Troubleshooting

Different Linux versions often require updates, and some programs only run on newer ones. To check your kernel version, log into your server and use the command line.

ASP allows you to send emails using a functionality called CDOSYS. By creating email content and sending emails using ASP directly, you don’t have to add any extra components to your code. We recommend that you use an SMTP relay that requires authentication. Because of stringent anti-spam filters, sending mail through unauthenticated SMTP servers (including the localhost relay on Cloud Sites) can result in delays or undelivered email. Before you start using CDOSYS to send email, it’s a best practice to test your code.

You can enable custom error messages for your ASP.NET application on Windows IIS by using a web.config file with a customErrors setting configured.

IIS — and also using classic ASP — defaults to providing very little error information. Fortunately, you can add a rule to your domain’s web.config file to display more detailed error messages.

Block incoming spam at the server level using Remote Block Lists (RBLs). Learn how to enable and configure RBL spam filtering in WHM and Plesk.

Is your server offline? Learn how to diagnose network connection problems using ping and traceroute commands to identify blocked IPs and timeouts.

Can’t find your spam folder? Learn how to recover SpamAssassin emails by subscribing to your spam folder in Horde, Roundcube, and SquirrelMail.

The PHP memory_limit sets a cap on memory use per script, preventing server crashes from scripts consuming excessive RAM.

Seeing a privacy error for cPanel, WHM, or Plesk? Your server is likely using a self-signed SSL certificate, which browsers don’t automatically trust.

Cloud Sites Windows clusters use specific data types that may introduce errors for some custom applications. The following is a work around for this known issue.

Find log file locations on WHM/cPanel servers. Covers Apache, Exim, MySQL & more to help you troubleshoot server errors and monitor activity.

To make sure your Cloud Site has the highest performance possible, a single FTP user can’t have more than 10 FTP client connections. When you hit this limit, you will see an error message.