Alternatives for the net-tools utilities

Many modern distributions, like for example the upcoming Debian 12 Bookworm, do not install the package net-tools by default. This package contains popular utilities like ifconfig, route, netstat, arp and mii-tool. In this post I give alternatives for these utilities. You can of course just install the net-tools package if you prefer to keep using these commands.

ifconfig

To see the current network configuration:

$ ip addr

To see the currrent configuration for one specific interface, for example enp25s0:

$ ip addr show enp25s0

To add a static IP address to a network interface

$ ip addr add 192.168.10.2/24 dev enp25s0

Replace add by del to remove an IP address.

route

To see the current route table:

$ ip route

To set the default gateway:

$ ip route add default via 192.168.10.1 dev enp25s0

netstat

The ss command lists all open sockets. Some interesting options:

To see all open and listening sockets on the system:

$ ss -a

To see all listening TPC and UDP ports:

$ ss -plut

arp

Display the contents of the ARP table:

$ ip neigh

mii-tool

Show the status of an Ethernet interface:

$ ethtool enp25s0