Connman(d) DNS and port 53

HarryL · 18 March 2015 12:40

I have been trying to stop connman’s dnsproxy(port 53) with no luck, followed some guides her and was working remote on it, after reload of systemd and restart of connmand even a remote reboot there OSMC/rpi2 box is not responding… so my question is how do i stop connman in using port 53/dns for its DNS proxy…

sam_nazarko · 18 March 2015 14:42

Add -nodnsproxy and then specify desired DNS servers in /etc/resolv.conf

S

HarryL · 18 March 2015 14:51

Hi sam thx but where do i add “-nodnsproxy”?? in the init script?

sam_nazarko · 18 March 2015 15:37

Yes, in /lib/system/systemd/connman.service (exact path may be slightly different)

HarryL · 19 March 2015 05:59

had to edit file /usr/bin/start-network and on almost the last line in the script like this
exec /usr/sbin/connmand -n --config=/etc/connman.conf --nodnsproxy

it did not pikeup the changes i set in /lib/systemd/system/connman.service

ExecStart = /usr/bin/start-network --nodnsproxy 
(or -nodnsproxy)

but working now…

jchuchla · 20 March 2015 21:08

hey harry, I’m fighting a DNS issue myself and I’m wondering if it may relate to yours. what was the reason you wanted to stop the connman dns proxy in the first place?

HarryL · 22 March 2015 08:13

Im using dnsmasq(my own setup dns proxy) and connman occupied port 53…

dentaku65 · 22 March 2015 08:29

I specify directly my DNS inside /etc/resov.conf then

sudo chattr +i /etc/resolv.conf

The file will be not modify in any manner and survive at reboot.
To check:

sudo apt-get install dnsutils
nslookup osmc.tv

HarryL · 22 May 2015 10:24

this is just for refs: There have been some changes in osmc rc3

no need for edit /usr/bin/start-network, there is a new file
“/etc/connman.prefs” here this controls the dnsproxy now.

github.com

osmc/osmc/blob/master/package/network-osmc/files/etc/connman.prefs

# If set to yes, connman enables a dns proxy running on localhost port 53 and sets /etc/resolv.conf nameservers to point at 127.0.0.1
# If set to no, the dns proxy is disabled and connman will update nameservers directly in /etc/resolv.conf.

dnsproxy=no

.

ajourneyisahead · 12 December 2023 21:37

I got bitten by the latest release December 2023 - OSMC's December update is here - OSMC

The file is now here: /etc/osmc/prefs.d/connman and the default is dnsproxy=yes.

sam_nazarko · 13 December 2023 00:11

It has indeed moved. The default changed for a while, but with the path change, it needs to be reconfigured again.