Linux Terminal Command: host

The host command is an essential tool in Network Utilities. In this tutorial, we will explore what host does, look at everyday examples, and cover advanced options to supercharge your command-line workflow.

Concept & Explanation

The host command is a simple tool for performing DNS lookups, translating names to IP addresses.

Common Options & Syntax

host [options] [arguments]

Here are the most common flags used with host:

• Simple Usage: Basic default commands.
• Detailed View: Shows diagnostic information.
• Advanced Actions: Can chain parameters for scripting.

1. Interactive Example (Simple)

Here is how most people run the command:

# Example
host google.com

What it does: Prints a simple summary of IP mappings for ‘google.com’.

2. Power-User Example (Advanced)

For scripting and advanced diagnostics, use this configuration:

# Advanced
host -t txt google.com

What it does: Queries the TXT records (often used for domain verification) for ‘google.com’.

⚙️ Warning & Common Pitfalls

[!WARNING] Unlike dig, host does not display detailed DNS routing headers or server authority sections.

🔗 Related Commands

Here are some related posts on cli_tty1 you might want to check out:

• dig : DNS lookup utility.