Table of Contents
- 1. Install isc-dhcp-server
- 2. /etc/default/isc-dhcp-server
- 3. /etc/dhcp/dhcpd.conf
- 4. Run isc-dhcp-server
- 5. Execution result
1 Install isc-dhcp-server
Install isc-dhcp-server with apt.
$ sudo apt install -y isc-dhcp-server
2 /etc/default/isc-dhcp-server
Add configuration for DHCPD. INTERFACES is a network interface name which is connected to a network which you try to provided DHCP.
$ INTERFACES=ens3$ sudo sed -e ‘s/^#DHCPD_CONF=/DHCPD_CONF=/g’ -e ‘s/^#DHCPD_PID=/DHCPD_PID=/g’ -e “s/INTERFACES=””/INTERFACES=”${INTERFACES}”/g” -i /etc/default/isc-dhcp-server
3 /etc/dhcp/dhcpd.conf
Define domain name, DHCP server IP address and gateway IP address. Mapping MAC address 52:54:00:5e:7a:a4 to IP address 192.168.11.250.
$ cat /etc/dhcp/dhcpd.confsubnet 192.168.11.0 netmask 255.255.255.0 { option domain-name “hiroom2.com”; option domain-name-servers 192.168.11.2; option routers 192.168.11.1;}host dhcp-client { hardware ethernet 52:54:00:5e:7a:a4; fixed-address 192.168.11.250; option host-name “dhcp-client.hiroom2.com”;}
4 Run isc-dhcp-server
Run isc-dhpc-server with systemd.
$ sudo systemctl enable isc-dhcp-server$ sudo systemctl restart isc-dhcp-server
5 Execution result
Run the following command on client machine.
IP address is provided.
$ ip a s1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWNgroup default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codelstate UP group default qlen 1000 link/ether 52:54:00:5e:7a:a4 brd ff:ff:ff:ff:ff:ff inet 192.168.11.250/24 brd 192.168.11.255 scope global dynamicnoprefixroute ens3 valid_lft 42938sec preferred_lft 42938sec inet6 fe80::3af3:7f8b:9205:2e03/64 scope link noprefixroute valid_lft forever preferred_lft forever
Hostname is provided.
$ hostnamectl Static hostname: localhostTransient hostname: dhcp-client.hiroom2.com Icon name: computer-vm Chassis: vm Machine ID: 4095cb9d62054733b651d895c996ea84 Boot ID: 857d974d1b704422be7dbca83a77d9e1 Virtualization: kvm Operating System: Linux Mint 19 Kernel: Linux 4.15.0-20-generic Architecture: x86-64
DNS server is provided.
$ systemd-resolve –status ens3Link 2 (ens3) Current Scopes: DNS LLMNR setting: yesMulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 192.168.11.2 DNS Domain: hiroom2.com
