DNS (dns v2.4.0) View Source
Link to this section Summary
Link to this section Types
Specs
nameserver() :: {String.t(), port :: 1..65535}
Specs
res_option() :: :inet_res.res_option() | {:alt_nameservers, [nameserver()]} | {:nameservers, [nameserver()]}
Specs
rr_type() :: :a | :aaaa | :caa | :cname | :gid | :hinfo | :ns | :mb | :md | :mg | :mf | :minfo | :mx | :naptr | :null | :ptr | :soa | :spf | :srv | :txt | :uid | :uinfo | :unspec | :uri | :wks
Link to this section Functions
Specs
query(String.t(), rr_type(), [res_option()], timeout()) :: {:ok, DNS.Record.t()} | {:error, :inet_res.res_error()}
Queries the DNS server and returns the result.
Examples
Queries for A records:
iex> DNS.query("tungdao.com")Queries for the MX records:
iex> DNS.query("tungdao.com", :mx)Queries for A records, using OpenDNS:
iex> DNS.query("tungdao.com", :a, nameservers: [{"8.8.4.4", 53}])Queries for A records, using OpenDNS, with TCP:
iex> DNS.query("tungdao.com", :a, nameservers: [{"8.8.4.4", 53}], usevc: true)Specs
resolve(String.t(), rr_type(), [res_option()], timeout()) :: {:ok, list()} | {:error, :inet_res.res_error()}
Resolves the answer for a DNS query.
Examples
iex> DNS.resolve("tungdao.com")
{:ok, [{1, 1, 1, 1}]}
iex> DNS.resolve("tungdao.com", :txt)
{:ok, [['v=spf1 a mx ~all']]}
iex> DNS.resolve("tungdao.com", :a, nameservers: [{"8.8.4.4", 53}])
{:ok, [{1, 1, 1, 1}]}
iex> DNS.resolve("tungdao.com", :a, usevc: true)
{:ok, [{1, 1, 1, 1}]}