McDewey

set network name-service hosts negative-time-to-live This command sets the time-to-live (TTL) for negative entries or unsuccessful queries in the specified cache for service. So, using this command improves the performance if there are various files owned by user IDs (UIDs) and are unavailable in system databases. For example, files that are available in the Linux kernel sources as root. To reduce the cache coherency problems, the number of such files should be kept to the minimum. set network name-service hosts negative-time-to-live value Syntax Description Description Parameters Enter the number of seconds. value Command Modes Administrator (admin:) Requirements Command privilege level: 1 Allowed during upgrade: Yes Applies to: Unified Communications Manager, IM and Presence Service on Unified Communications Manager, and Cisco Unity Connection. set network name-service hosts persistent This command retains the content of the cache for service over server restarts. This command is useful when paranoia mode is configured. set network name-service hosts persistent value Syntax Description Description Parameters Enter a value for a service. value Command Modes Administrator (admin:) Requirements Command privilege level: 1 Allowed during upgrade: Yes Applies to: Unified Communications Manager, IM and Presence Service on Unified Communications Manager, and Cisco Unity Connection. Command Line Interface Reference Guide for Cisco Unified Communications Solutions, Release 15 and SUs 102 Set Commands set network name-service hosts negative-time-to-live