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Managing Linux® Systems with Webmin™ System Administration and Module Development

Book Description

I am more than satisfied (actually impressed) with how much system administration is possible from Webmin. Comprehensive and convenient, just about any administration I've done is covered here, along with several areas that I've hesitated to explore.
--Karel Baloun, Sr. Software Engineer, Looksmart, Ltd.

Easy, browser-based Linux/UNIX administration with Webmin--step by step

Webmin gives you an easy, browser-based solution for virtually any day-to-day Linux/UNIX administration task. Now, there's a definitive Webmin guide for every beginning-to-intermediate sysadmin. Written by Webmin's primary developer, Managing Linux Systems with Webmin delivers authoritative, step-by-step coverage of the latest version of Webmin, from basic installation to centrally managing multiple servers. Coverage includes:

  • How Webmin works--and how to install and secure it

  • Using Webmin to configure basic system services, including filesystems, users/groups, and printing

  • Configuring Apache, Sendmail, Squid, Samba, MySQL, PostgreSQL, FTP services, and more

  • Cluster modules: configuring multiple systems from one master server

  • Webmin modules: configuring Webmin itself

  • Full API documentation and instructions for writing your own Webmin modules and themes

Jamie Cameron walks you through more than 50 essential Webmin tasks--offering all the background you need, step-by-step instructions, extensive screen captures, and listings of the underlying configuration files that are being modified. Whether you're new to Linux/UNIX system administration or you simply want an alternative to the command line, Managing Linux Systems with Webmin will be an indispensable resource.

Table of Contents

  1. Copyright
  2. Bruce Perens' Open Source Series
  3. Introduction to Webmin
    1. What is Webmin?
    2. Who Should Use Webmin?
    3. How and Why Was it Developed?
    4. What is this Book About?
    5. Who Should Read this Book?
    6. Conventions Used in this Book
    7. Acknowledgments
  4. Installing Webmin
    1. Downloading Webmin for Your System
    2. Installing the RPM Package
    3. Installing the tar.gz Package
    4. Installing the Solaris Package
    5. The Webmin User Interface
    6. Uninstalling Webmin
    7. Summary
  5. Securing Your Webmin Server
    1. Network Security
    2. SSL Encryption
    3. Requesting a Valid SSL Certificate
    4. Summary
  6. Users and Groups
    1. Introduction to UNIX Users and Groups
    2. The Users and Groups Module
    3. Creating a New User
    4. Editing an Existing User
    5. Deleting a User
    6. Creating a New Group
    7. Editing an Existing Group
    8. Deleting a Group
    9. Viewing Recent and Current Logins
    10. Reading Users' Email
    11. Creating Users from Batch Files
    12. Configuring the Users and Groups Module
    13. Before and After Commands
    14. Module Access Control
    15. Other Operating Systems
    16. Summary
  7. Disk and Network Filesystems
    1. Introduction to Filesystems
    2. The Disk and Network Filesystems Module
    3. Mounting an NFS Network Filesystem
    4. Mounting an SMBFS Windows Networking Filesystem
    5. Mounting a Local ext2 or ext3 Hard Disk Filesystem
    6. Mounting a Local Windows Hard Disk Filesystem
    7. Adding Virtual Memory
    8. Automounter Filesystems
    9. Editing or Removing an Existing Filesystem
    10. Listing Users of a Filesystem
    11. Module Access Control
    12. Configuring the Disk and Network Filesystems Module
    13. A Comparison of Filesystem Types
    14. Other Operating Systems
    15. Summary
  8. NFS File Sharing
    1. Introduction to File Sharing with NFS
    2. The NFS Exports Module
    3. Exporting a Directory
    4. Editing or Deleting an NFS Export
    5. NFS on Solaris
    6. NFS on BSD, MacOS X, and OpenServer
    7. NFS on Irix
    8. Summary
  9. Disk Quotas
    1. Introduction to Disk Quotas
    2. The Disk Quotas Module
    3. Enabling Quotas for a Filesystem
    4. Disabling Quotas for a Filesystem
    5. Setting Quotas for a User or Group
    6. Copying Quotas to Multiple Users
    7. Setting Grace Times
    8. Setting Default Quotas for New Users
    9. Other Operating Systems
    10. Configuring the Disk Quotas Module
    11. Module Access Control
    12. Summary
  10. Partitions, RAID, and LVM
    1. Introduction to Hard Disk Partitions
    2. The Partitions on Local Disks Module
    3. Adding and Formatting a New Partition
    4. Creating a New Filesystem
    5. Partition Labels
    6. Deleting or Changing a Partition
    7. Module Access Control
    8. Other Operating Systems
    9. Introduction to RAID
    10. The Linux RAID Module
    11. Introduction to LVM
    12. The Logical Volume Management Module
    13. Creating a New Volume Group
    14. Adding and Removing a Physical Volume
    15. Creating and Deleting a Logical Volume
    16. Resizing a Logical Volume
    17. Creating a Snapshot
    18. Summary
  11. Bootup and Shutdown
    1. Introduction to the Linux Boot Process
    2. The Bootup and Shutdown Module
    3. Configuring an Action to Start at Bootup
    4. Starting and Stopping Actions
    5. Adding a New Action
    6. Rebooting or Shutting Down Your System
    7. Configuring the Bootup and Shutdown Module
    8. Other Operating Systems
    9. The SysV Init Configuration Module
    10. Summary
  12. Scheduled Commands
    1. Introduction to Cron Jobs
    2. The Scheduled Cron Jobs Module
    3. Creating a New Cron Job
    4. Editing a Cron Job
    5. Controlling Users' Access to Cron
    6. Module Access Control Options
    7. Configuring the Scheduled Cron Jobs Module
    8. Other Operating Systems
    9. The Scheduled Commands Module
    10. Creating a New Scheduled Command
    11. Summary
  13. Process Management
    1. Introduction to Processes
    2. The Running Processes Module
    3. Viewing, Killing, or Reprioritizing a Process
    4. Searching for Processes
    5. Running a Process
    6. Module Access Control Options
    7. Other Operating Systems
    8. Summary
  14. Software Packages
    1. Introduction to Packages
    2. The Software Packages Module
    3. Installing a New Package
    4. Finding and Removing a Package
    5. Updating on Debian Linux
    6. Updating on Red Hat Linux
    7. Other Operating Systems
    8. Summary
  15. System Logs
    1. Introduction to Logging
    2. The System Logs Module
    3. Adding a New Log File
    4. Editing or Deleting a Log File
    5. Module Access Control
    6. Other Operating Systems
    7. Summary
  16. Filesystem Backups
    1. Introduction to Backups with Dump
    2. The Filesystem Backup Module
    3. Adding a New Backup
    4. Making a Backup
    5. Editing or Deleting a Backup
    6. Restoring a Backup
    7. Configuring the Filesystem Backup Module
    8. Other Operating Systems
    9. Summary
  17. Internet Services
    1. Introduction to Internet Services
    2. The Internet Services and Protocols Module
    3. Enabling an Internet Service
    4. Creating Your Own Internet Service
    5. Creating and Editing RPC Programs
    6. Configuring the Internet Services and Protocols Module
    7. Other Operating Systems
    8. The Extended Internet Services Module
    9. Enabling or Editing an Extended Internet Service
    10. Creating an Extended Internet Service
    11. Editing Default Options
    12. Summary
  18. Network Configuration
    1. Introduction to Linux Networking
    2. Viewing and Editing Network Interfaces
    3. Adding a Network Interface
    4. Configuring Routing
    5. Changing the Hostname or DNS Client Settings
    6. Editing Host Addresses
    7. Module Access Control
    8. Other Operating Systems
    9. Summary
  19. Network Information Service
    1. Introduction to NIS
    2. Becoming an NIS Client
    3. Setting Up an NIS Master Server
    4. Editing NIS Tables
    5. Securing Your NIS Server
    6. Setting Up an NIS Slave Server
    7. Configuring the NIS Client and Server Module
    8. NIS on Solaris
    9. Summary
  20. PPP Server Configuration
    1. Introduction to PPP on Linux
    2. Configuring a PPP Server
    3. Managing PPP Accounts
    4. Restricting Access by Caller ID
    5. Module Access Control
    6. Summary
  21. Firewall Configuration
    1. Introduction to Firewalling with IPtables
    2. The Linux Firewall Module
    3. Allowing and Denying Network Traffic
    4. Changing a Chain's Default Action
    5. Editing Firewall Rules
    6. Creating Your Own Chain
    7. Setting Up Network Address Translation
    8. Setting Up a Transparent Proxy
    9. Setting Up Port Forwarding
    10. Firewall Rule Conditions
    11. Configuring the Linux Firewall Module
    12. Summary
  22. Setting the Date and Time
    1. The System Time Module
    2. Changing the System Time
    3. Change the Hardware Time
    4. Synchronizing Times with Another Server
    5. Module Access Control
    6. Other Operating Systems
    7. Summary
  23. Boot Loader Configuration
    1. Introduction to Boot Loaders
    2. The Linux Bootup Configuration Module
    3. Booting a New Kernel with LILO
    4. Booting Another Operating System with LILO
    5. Editing Global LILO Options
    6. The GRUB Boot Loader Module
    7. Booting a New Linux Kernel or BSD with GRUB
    8. Booting Another Operating System with GRUB
    9. Editing Global GRUB Options
    10. Installing GRUB
    11. Configuring the GRUB Boot Loader Module
    12. Summary
  24. Printer Administration
    1. Introduction to Printing on Linux
    2. The Printer Administration Module
    3. Adding a New Printer
    4. Editing an Existing Printer
    5. Managing Print Jobs
    6. Configuring the Printer Administration Module
    7. Module Access Control
    8. Other Operating Systems
    9. Summary
  25. Voicemail Server Configuration
    1. The Voicemail Server Module
    2. Configuring Your System as an Answering Machine
    3. Listening to Recorded Messages
    4. Setting a Greeting Message
    5. Summary
  26. Remote Shell Login
    1. The SSH/Telnet Login Module
    2. Configuring the SSH/Telnet Login Module
    3. The Command Shell Module
    4. The Shell In A Box Module
    5. Summary
  27. Running Custom Commands
    1. The Custom Commands Module
    2. Creating a New Command
    3. Parameter Types
    4. Creating a New File Editor
    5. Module Access Control
    6. Configuring the Custom Commands Module
    7. Summary
  28. Webmin's File Manager
    1. The File Manager Module
    2. Navigating Directories and Viewing Files
    3. Manipulating Files
    4. Creating and Editing Files
    5. Editing File Permissions
    6. Creating Links and Directories
    7. Finding Files
    8. Editing EXT File Attributes
    9. Editing XFS File Attributes
    10. Editing File ACLs
    11. Sharing Directories
    12. Module Access Control
    13. Summary
  29. Perl Modules
    1. Introduction to Perl Modules
    2. Perl Modules in Webmin
    3. Installing a Perl Module
    4. Viewing and Removing a Perl Module
    5. Configuring the Perl Modules Module
    6. Summary
  30. Status Monitoring with Webmin
    1. The System and Server Status Module
    2. Adding a New Monitor
    3. Monitor Types
    4. Setting Up Scheduled Monitoring
    5. Module Access Control
    6. Configuring the System and Server Status Module
    7. Summary
  31. Apache Web Server Configuration
    1. Introduction to Apache
    2. The Apache Webserver Module
    3. Starting and Stopping Apache
    4. Editing Pages on Your Web Server
    5. Creating a New Virtual Host
    6. Setting Per-Directory Options
    7. Creating Aliases and Redirects
    8. Running CGI Programs
    9. Setting Up Server-Side Includes
    10. Configuring Logging
    11. Setting Up Custom Error Messages
    12. Adding and Editing MIME Types
    13. Password Protecting a Directory
    14. Restricting Access by Client Address
    15. Encodings, Character Sets, and Languages
    16. Editing .htaccess Files
    17. Setting Up User Web Directories
    18. Configuring Apache as a Proxy Server
    19. Setting Up SSL
    20. Viewing and Editing Directives
    21. Module Access Control
    22. Configuring the Apache Webserver Module
    23. Summary
  32. DNS Server Configuration
    1. Introduction to the Domain Name System
    2. The BIND DNS Server Module
    3. Creating a New Master Zone
    4. Adding and Editing Records
    5. Record Types
    6. Editing a Master Zone
    7. Creating a New Slave Zone
    8. Editing a Slave Zone
    9. Creating and Editing a Forward Zone
    10. Creating a Root Zone
    11. Editing Zone Defaults
    12. Configuring Forwarding and Transfers
    13. Editing Access Control Lists
    14. Setting Up Partial Reverse Delegation
    15. Using BIND Views
    16. Module Access Control
    17. Configuring the BIND DNS Server Module
    18. The BIND 4 DNS Server Module
    19. Summary
  33. CVS Server Configuration
    1. Introduction to CVS
    2. The CVS Server Module
    3. Setting Up the CVS Server
    4. Using the CVS Server
    5. Adding and Editing Users
    6. Limiting User Access
    7. Configuring the CVS Server
    8. Browsing the Repository
    9. Configuring the CVS Server Module
    10. Summary
  34. DHCP Server Configuration
    1. Introduction to the Dynamic Host Configuration Protocol
    2. The ISC DHCP Server
    3. The DHCP Server Module
    4. Adding and Editing Subnets
    5. Viewing and Deleting Leases
    6. Editing Global Client Options
    7. Adding and Editing Fixed Hosts
    8. Adding and Editing Shared Networks
    9. Adding and Editing Groups
    10. Module Access Control
    11. Configuring the DHCP Server Module
    12. Summary
  35. Downloading Email with Fetchmail
    1. Introduction to Fetchmail
    2. The Fetchmail Mail Retrieval Module
    3. Adding a New Mail Server to Check
    4. Downloading Email
    5. Running the Fetchmail Daemon
    6. Editing Global Settings
    7. Module Access Control
    8. Configuring the Fetchmail Mail Retrieval Module
    9. Summary
  36. Managing Majordomo Mailing Lists
    1. Introduction to Mailing Lists and Majordomo
    2. The Majordomo List Manager Module
    3. Using Other Mail Servers
    4. Creating a Mailing List
    5. Managing List Members
    6. Editing List Information, Headers, and Footers
    7. Editing Subscription Options
    8. Editing Forwarded Email Options
    9. Editing List Access Control
    10. Moderating and Maintaining a Mailing List
    11. Deleting a Mailing List
    12. Creating a Digest List
    13. Editing Digest Options
    14. Editing Global Majordomo Options
    15. Module Access Control
    16. Configuring the Majordomo List Manager Module
    17. Summary
  37. The MySQL Database
    1. Introduction to MySQL
    2. The MySQL Database Server Module
    3. Creating a New Database
    4. Creating a New Table
    5. Adding and Editing Fields
    6. Field Types
    7. Viewing and Editing Table Contents
    8. Deleting Tables and Databases
    9. Executing SQL Commands
    10. Backing Up and Restoring a Database
    11. Managing MySQL Users
    12. Managing Database, Host, Table, and Field Permissions
    13. Module Access Control
    14. Configuring the MySQL Database Server Module
    15. Summary
  38. The PostgreSQL Database
    1. Introduction to PostgreSQL
    2. The PostgreSQL Database Server Module
    3. Creating a New Database
    4. Creating a New Table
    5. Adding and Editing Fields
    6. Deleting a Field
    7. Field Types
    8. Viewing and Editing Table Contents
    9. Deleting Tables and Databases
    10. Executing SQL Commands
    11. Backing Up and Restoring a Database
    12. Managing PostgreSQL Users
    13. Managing PostgreSQL Groups
    14. Restricting Client Access
    15. Editing Object Privileges
    16. Module Access Control
    17. Configuring the PostgreSQL Database Server Module
    18. Summary
  39. Configuring Sendmail
    1. Introduction to Internet Email
    2. The Sendmail Configuration Module
    3. Editing Local Domains and Domain Masquerading
    4. Managing Email Aliases
    5. Configuring Relaying
    6. Managing Virtual Address Mappings
    7. Configuring Domain Routing
    8. Editing Global Sendmail Options
    9. Viewing the Mail Queue
    10. Reading Users' Email
    11. Adding Sendmail Features with M4
    12. Creating Autoreply Aliases
    13. Creating Filter Aliases
    14. Sendmail Module Access Control
    15. Configuring the Sendmail Configuration Module
    16. Summary
  40. Configuring Qmail
    1. Introduction to Qmail
    2. The Qmail Configuration Module
    3. Editing Local Domains
    4. Managing Email Aliases
    5. Configuring Relaying
    6. Managing Virtual Mappings
    7. Configuring Domain Routing
    8. Editing Global Qmail Options
    9. Editing Mail User Assignments
    10. Viewing the Mail Queue
    11. Reading Users' Email
    12. Configuring the Qmail Configuration Module
    13. Summary
  41. Analyzing Log Files
    1. The Webalizer Logfile Analysis Module
    2. Editing Report Options
    3. Generating and Viewing a Report
    4. Reporting on Schedule
    5. Adding Another Log File
    6. Editing Global Options
    7. Module Access Control
    8. Summary
  42. The ProFTPD Server
    1. Introduction to FTP and ProFTPD
    2. The ProFTPD Server Module
    3. Running ProFTPD from inetd or xinetd
    4. Using the ProFTPD Server Module
    5. Creating Virtual Servers
    6. Setting Up Anonymous FTP
    7. Restricting Users to Their Home Directories
    8. Limiting Who Can Log In
    9. Setting Directory Listing Options
    10. Message and Readme Files
    11. Setting Per-Directory Options
    12. Restricting Access to FTP Commands
    13. Configuring Logging
    14. Limiting Concurrent Logins
    15. Restricting Clients by IP Address
    16. Limiting Uploads
    17. Manually Editing Directives
    18. Configuring the ProFTPD Server Module
    19. Summary
  43. The WU-FTPD Server
    1. Introduction to WU-FTPD
    2. The WU-FTPD Server Module
    3. Limiting Who Can Log In
    4. Setting Up Anonymous FTP
    5. Managing User Classes
    6. Denying Access to Files
    7. Setting Up Guest Users
    8. Editing Directory Aliases
    9. Message and Readme Files
    10. Configuring Logging
    11. Limiting Concurrent Logins
    12. Restricting Clients by IP Address
    13. Restricting Access to FTP Commands
    14. Configuring the WU-FTPD Server Module
    15. Summary
  44. SSH Server Configuration
    1. Introduction to SSH
    2. The SSH Server Module
    3. Restricting Access to the SSH Server
    4. Network Configuration
    5. Authentication Configuration
    6. Editing Client Host Options
    7. Setting Up SSH for New Users
    8. Configuring the SSH Server Module
    9. Summary
  45. Windows File Sharing with Samba
    1. Introduction to SMB and Samba
    2. The Samba Windows File Sharing Module
    3. Managing Samba Users
    4. Adding a New File Share
    5. Adding a New Printer Share
    6. Viewing and Disconnecting Clients
    7. Editing Share Security Options
    8. Editing File Permission Settings
    9. Editing File Naming Options
    10. Editing Other File Share Options
    11. Editing Printer Share Options
    12. Editing Share Defaults
    13. Configuring Networking
    14. Configuring Authentication
    15. Configuring Printers
    16. Accessing SWAT from Webmin
    17. Module Access Control
    18. Configuring the Samba Windows File Sharing Module
    19. Summary
  46. Configuring the Squid Proxy Server
    1. Introduction to Proxying and Squid
    2. The Squid Proxy Server Module
    3. Changing the Proxy Ports and Addresses
    4. Adding Cache Directories
    5. Editing Caching and Proxy Options
    6. Introduction to Access Control Lists
    7. Creating and Editing ACLs
    8. Creating and Editing Proxy Restrictions
    9. Setting Up Proxy Authentication
    10. Configuring Logging
    11. Connecting to Other Proxies
    12. Clearing the Cache
    13. Setting Up a Transparent Proxy
    14. Viewing Cache Manager Statistics
    15. Analyzing the Squid Logs
    16. Module Access Control
    17. Configuring the Squid Proxy Server Module
    18. Summary
  47. Filtering Email with Procmail
    1. Introduction to Procmail
    2. The Procmail Mail Filter Module
    3. Setting Up Sendmail
    4. Creating and Editing Actions
    5. Creating and Editing Variable Assignments
    6. Conditional Blocks and Include Files
    7. Filtering Spam with SpamAssassin
    8. Configuring the Procmail Mail Filter Module
    9. Summary
  48. Creating SSL Tunnels
    1. Introduction to SSL and STunnel
    2. The SSL Tunnels Module
    3. Creating and Editing SSL Tunnels
    4. Configuring the SSL Tunnels Module
    5. Summary
  49. Usermin Configuration
    1. Introduction to Usermin
    2. The Usermin Configuration Module
    3. Starting and Stopping Usermin
    4. Restricting Access to Usermin
    5. Changing the Port and Address
    6. Configuring the Usermin User Interface
    7. Installing Usermin Modules
    8. Changing the Default Language
    9. Upgrading Usermin
    10. Configuring Authentication
    11. Editing Categories and Moving Modules
    12. Changing and Installing Themes
    13. Turning on SSL
    14. Configuring Usermin Modules
    15. Restricting Access to Modules
    16. Limiting Who Can Log In
    17. About the Usermin Modules
    18. Configuring the Usermin Configuration Module
    19. Summary
  50. Cluster Software Management
    1. Introduction to Webmin Clustering
    2. The Cluster Software Packages Module
    3. Registering a Server
    4. Installing a Package
    5. Searching for Packages
    6. Deleting a Package
    7. Exploring and Removing a Server
    8. Refreshing the Package List
    9. Configuring the Cluster Software Packages Module
    10. Summary
  51. Cluster User Management
    1. The Cluster Users and Groups Module
    2. Registering a Server
    3. Creating a New User
    4. Editing an Existing User
    5. Deleting a User
    6. Creating a New Group
    7. Editing an Existing Group
    8. Deleting a Group
    9. Refreshing User and Group Lists
    10. Synchronizing Users and Groups
    11. Listing and Removing a Server
    12. Configuring the Cluster Users and Groups Module
    13. Summary
  52. Cluster Webmin Configuration
    1. The Cluster Webmin Configuration Module
    2. Registering a Server
    3. Creating a New Webmin User
    4. Editing or Deleting a Webmin User
    5. Creating a New Webmin Group
    6. Editing or Deleting a Webmin Group
    7. Editing the User or Group ACL for a Module
    8. Installing a Module or Theme
    9. Viewing and Deleting a Module or Theme
    10. Refreshing User and Module Lists
    11. Listing and Removing a Server
    12. Configuring the Cluster Webmin Configuration Module
    13. Summary
  53. Webmin Configuration
    1. The Webmin Configuration Module
    2. Restricting Access to Webmin
    3. Changing the Port and Address
    4. Setting Up Logging
    5. Using Proxy Servers
    6. Configuring the Webmin User Interface
    7. Installing and Deleting Webmin Modules
    8. Cloning a Webmin Module
    9. Changing Your Operating System
    10. Editing the Program Path and Environment Variables
    11. Changing Webmin's Language
    12. Editing Main Menu Settings
    13. Upgrading Webmin
    14. Installing Updates to Webmin
    15. Configuring Authentication
    16. Editing Categories and Moving Modules
    17. Changing and Installing Themes
    18. Referrer Checking
    19. Allowing Unauthenticated Access to Modules
    20. Turning on SSL
    21. Setting Up a Certificate Authority
    22. Summary
  54. Webmin Access Control
    1. Introduction to Webmin Users, Groups, and Permissions
    2. The Webmin Users Module
    3. Creating a New Webmin User
    4. Editing a Webmin User
    5. Editing Module Access Control
    6. Creating and Editing Webmin Groups
    7. Requesting a Client SSL Key
    8. Viewing and Disconnecting Login Sessions
    9. Module Access Control
    10. Configuring the Webmin Users Module
    11. Summary
  55. Webmin Servers
    1. The Webmin Servers Index Module
    2. Adding a Webmin Server
    3. Editing or Deleting a Webmin Server
    4. Using Server Tunnels
    5. Broadcasting and Scanning for Servers
    6. How RPC Works
    7. Module Access Control
    8. Configuring the Webmin Servers Index Module
    9. Summary
  56. Logging in Webmin
    1. Introduction to Logging
    2. The Webmin Actions Log Module
    3. Displaying Logs
    4. Summary
  57. Webmin Module Development
    1. Introduction
    2. Required Files
    3. Module CGI Programs
    4. Module Configuration
    5. Look and Feel
    6. Design Goals
    7. Online Help
    8. Module Packaging
    9. Summary and Learning More
  58. Advanced Module Development
    1. Module Access Control
    2. User Update Notification
    3. Internationalization
    4. File Locking
    5. Action Logging
    6. Pre- and Post-Install Scripts
    7. Functions in Other Modules
    8. Remote Procedure Calls
    9. Creating Usermin Modules
    10. Summary
  59. Inside the Scheduled Cron Jobs Module
    1. Module Design and CGI Programs
    2. The cron-lib.pl Library Script
    3. Module Configuration Settings
    4. The lang Internationalization Directory
    5. The acl_security.pl Access Control Script
    6. The log_parser.pl Log Reporting Script
    7. The useradmin_update.pl User Synchronization Script
    8. Summary
  60. Creating Webmin Themes
    1. Introduction to Themes
    2. Overriding Images and Programs
    3. Theme Functions
    4. Summary
  61. Inside the MSC Theme
    1. Theme Design and Graphics
    2. The index.cgi Program
    3. The theme_header Function
    4. The theme_footer Function
    5. Summary
  62. The Webmin API
    1. API Functions
    2. Summary
  63. Index