Connman and DNS



I’ve been running Connman instead of NetworkManager for a week since it is supposed to be more lightweight. Lightweight is good.

However, I had really weird problems with DNS, where some hosts wouldn’t resolve.

$ ping
PING ( 56(84) bytes of data.
64 bytes from ( icmp_seq=1 ttl=238 time=44.7 ms
64 bytes from ( icmp_seq=2 ttl=238 time=44.6 ms
64 bytes from ( icmp_seq=3 ttl=238 time=44.8 ms
--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 44.625/44.755/44.890/0.267 ms

$ ping
ping: Temporary failure in name resolution

We use Outlook 365 at work, please don’t judge me.

Switching back to NetworkManager solved the problem immediately, so now I can send all those enterprisey emails again. Good times.