[erlang-questions] how to get the factual ip address?
Sun Oct 26 02:09:15 CEST 2008
On 10/25/08, litao cheng <> wrote:
> hi, everyone.
> I want to get the factual ip address of my host. when I use the
> inet:gethostname earn my host name. and then use the inet:gethostbyname/1 or
> inet:getaddrs/2 to get the ip address. the results is : 127.0.1.1.
> I can use the ifconfig to see the ip address of eth0 is 192.168.1.101, I
> want to get this value. how can I do it?
> btw, If it relate to the inetrc config of kernel app?
> (my computer os is ubuntu 8.04, OTP R12B4)
There's the following undocumented function:
1> inet:ifget("eth0", [addr]).
On Ubuntu "eth0" should work for you, but if you want to know what
interfaces you have:
Also note you can change the IP address tuple to a string like this:
and back again:
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