Linux host Guide

Linux host Guide

Complete beginner-friendly guide to host on Linux, covering Arch Linux, CachyOS, and other distributions including DNS lookups, domain information, and network queries.

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Table of Contents

1. host Installation
2. host Basics
3. DNS Lookups
4. Query Types
5. Troubleshooting

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host Installation

Install host

Arch/CachyOS:

# Install bind-tools
sudo pacman -S bind

Debian/Ubuntu:

sudo apt install dnsutils

Fedora:

sudo dnf install bind-utils

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host Basics

Lookup Domain

Basic usage:

# Lookup domain
host example.com

# Shows IP address

Verbose Output

Detailed info:

# Verbose output
host -v example.com

# -v = verbose (detailed information)

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DNS Lookups

Query Type

Specific type:

# Query MX records
host -t MX example.com

# -t = type
host -t AAAA example.com

# Query AAAA records

Reverse Lookup

PTR lookup:

# Reverse DNS lookup
host 8.8.8.8

# Shows hostname

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Query Types

All Records

All information:

# All record types
host -a example.com

# -a = all (all record types)

Custom DNS Server

Use server:

# Use specific DNS server
host example.com 8.8.8.8

# Second argument = DNS server

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Troubleshooting

host Not Found

Check installation:

# Check host
which host

# Install if missing
sudo pacman -S bind

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Summary

This guide covered host usage, DNS lookups, and network queries for Arch Linux, CachyOS, and other distributions.

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Next Steps

• dig Guide - Advanced DNS queries
• nslookup Guide - DNS queries
• DNS Servers - DNS server setup
• host Documentation: man host

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This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.