Entering Custom Kernel Parameters

Sysctl is an interface used to add custom appliance kernel parameters in real time, while the system is running. You can add and modify these parameters through the System > Sysctl page of the appliance Admin UI.

ATTENTION This interface is provided for advanced use only. Attempting to change these values could result in unpredictable and unsupported system performance. Ivanti recommends modifying these settings only if you are absolutely sure of the results.

Some kernel parameters are controlled by the Virtual Traffic Manager and are generated from other configuration settings that you have applied elsewhere. If you attempt to modify one of these parameters, the Virtual Traffic Manager responds with an error message and your change is not applied.

To add a new custom kernel parameter, enter the parameter name into the Key field and its corresponding value(s) into the Value field. For multiple values, separate each with a single space. Ivanti recommends adding to the optional Description field a description of your parameter for future reference and problem. Click Submit Entry to add your parameter to the appliance.

To modify the value of an existing parameter, enter it again with the new value. All changes are reflected in the Existing Entries table.

ATTENTION All new and modified parameters take effect immediately.

To view the description for an existing parameter, place the mouse pointer over the Info tag to display it. If no description was entered, the Info tag is not present.

To delete custom parameters, check the box next to each one you want to remove and click Delete selected entries. All selected parameters are immediately removed; however, you must reboot your server to complete the process. Any default values that were previously overridden are restored.

The Virtual Traffic Manager checks the validity of the parameters that you enter. Any observable errors are displayed on this page, in the event log, and on the Diagnose page.