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split dns with dnsmasq and networkmanager broken since 1.10.10 -> 1.14.4
From: |
Divan Santana |
Subject: |
split dns with dnsmasq and networkmanager broken since 1.10.10 -> 1.14.4 |
Date: |
Mon, 28 Oct 2019 21:04:34 +0200 |
Hi Guix,
I've configured split DNS with dnsmasq and networkmanager and been using
that for quite a while on guix system.
Since a recent update this split DNS setup has stopped working.
Booting the older guix system confirms all just works. I'm not quite
sure what could be wrong.
Here is the details:
Older system profile with these versions works:
kernel 5.2.17
lr29sc29fi0gpy48b2qzbjs6b744m0d6-dnsmasq-2.80
v481hl6d8syq8x9g3hrhmbbdw5qq612l-network-manager-1.10.10
Newer setup with these versions does not:
Kernel 5.3.7
snzrgg9qb6zf3jbshxb4j97ja90ppkng-dnsmasq-2.80
9ciqpyc6jzn1ia607w8s8ziy42jgasv2-network-manager-1.14.4
I've compared the way the processes are started, all looks the same,
except the versions.
Here is a comparison of dnsmasq procs. Working proc on top, broken on bottom.
/gnu/store/lr29sc29fi0gpy48b2qzbjs6b744m0d6-dnsmasq-2.80/sbin/dnsmasq
--no-resolv --keep-in-foreground --no-hosts --bind-interfaces
--pid-file=/var/run/NetworkManager/dnsmasq.pid --listen-address=127.0.0.1
--cache-size=400 --clear-on-reload --conf-file=/dev/null --proxy-dnssec
--enable-dbus=org.freedesktop.NetworkManager.dnsmasq
--conf-dir=/etc/NetworkManager/dnsmasq.d
/gnu/store/snzrgg9qb6zf3jbshxb4j97ja90ppkng-dnsmasq-2.80/sbin/dnsmasq
--no-resolv --keep-in-foreground --no-hosts --bind-interfaces
--pid-file=/var/run/NetworkManager/dnsmasq.pid --listen-address=127.0.0.1
--cache-size=400 --clear-on-reload --conf-file=/dev/null --proxy-dnssec
--enable-dbus=org.freedesktop.NetworkManager.dnsmasq
--conf-dir=/etc/NetworkManager/dnsmasq.d
Comparison of networkmanager, old and new.
/gnu/store/v481hl6d8syq8x9g3hrhmbbdw5qq612l-network-manager-1.10.10/sbin/NetworkManager
--config=/gnu/store/ib8k67r4lnqw52lwkw4dzds4a2dj4xwi-NetworkManager.conf
--no-daemon
/gnu/store/9ciqpyc6jzn1ia607w8s8ziy42jgasv2-network-manager-1.14.4/sbin/NetworkManager
--config=/gnu/store/ib8k67r4lnqw52lwkw4dzds4a2dj4xwi-NetworkManager.conf
--no-daemon
Only other thing of interest, on the newer/problematic guix system, it
seems that if you start dnsmasq manually (via sudo) on another port it
seems to function fine.
I can't start it easily on port 53 since NM kills it when NM runs.
so running this to start it in parallel to the broken dnsmasq works:
sudo /gnu/store/snzrgg9qb6zf3jbshxb4j97ja90ppkng-dnsmasq-2.80/sbin/dnsmasq -p
54 --no-resolv --keep-in-foreground --no-hosts --bind-interfaces
--pid-file=/var/run/NetworkManager/dnsmasq.pid --listen-address=127.0.0.1
--cache-size=400 --clear-on-reload --conf-file=/dev/null --proxy-dnssec
--enable-dbus=org.freedesktop.NetworkManager.dnsmasq
--conf-dir=/etc/NetworkManager/dnsmasq.d
Testing with dig @127.0.0.1 -p 54 somewhere.example.com shows correct lookup.
But that's not of much help to me since it's on port 54 and not 53.
Any ideas?
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