BIND DNS

gen2_user · 10-14-2010, 10:37 AM

Hi,
I'm new to using a BIND DNS server. I currently have one set as a master zone on my LAN.

My question is how can I add a record for my local lan that will resolve without typing in the FQDN? For example I want to be able to type "server" instead of "server.domain.com"

Thanks!

alunduil · 10-14-2010, 10:40 AM

Hello,

That's actually controlled by the client rather than the DNS server through the resolver utility. To setup that behavior you'll need to add `search domain.com` to /etc/resolv.conf on the machine you want to do the shortname lookup on.

Regards,

Alunduil

gen2_user · 10-14-2010, 10:53 AM

Thanks for the reply. I was hoping there was something that could be done on the server side. I know it can be done with the MS DNS server, was just hoping there was something similar on Linux.

alunduil · 10-14-2010, 11:01 AM

So the MS DNS server actually modifies my queries as a client when I make them? That doesn't inspire a whole lot of confidence in getting back the result I asked for if that is the case. Are you sure it's not something in the DHCP server that tells the network configurator to add the search line to their resolver?

Regards,

Alunduil

prayag_pjs · 10-14-2010, 12:05 PM

Hi,

Linux uses /etc/resolv.conf and /etc/hosts files for resolving IP and hostnames.

Now we can edit the /etc/resolv.conf file manually to add DNS ip or if system is configured for obtaining IP address dynamically then entry is made in /etc/resolv.conf by DHCP server.

If we define forward and reverse zone in DNS server for IP and Hostname resolution we can add this DNS server in DHCP server configuration file as given in sample configuration given below:

Sample DHCP file:See BOLD line in configuration file given below:

/etc/dhcpd.conf

Quote:

ddns-update-style interim
ignore client-updates

subnet 192.168.1.0 netmask 255.255.255.0 {

# The range of IP addresses the server
# will issue to DHCP enabled PC clients
# booting up on the network

range 192.168.1.201 192.168.1.220;

# Set the amount of time in seconds that
# a client may keep the IP address

default-lease-time 86400;
max-lease-time 86400;

# Set the default gateway to be used by
# the PC clients

option routers 192.168.1.1;
# Don't forward DHCP requests from this
# NIC interface to any other NIC
# interfaces

option ip-forwarding off;

# Set the broadcast address and subnet mask
# to be used by the DHCP clients

option broadcast-address 192.168.1.255;
option subnet-mask 255.255.255.0;

# Set the NTP server to be used by the
# DHCP clients

option ntp-servers 192.168.1.100;

# Set the DNS server to be used by the
# DHCP clients

option domain-name-servers 192.168.1.100;

# If you specify a WINS server for your Windows clients,
# you need to include the following option in the dhcpd.conf file:

option netbios-name-servers 192.168.1.100;

# You can also assign specific IP addresses based on the clients'
# ethernet MAC address as follows (Host's name is "laser-printer":

host laser-printer {
hardware ethernet 08:00:2b:4c:59:23;
fixed-address 192.168.1.222;
}
}
#
# List an unused interface here
#
subnet 192.168.2.0 netmask 255.255.255.0 {
}