Arch Linux Network Utilities - ryzendew/Linux-Tips-and-Tricks GitHub Wiki

Arch Linux Network Utilities Guide

Complete beginner-friendly guide to network utilities on Arch Linux, including network testing, network analysis, and network troubleshooting tools.

Table of Contents

  1. Network Testing
  2. Network Analysis
  3. Network Tools
  4. Troubleshooting

Network Testing

ping

Test connectivity:

# Ping host
ping google.com

# Ping with count
ping -c 4 google.com

# Ping with interval
ping -i 2 google.com

traceroute

Trace route:

# Install traceroute
sudo pacman -S traceroute

# Trace route
traceroute google.com

# Or tracepath
tracepath google.com

Network Analysis

netstat

Network statistics:

# Install netstat
sudo pacman -S net-tools

# List connections
netstat -tuln

# List processes
netstat -tulnp

ss

Socket statistics:

# List connections
ss -tuln

# List processes
ss -tulnp

# Show established
ss -tn

nmap

Network scanner:

# Install nmap
sudo pacman -S nmap

# Scan host
nmap hostname

# Scan network
nmap 192.168.1.0/24

Network Tools

wireshark

Network analyzer:

# Install Wireshark
sudo pacman -S wireshark-cli wireshark-qt

# Launch
sudo wireshark

tcpdump

Packet capture:

# Install tcpdump
sudo pacman -S tcpdump

# Capture packets
sudo tcpdump -i eth0

# Save to file
sudo tcpdump -i eth0 -w capture.pcap

iperf3

Bandwidth testing:

# Install iperf3
sudo pacman -S iperf3

# Server
iperf3 -s

# Client
iperf3 -c server-ip

Troubleshooting

Connection Issues

Diagnose:

# Check interface
ip link show

# Check routing
ip route show

# Check DNS
nslookup google.com

Slow Network

Analyze:

# Check bandwidth
iperf3 -c server

# Check latency
ping -c 10 server

# Check packet loss
ping -c 100 server

Summary

This guide covered network testing, analysis, tools, and troubleshooting.

Next Steps

This guide is based on the ArchWiki. For the most up-to-date information, always refer to the official ArchWiki.