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iproute2

https://www.tecmint.com/deprecated-linux-networking-commands-and-their-replacements/를 참고

Why?

What!

Linux Deprecated Commands Linux Replacement Commands
arp ip n (ip neighbor)
ifconfig ip a (ip addr), ip link, ip -s (ip -stats)
iptunnel ip tunnel
iwconfig iw
nameif ip link, ifrename
netstat ss, ip route (for netstat -r), ip -s link (for netstat -i), ip maddr (for netstat -g)
route ip r (ip route)

How?!

Install

$ yum install iproute2 # CentOS
$ apt install iproute2 # Ubuntu

Frequently used commands