OSx and DNS
27 Nov 2012A few ways I found to find out your dns server in OSx
# Open preferences, select Network pane.
# or
nslookup www.kona.com
# or
# list network services, 'Ethernet' may be one
networksetup listallnetworkservices
# Show DNS for specific service. Note: May show 'none' - see next
networksetup -getdnsservers Ethernet
# or
cat /etc/resolv.conf | grep nameserver
and how to change the dns server (to google’s public DNS):
sudo networksetup -setdnsservers Wi-Fi 8.8.8.8 8.8.4.4
See ServerFault and this blog.