Skip to Main Content
Linux System Administration
book

Linux System Administration

by Tom Adelstein, Bill Lubanovic
March 2007
Intermediate to advanced content levelIntermediate to advanced
304 pages
11h 12m
English
O'Reilly Media, Inc.
Content preview from Linux System Administration
DHCP
|
171
In the upcoming section “Assigning IPv6 Addresses with radvd” we’ll discuss how to
use dhcpd to hand out static IP addresses based on the MAC address of a client’s net-
work card. But before we do, let’s look at a simple version of /etc/dhcpd.conf:
ddns-update-style interim;
default-lease-time 600;
max-lease-time 7200;
subnet 192.168.1.0 netmask 255.255.255.0 {
option routers 192.168.1.1;
option subnet-mask 255.255.255.0;
option domain-name-servers server.centralsoft.org,
server2.centralsoft.org;
range 192.168.1.2 192.168.1.254;
}
For simple DHCP servers, maintenance may actually be easier if you
omit comments and keep the configuration file short.
Starting Your DHCP Service
Some DHCP services require a dhcpd.leases file. Use the touch command to create an
empty file in the same directory as the dhcpd.conf file:
# touch /var/lib/dhcp/dhcpd.leases
You’ll want to start your DHCP server now, to check whether the configuration is
correct. You’ll also want to configure the server to start on boot. To accomplish the
first task, enter:
[root@host2 ~]# service dhcpd start
Starting dhcpd: [ OK ]
[root@host2 ~]#
You can also test whether the DHCP process is running with the following com-
mand (if the service is running, a line will be displayed with the process’s statistics):
# ps aux | grep dhcpd
root 9028 0.0 0.0 2552 636 Ss 09:40 0:00 /usr/sbin/dhcpd
Use the chkconfig command to get DHCP to start at ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Mastering Linux System Administration

Mastering Linux System Administration

Christine Bresnahan, Richard Blum
Mastering Linux Administration

Mastering Linux Administration

Alexandru Calcatinge, Julian Balog

Publisher Resources

ISBN: 9780596009526Supplemental ContentCatalog PageErrata