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| There is no mature implementation of mDNS for the BSDs. [[Avahi]] ''may'' work; [[OpenMDNS]] was designed for use in [[BSD/OpenBSD|OpenBSD]] and may be more compatible. | There is no mature implementation of mDNS for the BSDs. [[Avahi]] ''may'' work. |
DNS on BSD
Domain Name Resolution (DNS) was invented for BSD, so in many ways DNS for BSD is just textbook DNS.
Contents
Name resolution
Name Service Switch
The Name Service Switch (NSS) configuration file (/etc/nsswitch.conf) defines the order of operations for various services, among them being name resolution.
hosts: files dns
Hosts
The hosts file (/etc/hosts) is a list of addresses and names, especially for local hosts and machines.
127.0.0.1 localhost
Resolver
The resolver configuration file (/etc/resolv.conf) is a list of nameservers to query for name resolution. Changes are immediately effective.
It isn't recommended to manage this file directly. Instead, allow dhclient(8) and resolvconf(8) to overwrite the file and configure the behavior of those programs.
At any time, the resolver file can be re-generated by running resolvconf -u.
Utilities
drill(1), used as drill NAME @SERVER TYPE
Multicast name resolution
Multicast domain name resolution (mDNS) is an expansion of the DNS protocol. An mDNS broadcaster makes use of port 5353 and resolves names in the .local domain.
There is no mature implementation of mDNS for the BSDs. Avahi may work.