I have enabled an external domain trust using conditional forwarders between two domains. All appears to be in order, as I can ping IP addresses, access network shares and RDP to servers when I access a resource using FQDN.
However, I cannot get to a resource if the UNC path only includes the host name.
\\server\share (doesn't work)
What changes do I need to make to DNS servers on both sides to allow access using hostnames rather than FQDN?