Related

Display Network Statistics

linux

Show network connections, routing tables, interface statistics, and listening ports.

Test Network Connectivity

linux

Test the reachability of a network host and measure round-trip time for packets sent to it.

Secure Shell Remote Login

linux

Securely connect to remote systems using encrypted communication.

linux/ifconfig

Configure Network Interfaces

Display or configure network interface parameters.

network
configuration
interface
linux

Command

ifconfig

Explanation

`ifconfig` (interface configuration) is part of the net-tools package and allows users to configure network interfaces. It can bring interfaces up or down, assign IP addresses, and view current network settings. Modern systems often use `ip` commands instead of `ifconfig` for advanced functionality.

Common Use Cases

  • •Check network interfaces and IP addresses
  • •Assign temporary IP configurations
  • •Enable or disable interfaces manually

Best Practices

  • ✓Use `ip a` as a modern alternative for listing interfaces
  • ✓Avoid persistent configurations with `ifconfig`; use network manager instead

Common Mistakes to Avoid

  • ⚠Forgetting `sudo` when modifying interfaces
  • ⚠Using `ifconfig` on modern systems without installing net-tools

Troubleshooting

Problem: Command not found

Solution: Install net-tools using `sudo apt install net-tools`.

Problem: Interface not showing

Solution: Use `sudo ifconfig -a` to display all interfaces, including inactive ones.

Examples

List all network interfaces and their details

ifconfig

Enable a network interface

ifconfig eth0 up

Assign IP address to interface

ifconfig eth0 192.168.1.10 netmask 255.255.255.0

More

Secure Copy Files Between Hosts

linux

Securely copy files or directories between local and remote hosts over SSH.

Print Working Directory

linux

Display the full path of the current working directory.

Inspect Network

docker

Display detailed information about one or more networks.