Hello,
On Mon, Sep 30, 2013 at 04:42:29AM -0700, Michel Albert wrote:
> Hi,
>
> ``socket.gethostbyname`` sends the DNS resolution query to the DNS server
> specified by the OS. Is there an easy way to send a query to a *different*
> server?
>
> I see that twisted.names allows you to do this, but, having all of twisted as
> dependency to my project when all I need to do is a simple DNS query seems a
> bit extreme. I also found pydns, but that looks fairly outdated and
> unmaintained.
>
> Is there not an actively maintained lightweight solution? If not, I will go
> with twisted.
>
there is a dns modul for Python (I don't know is it part of
standard Python library or not), on most Linux distribution you
can find it, eg. in Debian it's called python-dnspython.
It can handle different nameserver, than OS knows - here is a
sample code:
import dns.resolver
r = dns.resolver.Resolver()
r.namerservers = ['127.0.0.1']
# or any other IP, in my case I'm using PDNS, which have two
# parts: a recursor and a resolver; recursor allows requests only
# on localhost
mxservers = r.query("python.org", 'MX').response
hth,
a.
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