major paypal IPN problem

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Posted by Calibaba, 01-07-2008, 06:44 PM
Paypal started sending me notices that it was unable to connect to my IPN (I'm using modernbill v4) yet I used it without a problem for 3 years. The sent this message in response to my support inquiry: Can someone please help me trace this problem? This is what my server is using: Modernbill v4.4 stable Centos 4.6 CSF Firewall Cpanel 11 Apache 2.2 / PHP 5.2.5
Posted by WO-Jacob, 01-07-2008, 06:49 PM
Search your logs for hits to paypal_return.inc.php (this is the file paypal is trying to reach). Hopefully you will be able to find some errors or something from that. Beyond that, you would want to probably hire someone to go through all the various indicators. My best guess is something in that file doesn't agree with php5.
Posted by Calibaba, 01-07-2008, 06:59 PM
I get a lot of those fputs(): error lines FYI.
Posted by WO-Jacob, 01-07-2008, 07:03 PM
Ok... how about this... How's the http uptime on the box that hosts the site? looks like it's processing fine when hit... perhaps apache is offline when paypal's trying to hit?
Posted by Calibaba, 01-07-2008, 07:05 PM
No downtime in months for sure. Paypal sent daily emails this week claiming it could not reach the IPN location due to 200 errors. I'm baffled
Posted by WO-Jacob, 01-07-2008, 07:08 PM
Perhaps something between paypal and your DC went wonky. The code works, the connection works, the problem is intermitant... sounds like connectivity to me. Next time you get one, try to ping various ips you've seen hit the ipn file. Short of that, maybe you've got some bad voodoo?
Posted by Calibaba, 01-07-2008, 07:21 PM
Weird thing, where are the httpd conf in httpd.conf that used to be there in apache 1? I'm using apache 2.2 now and I cannot find conf lines such as max clients, timeouts, etc
Posted by ModernAdvisors, 01-08-2008, 12:30 PM
ModernBill 4 is not compatible with versions 5.2.1 and above.
Posted by Calibaba, 01-08-2008, 02:23 PM
Where on their site does it state that it is not compatible with 5.2.1 and above?