###install openssh
$ sudo pacman -Sy openssh
$ sudo systemctl enable sshd
$ sudo systemctl start sshd
###enable DHCP
add & edit the file /etc/systemd/network/MyDhcp.network with following contents:
[Match]
Name=en*
[Network]
DHCP=ipv4
Then enable and start the systemd.networkd
$ sudo systemctl enable systemd-networkd
$ sudo systemctl start systemd-networkd###install net-tools
the net-tools package includes some network utilities, such as "netstat"
$ sudo pacman -Sy net-tools