hostnamectl

Overview

The hostnamectl command controls the system hostname. It queries and changes system hostname and related settings.

Syntax

hostnamectl [options] [command]

Common Options

Option Description
status Show status
set-hostname Set hostname
set-icon-name Set icon name
set-chassis Set chassis type
set-deployment Set deployment
set-location Set location
--pretty Pretty hostname
--static Static hostname
--transient Transient hostname
--no-ask-password No password

Output Fields

Field Description
Hostname System name
Icon Name System icon
Chassis Hardware type
Machine ID System ID
Boot ID Boot identifier
Virtualization VM technology
Operating System OS details
Kernel Kernel version
Architecture CPU architecture

Key Use Cases

  1. System configuration
  2. Hostname management
  3. System information
  4. Hardware details
  5. OS information

Examples with Explanations

Example 1: Status

hostnamectl status

Show system status

Example 2: Set Name

hostnamectl set-hostname newname

Change hostname

Example 3: Set Pretty

hostnamectl set-hostname "Pretty Name" --pretty

Set pretty hostname

Common Usage Patterns

  1. Check status:

    hostnamectl

  2. Change name:

    hostnamectl set-hostname name

  3. Set chassis:

    hostnamectl set-chassis server

System Information

  1. Host details
  2. System status
  3. Hardware info
  4. OS details
  5. Configuration

Additional Resources

Best Practices

  1. Proper naming
  2. Documentation
  3. Configuration
  4. Security
  5. Verification

Configuration Management

  1. Hostname setup
  2. System identity
  3. Network config
  4. DNS settings
  5. System details

Troubleshooting

  1. Name issues
  2. DNS problems
  3. Configuration errors
  4. System identity
  5. Network settings

Common Uses

  1. System setup
  2. Configuration
  3. Documentation
  4. Network setup
  5. Identity management