How to Fix “413 Content Too Large” Error in DirectAdmin (ModSecurity)

Introduction On DirectAdmin servers, a 413 Content Too Large error may occur when users attempt to upload files or save large posts/pages in applications like WordPress.This issue is commonly triggered by ModSecurity request body limits, not PHP’s upload/post size or Apache itself. By default, ModSecurity sets a very low SecRequestBodyNoFilesLimit (128 KB), which can block large JSON requests

How to Create Online Meetings from the Calendar in SmarterMail

Introduction SmarterMail’s Calendar is more than just a scheduling tool. In addition to managing appointments, reminders, and recurring events, the Calendar is tightly integrated with SmarterMail’s Online Meetings feature. This integration enables users to schedule meetings directly from their calendars and automatically generate a secure meeting link. When creating an appointment in the Calendar, users

How to Create and Invite Users to SmarterMail Online Meetings

Introduction SmarterMail provides a built-in Online Meetings feature that enables users to host secure video meetings directly from their webmail interface. This functionality streamlines internal and external collaboration by eliminating the need for third-party video conferencing platforms, offering a seamless integration between email, calendar, and virtual meetings. Unlike common misconceptions, administrator or domain administrator privileges

How to Reboot an Instance for Subscription Cloud from the Portal

Introduction Rebooting a cloud instance is a common administrative task that ensures systems operate optimally, apply updates, or recover from unexpected issues. In cloud hosting environments, especially for subscription-based services, rebooting can be necessary during troubleshooting, performance tuning, or after configuration changes. NovaCloud, the underlying platform for subscription-based cloud services offered through the portal, provides

How to disable a service in Windows to free a Port

Introduction Sometimes, critical ports such as 80, 443, or 3306 may be occupied by unnecessary or conflicting services on a Windows system. This can prevent other applications—like Apache, Nginx, MySQL, or Docker—from running properly. To resolve these conflicts, it is often necessary to identify and disable the Windows service that is occupying the port. Disabling