IPv6 DNS

IIRC I wrote this without a web search, but syntax is a bit annoying, so just in case. Assuming the previously mentioned network fd2d:acfb:74cc/48, the named.conf contains:

zone "zaitcev.lan" in {
  type master;
  notify no;
  file "master/zaitcev.lan";
};
zone "c.c.4.7.b.f.c.a.d.2.d.f.ip6.arpa" in {
  type master;
  notify no;
  file "master/fd2d.acfb.74cc";
};

Then, zaitcev.lan contains:

; Main server MSI Wind PC (2009/01-)
elanor		IN	A	192.168.128.1
		IN	AAAA	fec0:0:0:1:0:0:c0a8:8001
		IN	AAAA	fd2d:acfb:74cc:1::1
		IN      MX      10 elanor
;
lembas		IN	A	192.168.128.11
		IN	AAAA	fd2d:acfb:74cc:1:222:68ff:fb14:e991
*.lembas	IN	CNAME	lembas

And fd2d.acfb.74cc contains:

; #1
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0  PTR elanor-wlan.zaitcev.lan.
1.9.9.e.4.1.b.f.f.f.8.6.2.2.2.0.1.0.0.0  PTR lembas.zaitcev.lan.

Really the break can be done at any boundary. Using /48 seems convenient.

Reversing the address is not hard, but tedious. So run "host fd2d:acfb:74cc:2:21e:65ff:fecf:3c10" (address copy-pasted from ip show addr dev wlan"). It will print "Host 0.1.c.3.f.c.e.f.f.f.5.6.e.1.2.0.2.0.0.0.c.c.4.7.b.f.c.a.d.2.d.f.ip6.arpa not found: 3(NXDOMAIN)". Then copy-paste that.

BTW, one annoying thing is how MAC gets stuck into the address. This allows Facebook to track me across any wireless hotspot, without any browser fingerprinting or cookies.