Advanced Font Path Settings

From X Manager, X Manager for Domains, or the X Administrative Console

(Administrative Console only) Click the Domain Definitions tab.
In the left pane, select an existing session definition or click next to Sessions Definitions to create a new one.
In the Session Definition pane on the right, click the Fonts tab.
Click Advanced.

These settings configure options when Permit client to set font path is enabled. The options are:

Treat font server as an invalid font path element	Any attempt to add a font server to the font path will be treated as invalid. Enabling this setting may resolve problems when an unreachable font server causes the client to become unresponsive. When disabled, client can specify one or more font servers in the font path.
Discard invalid font path	Controls whether invalid font paths are discarded (with or without a protocol error) or retained. Some poorly behaved clients rely on invalid font paths being accepted by the X server.
Send error when an invalid font path is seen	If the setting Discard invalid font path is enabled, a protocol error is sent when an invalid font path is seen and discarded. Some clients will not operate correctly or will stop if they receive a protocol error when an invalid font path is set.