Very simple utility to output uci commands for creating the minimum required AD records in dnsmasq on openwrt.
uciaddns SERVER REALM
./uciaddns 192.168.1.5:53 my.home
uci add dhcp srvhost
uci set dhcp.@srvhost[-1].srv="_ldap._tcp.gc._msdcs.my.home"
uci set dhcp.@srvhost[-1].target="dc0.my.home."
uci set dhcp.@srvhost[-1].port="3268"
uci set dhcp.@srvhost[-1].class="100"
uci set dhcp.@srvhost[-1].weight="0"
uci commit dhcp
uci add dhcp srvhost
uci set dhcp.@srvhost[-1].srv="_ldap._tcp.my.home"
uci set dhcp.@srvhost[-1].target="dc0.my.home."
uci set dhcp.@srvhost[-1].port="389"
uci set dhcp.@srvhost[-1].class="100"
uci set dhcp.@srvhost[-1].weight="0"
uci commit dhcp
uci add dhcp srvhost
uci set dhcp.@srvhost[-1].srv="_ldap._tcp.pdc._msdcs.my.home"
uci set dhcp.@srvhost[-1].target="dc0.my.home."
uci set dhcp.@srvhost[-1].port="389"
uci set dhcp.@srvhost[-1].class="100"
uci set dhcp.@srvhost[-1].weight="0"
uci commit dhcp
uci add dhcp srvhost
uci set dhcp.@srvhost[-1].srv="_ldap._tcp.dc._msdcs.my.home"
uci set dhcp.@srvhost[-1].target="dc0.my.home."
uci set dhcp.@srvhost[-1].port="389"
uci set dhcp.@srvhost[-1].class="100"
uci set dhcp.@srvhost[-1].weight="0"
uci commit dhcp
uci add dhcp srvhost
uci set dhcp.@srvhost[-1].srv="_kerberos._tcp.dc._msdcs.my.home"
uci set dhcp.@srvhost[-1].target="dc0.my.home."
uci set dhcp.@srvhost[-1].port="88"
uci set dhcp.@srvhost[-1].class="100"
uci set dhcp.@srvhost[-1].weight="0"
uci commit dhcp
uci add_list dhcp.@dnsmasq[0].address="/gc._msdcs.my.home/192.168.1.5"
uci commit dhcp
/etc/init.d/dnsmasq restart
This is not everything needed for a complete AD DNS setup through openwrt.
For example, dc0 forward and reverse resolution must be working properly.
If you're using an openwrt variant that uses kresd, configure reverse stub and forwarding.
Here's how I did it for Turris Omnia.
customStubZones = policy.todnames({'1.168.192.in-addr.arpa', '1.168.192.in-addr.arpa.'})
policy.add(policy.suffix(policy.FLAGS({'NO_CACHE'}), customStubZones))
policy.add(policy.suffix(policy.STUB({'127.0.0.1@5353'}), customStubZones))
forwardZones = policy.todnames({'my.home'})
policy.add(policy.suffix(policy.FLAGS({'NO_CACHE'}), forwardZones))
policy.add(policy.suffix(policy.FORWARD({'127.0.0.1@5353'}), forwardZones)
While working on a go program that queried DNS records from a Samba DNS server, I discovered a bug in the golang dns module.
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