing a Forward Zone
- Creating a Root Zone
- Editing Zone Defaults
- Configuring Forwarding and Transfers
- Editing Access Control Lists
- Setting Up Partial Reverse Delegation
- Using BIND Views
- Module Access Control
- Configuring the BIND DNS Server Module
- The BIND 4 DNS Server Module
- Summary
- CVS Server Configuration
- DHCP Server Configuration
- Introduction to the Dynamic Host Configuration Protocol
- The ISC DHCP Server
- The DHCP Server Module
- Adding and Editing Subnets
- Viewing and Deleting Leases
- Editing Global Client Options
- Adding and Editing Fixed Hosts
- Adding and Editing Shared Networks
- Adding and Editing Groups
- Module Access Control
- Configuring the DHCP Server Module
- Summary
- Downloading Email with Fetchmail
- Managing Majordomo Mailing Lists
- Introduction to Mailing Lists and Majordomo
- The Majordomo List Manager Module
- Using Other Mail Servers
- Creating a Mailing List
- Managing List Members
- Editing List Information, Headers, and Footers
- Editing Subscription Options
- Editing Forwarded Email Options
- Editing List Access Control
- Moderating and Maintaining a Mailing List
- Deleting a Mailing List
- Creating a Digest List
- Editing Digest Options
- Editing Global Majordomo Options
- Module Access Control
- Configuring the Majordomo List Manager Module
- Summary
- The MySQL Database
- Introduction to MySQL
- The MySQL Database Server Module
- Creating a New Database
- Creating a New Table
- Adding and Editing Fields
- Field Types
- Viewing and Editing Table Contents
- Deleting Tables and Databases
- Executing SQL Commands
- Backing Up and Restoring a Database
- Managing MySQL Users
- Managing Database, Host, Table, and Field Permissions
- Module Access Control
- Configuring the MySQL Database Server Module
- Summary
- The PostgreSQL Database
- Introduction to PostgreSQL
- The PostgreSQL Database Server Module
- Creating a New Database
- Creating a New Table
- Adding and Editing Fields
- Deleting a Field
- Field Types
- Viewing and Editing Table Contents
- Deleting Tables and Databases
- Executing SQL Commands
- Backing Up and Restoring a Database
- Managing PostgreSQL Users
- Managing PostgreSQL Groups
- Restricting Client Access
- Editing Object Privileges
- Module Access Control
- Configuring the PostgreSQL Database Server Module
- Summary
- Configuring Sendmail
- Introduction to Internet Email
- The Sendmail Configuration Module
- Editing Local Domains and Domain Masquerading
- Managing Email Aliases
- Configuring Relaying
- Managing Virtual Address Mappings
- Configuring Domain Routing
- Editing Global Sendmail Options
- Viewing the Mail Queue
- Reading Users' Email
- Adding Sendmail Features with M4
- Creating Autoreply Aliases
- Creating Filter Aliases
- Sendmail Module Access Control
- Configuring the Sendmail Configuration Module
- Summary
- Configuring Qmail
- Introduction to Qmail
- The Qmail Configuration Module
- Editing Local Domains
- Managing Email Aliases
- Configuring Relaying
- Managing Virtual Mappings
- Configuring Domain Routing
- Editing Global Qmail Options
- Editing Mail User Assignments
- Viewing the Mail Queue
- Reading Users' Email
- Configuring the Qmail Configuration Module
- Summary
- Analyzing Log Files
- The ProFTPD Server
- Introduction to FTP and ProFTPD
- The ProFTPD Server Module
- Running ProFTPD from inetd or xinetd
- Using the ProFTPD Server Module
- Creating Virtual Servers
- Setting Up Anonymous FTP
- Restricting Users to Their Home Directories
- Limiting Who Can Log In
- Setting Directory Listing Options
- Message and Readme Files
- Setting Per-Directory Options
- Restricting Access to FTP Commands
- Configuring Logging
- Limiting Concurrent Logins
- Restricting Clients by IP Address
- Limiting Uploads
- Manually Editing Directives
- Configuring the ProFTPD Server Module
- Summary
- The WU-FTPD Server
- Introduction to WU-FTPD
- The WU-FTPD Server Module
- Limiting Who Can Log In
- Setting Up Anonymous FTP
- Managing User Classes
- Denying Access to Files
- Setting Up Guest Users
- Editing Directory Aliases
- Message and Readme Files
- Configuring Logging
- Limiting Concurrent Logins
- Restricting Clients by IP Address
- Restricting Access to FTP Commands
- Configuring the WU-FTPD Server Module
- Summary
- SSH Server Configuration
- Windows File Sharing with Samba
- Introduction to SMB and Samba
- The Samba Windows File Sharing Module
- Managing Samba Users
- Adding a New File Share
- Adding a New Printer Share
- Viewing and Disconnecting Clients
- Editing Share Security Options
- Editing File Permission Settings
- Editing File Naming Options
- Editing Other File Share Options
- Editing Printer Share Options
- Editing Share Defaults
- Configuring Networking
- Configuring Authentication
- Configuring Printers
- Accessing SWAT from Webmin
- Module Access Control
- Configuring the Samba Windows File Sharing Module
- Summary
- Configuring the Squid Proxy Server
- Introduction to Proxying and Squid
- The Squid Proxy Server Module
- Changing the Proxy Ports and Addresses
- Adding Cache Directories
- Editing Caching and Proxy Options
- Introduction to Access Control Lists
- Creating and Editing ACLs
- Creating and Editing Proxy Restrictions
- Setting Up Proxy Authentication
- Configuring Logging
- Connecting to Other Proxies
- Clearing the Cache
- Setting Up a Transparent Proxy
- Viewing Cache Manager Statistics
- Analyzing the Squid Logs
- Module Access Control
- Configuring the Squid Proxy Server Module
- Summary
- Filtering Email with Procmail
- Creating SSL Tunnels
- Usermin Configuration
- Introduction to Usermin
- The Usermin Configuration Module
- Starting and Stopping Usermin
- Restricting Access to Usermin
- Changing the Port and Address
- Configuring the Usermin User Interface
- Installing Usermin Modules
- Changing the Default Language
- Upgrading Usermin
- Configuring Authentication
- Editing Categories and Moving Modules
- Changing and Installing Themes
- Turning on SSL
- Configuring Usermin Modules
- Restricting Access to Modules
- Limiting Who Can Log In
- About the Usermin Modules
- Configuring the Usermin Configuration Module
- Summary
- Cluster Software Management
- Cluster User Management
- The Cluster Users and Groups Module
- Registering a Server
- Creating a New User
- Editing an Existing User
- Deleting a User
- Creating a New Group
- Editing an Existing Group
- Deleting a Group
- Refreshing User and Group Lists
- Synchronizing Users and Groups
- Listing and Removing a Server
- Configuring the Cluster Users and Groups Module
- Summary
- Cluster Webmin Configuration
- The Cluster Webmin Configuration Module
- Registering a Server
- Creating a New Webmin User
- Editing or Deleting a Webmin User
- Creating a New Webmin Group
- Editing or Deleting a Webmin Group
- Editing the User or Group ACL for a Module
- Installing a Module or Theme
- Viewing and Deleting a Module or Theme
- Refreshing User and Module Lists
- Listing and Removing a Server
- Configuring the Cluster Webmin Configuration Module
- Summary
- Webmin Configuration
- The Webmin Configuration Module
- Restricting Access to Webmin
- Changing the Port and Address
- Setting Up Logging
- Using Proxy Servers
- Configuring the Webmin User Interface
- Installing and Deleting Webmin Modules
- Cloning a Webmin Module
- Changing Your Operating System
- Editing the Program Path and Environment Variables
- Changing Webmin's Language
- Editing Main Menu Settings
- Upgrading Webmin
- Installing Updates to Webmin
- Configuring Authentication
- Editing Categories and Moving Modules
- Changing and Installing Themes
- Referrer Checking
- Allowing Unauthenticated Access to Modules
- Turning on SSL
- Setting Up a Certificate Authority
- Summary
- Webmin Access Control
- Introduction to Webmin Users, Groups, and Permissions
- The Webmin Users Module
- Creating a New Webmin User
- Editing a Webmin User
- Editing Module Access Control
- Creating and Editing Webmin Groups
- Requesting a Client SSL Key
- Viewing and Disconnecting Login Sessions
- Module Access Control
- Configuring the Webmin Users Module
- Summary
- Webmin Servers
- Logging in Webmin
- Webmin Module Development
- Advanced Module Development
- Inside the Scheduled Cron Jobs Module
- Creating Webmin Themes
- Inside the MSC Theme
- The Webmin API
- Index
47.18. Configuring the Usermin Configuration Module
This Webmin module has only a single setting that can be changed by clicking on the Module Config link on its main page. It is shown in Table 47.3.
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