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Administering Servers with the Web Console

Objectives

After completing this section, students should be able to perform local and remote server administration using the RHEL web console utility.

Introducing the Web Console

There have been some major changes in the way Red Hat Enterprise Linux servers can be configured and accessed remotely. All the GUI-dependent system-config-* tools have been removed. No manual configuration, file editing, or performing multiple commands is required. All these tools or commands have been replaced by the web console (based on the Cockpit project technology). The web console is an interactive server administration interface. The web console interacts directly with the operating system from a real Linux session in a browser and replaces the need for X-forwarding sessions.

Figure 3.1: Web console interface

The Web Console as a Troubleshooting Tool

  • Graphs of system statistics in real-time

  • Inspecting and filtering syslog events

  • Configuring SELinux and reviewing SELinux access control errors

  • Creating diagnostic reports for Red Hat Support

  • Enabling and configuring kernel crash dumps

  • Running commands from a terminal session

The Web Console as a Management Tool

  • Controlling running system services

  • Configuring network interfaces and firewalld

  • Administering user accounts

  • Monitoring and configuring storage devices

  • Managing system subscriptions and software updates

  • Managing containers and virtual machines

If a feature you need is not available (for example, managing iptables), the web console can be extended by creating a new plug-in.

Basic system administration using the web console

Basic system operations

  • Shutting down or restarting the system

  • Accessing hardware information

  • Changing performance profiles

  • Configuring host name

  • Connecting to a realmd domain

Figure 3.2: Changing system profile
Figure 3.3: Accessing system logs
Figure 3.4: Changing network configuration
Figure 3.5: Creating new user accounts
Figure 3.6: Controlling services
Figure 3.7: Creating diagnostic report
Figure 3.8: Registering a system
Figure 3.9: Accessing the terminal
Revision: rh354-8.0-0e36520