apt update && apt upgrade -y

apt install isc-dhcp-server -y

nano /etc/dhcp/dhcpd.conf

Décommenter :

authoritative;

Ajouter

subnet 172.22.15.0 netmask 255.255.255.0 {
    range 172.22.15.30 172.22.15.100;
    option domain-name-servers 10.0.0.3;
    option domain-name-servers 10.35.0.3;
    #option domain-name "votredomaine.com";
    option routers 172.22.15.254;
    option broadcast-address 172.22.15.255;
    default-lease-time 28800;
    max-lease-time 28800;
}

nano /etc/default/isc-dhcp-server

INTERFACESv4="ens33"
#INTERFACESv6=""

systemctl start isc-dhcp-server

systemctl enable isc-dhcp-server

ou

systemctl disable isc-dhcp-server

systemctl status isc-dhcp-server

export PATH=$PATH:/usr/sbin
/usr/sbin/dhcpd -t
ou
dhcpd -t

Internet Systems Consortium DHCP Server 4.4.1
Copyright 2004-2018 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Config file: /etc/dhcp/dhcpd.conf
Database file: /var/lib/dhcp/dhcpd.leases

journalctl -u isc-dhcp-server.service