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?
