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🌐 Checking IP Address

Checking IP Address

Think of your computer like a house on the internet. The IP address is your house's address—it tells the network where to send data. Without it, your computer would be lost in the network world. There are two common ways to check your IP on Linux.

Using ifconfig

ifconfig

This command lists all network interfaces (like Ethernet, Wi-Fi) and their details: IP address, netmask, MAC address, etc.

📌 Example:

enp0s3: flags=4163  mtu 1500
        inet 192.168.1.10  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::a00:27ff:fe4e:66a1  prefixlen 64  scopeid 0x20<link>

In the output:

inet 192.168.1.10 → this is your IPv4 address.
inet6 ... → this is your IPv6 address.

Using ip a

ip a

This is a modern alternative to ifconfig. It gives more structured info about interfaces and addresses.

📌 Example:

2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
group default qlen 1000
        inet 192.168.1.10/24 brd 192.168.1.255 scope global dynamic enp0s3
        inet6 fe80::a00:27ff:fe4e:66a1/64 scope link

In the output:

inet 192.168.1.10/24 → your IPv4 address with subnet.

This command is much cleaner and recommended for modern Linux systems.

Quick Tip

If you only want your IP, you can filter it:

ip -4 a

This shows only IPv4 addresses.

Real-life analogy

If your Wi-Fi router is a city, ifconfig tells you which street (IP) your house is on and which postal code (subnet) it belongs to. ip a is like a GPS that not only shows your address but also the road layout and traffic info (network state). This is the foundation because before you can do anything on a network, you need to know where your "house" is.

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Checking IP Address

🌐 Checking IP Address

Using ifconfig

Using ip a

Quick Tip

Real-life analogy

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