pdns/dnsdistdist/docs/advanced/luaaction.rst

   1 Lua actions in rules
   2 ====================
   3
   4 While we can pass every packet through the :func:`blockFilter` functions, it is also possible to configure :program:`dnsdist` to only hand off some packets for Lua inspection.
   5 If you think Lua is too slow for your query load, or if you are doing heavy processing in Lua, this may make sense.
   6
   7 To select specific packets for Lua attention, use :func:`addLuaAction` or :func:`addLuaReponseAction`.
   8
   9 A sample configuration could look like this::
  10
  11   function luarule(dq)
  12     if(dq.qtype==35) -- NAPTR
  13     then
  14       return DNSAction.Pool, "abuse" -- send to abuse pool
  15     else
  16       return DNSAction.None, ""      -- no action
  17     end
  18   end
  19
  20   addLuaAction(AllRule(), luarule)