Free IP Lookup Tool – See Your IP Address & Details

Top 3 Essential Commands

ipconfig (ifconfig on Mac/Linux) - Displays your current IP address and network details.
ping google.com - Checks if you are connected to the internet and measures speed/latency.
tracert google.com (traceroute on Mac/Linux) - Shows the path packets take to reach a destination.

Essential networking commands for troubleshooting, configuration, and analysis. This reference covers commands for Windows, Linux, and macOS systems.

IP Configuration

ipconfig (Windows) / ifconfig (Linux/macOS)

Display current network configuration

Common Usage:

$ ipconfig /all - Show detailed configuration

$ ifconfig eth0 - Show configuration for specific interface

ip addr (Linux)

Modern alternative to ifconfig

Common Usage:

$ ip addr show - Display all interfaces

$ ip addr add 192.168.1.100/24 dev eth0 - Add IP address

Network Diagnostics

ping

Test connectivity to a host

Common Usage:

$ ping google.com - Standard ping

$ ping -c 5 8.8.8.8 - Ping 5 times (Linux/macOS)

$ ping -t 8.8.8.8 - Continuous ping (Windows)

traceroute (Linux/macOS) / tracert (Windows)

Trace the path packets take to a host

Common Usage:

$ traceroute google.com

$ tracert 8.8.8.8

mtr

Combines ping and traceroute functionality

Common Usage:

$ mtr google.com - Interactive mode

$ mtr -r -c 10 google.com - Report mode

DNS Tools

nslookup

Query DNS servers

Common Usage:

$ nslookup google.com

$ nslookup -type=MX google.com

dig

Advanced DNS lookup tool

Common Usage:

$ dig google.com - Standard lookup

$ dig @8.8.8.8 google.com - Use specific DNS server

$ dig google.com MX - Query MX records

Network Connections

netstat

Display network connections and statistics

Common Usage:

$ netstat -a - Show all connections

$ netstat -tulpn - Show listening ports (Linux)

$ netstat -b - Show binaries (Windows)

ss (Linux)

Modern replacement for netstat

Common Usage:

$ ss -tulwn - Show listening sockets

$ ss -s - Show statistics

lsof (Linux/macOS)

List open files and network connections

Common Usage:

$ lsof -i - Show network connections

$ lsof -i :80 - Show processes using port 80

Packet Analysis

tcpdump

Capture and analyze network traffic

Common Usage:

$ tcpdump -i eth0 - Capture on specific interface

$ tcpdump port 80 - Capture HTTP traffic

$ tcpdump -w capture.pcap - Save to file

Wireshark

GUI-based packet analyzer

Common Usage:

$ wireshark - Launch GUI

$ wireshark -k -i eth0 - Start capture immediately

Network Management

route

View and manipulate routing tables

Common Usage:

$ route print - Show routing table (Windows)

$ route -n - Show routing table (Linux)

$ route add default gw 192.168.1.1 - Add default gateway

arp

View and manipulate ARP cache

Common Usage:

$ arp -a - Show ARP table

$ arp -d 192.168.1.100 - Delete ARP entry

iptables (Linux)

Configure firewall rules

Common Usage:

$ iptables -L - List rules

$ iptables -A INPUT -p tcp --dport 22 -j ACCEPT - Allow SSH

Bandwidth Testing

speedtest-cli

Test internet bandwidth speed

Common Usage:

$ speedtest-cli - Run test

$ speedtest-cli --simple - Simple output

iperf

Network performance measurement tool

Common Usage:

$ iperf -s - Run as server

$ iperf -c server-ip - Run as client

Pro Tips

Use man command (Linux/macOS) or command /? (Windows) to see manual pages
Combine commands with pipes: ipconfig | findstr "IPv4" (Windows) or ifconfig | grep "inet " (Linux/macOS)
Use sudo on Linux/macOS for commands requiring elevated privileges
Capture network traffic with tcpdump and analyze in Wireshark

Last updated: 1/13/2026

IP Configuration

ipconfig (Windows) / ifconfig (Linux/macOS)

Display current network configuration

Common Usage:

$ ipconfig /all - Show detailed configuration

$ ifconfig eth0 - Show configuration for specific interface

ip addr (Linux)

Modern alternative to ifconfig

Common Usage:

$ ip addr show - Display all interfaces

$ ip addr add 192.168.1.100/24 dev eth0 - Add IP address

Network Diagnostics

ping

Test connectivity to a host

Common Usage:

$ ping google.com - Standard ping

$ ping -c 5 8.8.8.8 - Ping 5 times (Linux/macOS)

$ ping -t 8.8.8.8 - Continuous ping (Windows)

traceroute (Linux/macOS) / tracert (Windows)

Trace the path packets take to a host

Common Usage:

$ traceroute google.com

$ tracert 8.8.8.8

mtr

Combines ping and traceroute functionality

Common Usage:

$ mtr google.com - Interactive mode

$ mtr -r -c 10 google.com - Report mode

Network Connections

netstat

Display network connections and statistics

Common Usage:

$ netstat -a - Show all connections

$ netstat -tulpn - Show listening ports (Linux)

$ netstat -b - Show binaries (Windows)

ss (Linux)

Modern replacement for netstat

Common Usage:

$ ss -tulwn - Show listening sockets

$ ss -s - Show statistics

lsof (Linux/macOS)

List open files and network connections

Common Usage:

$ lsof -i - Show network connections

$ lsof -i :80 - Show processes using port 80

Packet Analysis

tcpdump

Capture and analyze network traffic

Common Usage:

$ tcpdump -i eth0 - Capture on specific interface

$ tcpdump port 80 - Capture HTTP traffic

$ tcpdump -w capture.pcap - Save to file

Wireshark

GUI-based packet analyzer

Common Usage:

$ wireshark - Launch GUI

$ wireshark -k -i eth0 - Start capture immediately

Network Management

route

View and manipulate routing tables

Common Usage:

$ route print - Show routing table (Windows)

$ route -n - Show routing table (Linux)

$ route add default gw 192.168.1.1 - Add default gateway

arp

View and manipulate ARP cache

Common Usage:

$ arp -a - Show ARP table

$ arp -d 192.168.1.100 - Delete ARP entry

iptables (Linux)

Configure firewall rules

Common Usage:

$ iptables -L - List rules

$ iptables -A INPUT -p tcp --dport 22 -j ACCEPT - Allow SSH

Networking and IP Commands

IP Configuration

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Network Diagnostics

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DNS Tools

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Network Connections

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Packet Analysis

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Network Management

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Bandwidth Testing

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Pro Tips

Keep Reading & Growing

CIDR Notation

How to Trace an IP

Subnet Masks Guide

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Networking and IP Commands

IP Configuration

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Network Diagnostics

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DNS Tools

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Network Connections

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Packet Analysis

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Network Management

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Bandwidth Testing

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Pro Tips

Keep Reading & Growing

CIDR Notation

How to Trace an IP

Subnet Masks Guide