lib/dns: EINVAL on dns lookup (wrong bind ip for some environment)

[lostrepo]

I'm getting EINVAL when trying to resolve dns
By changing bind ip

lo/lib/dns/dns.js

Line 131 in 4356cdb

node.bind('127.0.0.1', () => {

from 127.0.0.1 to external interface ip I'm able to resolve dns without errors

Possible solutions I see:

1. pass bind_ip parameter to lookup method as override
2. on dns module load save LO_DNS_BIND_IP environment variable as default override
3. on dns module load use ioctl to find all interface' ips (something like https://stackoverflow.com/a/4139811, https://stackoverflow.com/a/4267204), try to resolve and bind to all ips, save ip that resolved as default override
4. all/some of the above (priority: 1 > 2 > 3)