MX Dynamic Charts Forum :: A connection with the server could not be established
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Nick Rosenberg
02-13-2007 15:20:28 GMT +2
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We have recently migrated our application to a new server. I have granted the IUSR account full control over the includes folder and sub-folders. Application Server > ASP.NET is installed in Windows Components. I get the following error when the chart page loads. MX Dynamic Charts Error: An error occured while calling for image component ('http://www.MYWEBSITE.com/includes/MXCharts/MX_GenerateChartImage.aspx') A connection with the server could not be established If I enter the URL . . . http://www.MYWEBSITE.com/includes/MXCharts/MX_GenerateChartImage.aspx . . . . directly into a browser, I get . . . . . Error: This page cannot be called in this way. Reason: Request type is not POST . . . . . which suggests the page is responding correctly. Can anyone help?
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Razvan Racasanu[InterAKT]  02-13-2007 16:23:11 GMT +2
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Hello,
Can you post in a private message FTP connection details and the URL of the page where you have applied MX Charts?
Regards,
Razvan RACASANU
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Nick Rosenberg
02-13-2007 18:19:18 GMT +2
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Razvan. I can't do an FTP connection. We only have secure WebDAV as it is also an ecommerce server. I might be able to get you WebDAV access to the includes folder. In the meantime can you do anything with just the URL? I really appreciate you getting back to me.
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Razvan Racasanu[InterAKT] 02-14-2007 11:49:49 GMT +2
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Hello,
For processing images, we have a ASP.NET file called MX_GenerateChartImage.aspx. To generate images, we use from ASP VBScript the HTTPRequest object to call this page from your server. So the call is made from your server to your server. The error is shown because this call is not allowed to be made either by a server configuration or by a firewall.
Please contact your system administrator telling him this, so that the proper permissions can be set.
Regards,
Razvan RACASANU
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Nick Rosenberg
02-14-2007 15:20:09 GMT +2
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Razvan, thanks for that reply. Thinking about what you say, I've realized that my problem may stem from the Cisco Pix firewall which the server is connected to. I have a simillar problem where my ASP CDOSYS mail does not get delivered to our admin users with mailboxes on the same server. So, I tried pinging my domain from the server itself and it times out with no reply. I can ping it OK from my PC at home. This has to be a firewall problem, maybe an NAT problem. The only problem I have now is that I dont know what rule to add to the firewall.
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Nick Rosenberg
02-15-2007 14:27:29 GMT +2
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Razvan You may be interested in my work-around. I believe that the ASP HTTPRequest object (called by MX Charts) DNS request resulted in a call to the internet (WAN) IP address on the outside of the firewall, when, from the perspective of MX Dynamic Charts, it needed DNS to return the RFC 1918 IP address of the server on the inside of the firewall - 192.168.1.40 To work around this, I listed the domain in the W2003 server's hosts file (which takes precedence) in c:\windows\system32\drivers\etc\hosts as follows: 127.0.0.1 www.MYDOMAIN.com I also had to ensure that the site properties in IIS had the IP address set to (All Unassigned) It now works fine. Your mention of the HTTPRequest object put me on the right path. Thanks
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