How to Install Dnsmasq on OpenBSD

DNsmasq is a lightweight DNS and DHCP server. It can be used to provide DNS caching and forwarding services, as well as DHCP server functionality. In this tutorial, we will show you how to install DNsmasq on OpenBSD.

Prerequisites

Before we begin, make sure you have:

• A running OpenBSD installation.
• Root access to the system.

Step 1: Download Dnsmasq

To download DNsmasq, you can visit the official website: http://www.thekelleys.org.uk/dnsmasq/doc.html.

$ ftp http://www.thekelleys.org.uk/dnsmasq/dnsmasq-2.80.tar.gz

Step 2: Extract the DNsmasq Archive

After downloading the DNsmasq archive, extract it using the following command:

$ tar -zxvf dnsmasq-2.80.tar.gz

Step 3: Install Dnsmasq

Once the archive is extracted, navigate to the newly created directory:

$ cd dnsmasq-2.80

Now run the following commands to configure, compile and install DNsmasq:

$ ./configure
$ make
$ sudo make install

The installation should now be complete.

Step 4: Configure Dnsmasq

To configure DNsmasq, create a new configuration file:

$ sudo vi /usr/local/etc/dnsmasq.conf

In this file, you can specify the DNS and DHCP configuration parameters. For example:

# Listen for queries only on the local interface
interface=lo0

# Forward DNS queries to Google DNS
server=8.8.8.8

# Assign IP addresses to clients on this network
dhcp-range=10.0.0.100,10.0.0.200,12h

Make sure to save the changes made to the configuration file.

Step 5: Start Dnsmasq

To start DNsmasq, run the following command:

$ sudo dnsmasq

If the command runs without any errors, DNsmasq should now be running.

Conclusion

In this tutorial, we have shown you how to install and configure DNsmasq on OpenBSD. DNsmasq is a powerful tool that can be used to provide DNS and DHCP services to your network.