From: "Diana Saunders" <toodi4 (at mark) hotmail.com>
> This problem is a little vague, but I'm hoping maybe someone has had the
> same problem and knows what the solution is.
>
> I have a BQ Centos server in which a customer is processing credit card
> payments through Authorize Net's AIM method. Suddenly about a week ago it
> stopped working. There is no error message, the process just hangs for a
> while and then eventually goes to the next page but without any reponse
> from Authorize Net.
>
> It might seem that the problem is with Auth. Net, especially since nothing
> has changed on the server. But we tried running a script from another
> server that also uses auth net (a separate auth net account), It works
> fine on the other server, but didn't work on the problem server. So this
> would seem to indicate that the problem is with the server.
>
> I had a similar problem a few years ago on a Windows server and don't
> recall the resolution. I do recall that Authorize Net wasn't much help
> except to say that the request wasn't reaching their server.
>
> I realize there isn't much to go on, but I'm hoping just from the
> description that someone might have gone through this before and knows
> what to do.
>
Maybe your PHP does not have curl.
Maybe the authorize.net account has their Fraud Settings set to only allow
connections from a specific IP.
----
Ken Marcus
Precision Web Hosting, Inc.
http://www.precisionweb.net