I can confirm that this issue still exists in Focal: # apt info winbind Package: winbind Version: 2:4.11.6+dfsg-0ubuntu1.1
$ nmblookup server-without-vbox 192.168.x.y server-without-vbox<00> $ ping -c 1 server-without-vbox PING server-without-vbox(192.168.x.y) 56(84) bytes of data. 64 bytes from 192.168.x.y (192.168.x.y): icmp_seq=1 ttl=64 time=0.612 m $ nmblookup desktop-with-vbox 192.168.x.z desktop-with-vbox<00> 192.168.8.1 desktop-with-vbox<00> $ ping desktop-with-vbox ping: desktop-with-vbox: System error -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802628 Title: winbind name resolution fails when remote host has multiple IPs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1802628/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs