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Questions[dnsmasq](ubuntu)

Martin Hope
M K
Asked: 2018-05-03 13:48:00 +0800 CST
  • 11

Previously, on Ubuntu 16.04, I felt betrayed when an Ubuntu update installed dnsmasq package, configured it, and gave it precedence over my own super-stable, ultra-fast, and own-configured BIND DNS server. It exactly felt as if Ubuntu hacked my workstation.

Since I happened to be working as a system admin, this was extremely unacceptable. This was a freak-out call. This is when you go to troubleshoot a problem and in one of your steps you use dig or nslookup and you get stunned to see the lo interface replying to you. PANIC

Is there a way to not only fix this issue, but also guarantee that /etc/resolv.conf will be tamper proof?

network-manager dns resolv.conf dnsmasq
Martin Hope
Nick Rice
Asked: 2018-04-30 14:03:20 +0800 CST
  • 26

On Ubuntu 14.04 I'm using dnsmasq to resolve wildcard example.com domains to the local machine (desktop computer at home).

After much reading around I cannot for the life of me sort out the same on a clean install of 18.04.

All I want to achieve at the moment is:

  • for ping example.com to ping 127.0.0.1 and not 93.184.216.34;
  • for ping anysubdomain.example.com to also ping 127.0.0.1;
  • and for ping google.com to ping the real google.com via the router/IP DNS.

Surely this must be simple, even trivial?

But I'm stumped. I can get the example.com's resolving but only at the expense of breaking everything else.

How can I do this?

dns dnsmasq 18.04 20.04
Martin Hope
Ram
Asked: 2012-09-21 23:01:05 +0800 CST
  • 51

I was setting up a server as in the below link https://help.ubuntu.com/community/Dnsmasq

root@user-desktop:/etc/init.d# sudo apt-get install dnsmasq
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  dnsmasq
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/15.4 kB of archives.
After this operation, 120 kB of additional disk space will be used.
Selecting previously unselected package dnsmasq.
(Reading database ... 146283 files and directories currently installed.)
Unpacking dnsmasq (from .../dnsmasq_2.59-4_all.deb) ...
Processing triggers for ureadahead ...
Setting up dnsmasq (2.59-4) ...
 * Starting DNS forwarder and DHCP server dnsmasq                                                                                                                                                            
dnsmasq: failed to create listening socket for port 53: Address already in use [fail]
invoke-rc.d: initscript dnsmasq, action "start" failed.
dnsmasq
Martin Hope
bakytn
Asked: 2012-04-02 04:48:18 +0800 CST
  • 22

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

dnsmasq