Question

23

Configure NetworkManager's dnsmasq to use /etc/hosts

rated 0 times [ 23] [ 0] / answers: 1 / hits: 54771 / 3 Years ago, thu, may 27, 2021, 9:13:07

I have installed DNSMASQ but it was not starting as 53 port was busy.

I found out that ubuntu already had dnsmasq package and it's working.

Now the problem is...I just want to be able to resolve my hosts in /etc/hosts through it

i.e: nslookup somehostonlan localhost
to be resolved to certain IP taken from /etc/hosts file.

but this is not happening.

Why? BTW, as the caching DNS server it's working fine. I just want it to resolve hosts from /etc/hosts file that's all

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ticrew

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3 Years ago

answered 3 Years ago oraoming · Accepted Answer

To speed up internet, ubuntu 12.04 has added a plugin to NetworkManager to start dnsmasq, a local dns server that caches dns entries. The problem is the plugin has hardcoded the --no-hosts string.

So one solution is to comment out the line that load the plugin in the NetworkManager config file and restart NetworkManager :

sudo mv /etc/NetworkManager/NetworkManager.conf /etc/NetworkManager/NetworkManager.conf.bak

sudo bash -c 'cat /etc/NetworkManager/NetworkManager.conf.bak | sed -e "s/^(dns=dnsmasq)$/#1/" > /etc/NetworkManager/NetworkManager.conf'

sudo restart network-manager

Another solution is to wrap dnsmasq to filter out the undesired arguments:

sudo mv /usr/sbin/dnsmasq /usr/sbin/dnsmasq.bin

sudo bash -c 'cat > /usr/sbin/dnsmasq' << EOF

#!/bin/sh

dnsmasq=/usr/sbin/dnsmasq.bin



exec $dnsmasq `echo $@ | sed -e s/--no-hosts//`

EOF



sudo chmod 755 /usr/sbin/dnsmasq

Please mark the bug as affecting you.

Another solution without patching system files

cat /etc/NetworkManager/dnsmasq.d/hosts.conf 



addn-hosts=/etc/hosts