a_and_aaaa('vcs', main_ipv4, main_ipv6, ttl)
a_and_aaaa('git', main_ipv4, main_ipv6, ttl)
a_and_aaaa('dev', main_ipv4, main_ipv6, ttl)
-a_and_aaaa('mail', main_ipv4, main_ipv6, ttl)
-a_and_aaaa('mail', main_ipv4, main_ipv6, ttl)
-a_and_aaaa('mail', main_ipv4, main_ipv6, ttl)
-a_and_aaaa('mail', main_ipv4, main_ipv6, ttl)
-a_and_aaaa('mail', main_ipv4, main_ipv6, ttl)
+a_and_aaaa('www2', main_ipv4, main_ipv6, ttl)
-- MX records
mx(_a,'tahini.csx.cam.ac.uk', 5, ttl)