Specifies name of the file to which debug info should be written.

Sets the desired debug level.

This is the number of threads that are started to wait for requests. At least five threads will always be created.

If this option is set, nscd will run as this user and not as root. If a separate cache for every user is used (−S parameter), this option is ignored.

Enables or disables the specified service cache.

Sets the TTL (time-to-live) for positive entries (successful queries) in the specified cache for service. Value is in seconds. Larger values increase cache hit rates and reduce mean response times, but increase problems with cache coherence.

Sets the TTL (time-to-live) for negative entries (unsuccessful queries) in the specified cache for service. Value is in seconds. Can result in significant performance improvements if there are several files owned by UIDs (user IDs) not in system databases (for example untarring the linux kernel sources as root); should be kept small to reduce cache coherency problems.

This is the internal hash table size, value should remain a prime number for optimum efficiency.

Enables or disables checking the file belonging to the specified service for changes. The files are /etc/passwd, /etc/group, and /etc/hosts.

Specifies the maximum number of threads to be started.

Specifies the user who is allowed to request statistics.

Limit on the number of times a cached entry gets reloaded without being used before it gets removed. The default is 5.

Enabling paranoia mode causes nscd to restart itself periodically.

Sets the restart interval to time seconds if periodic restart is enabled by enabling paranoia mode.

Keep the content of the cache for service over server restarts; useful when paranoia mode is set.

The memory mapping of the nscd databases for service is shared with the clients so that they can directly search in them instead of having to ask the daemon over the socket each time a lookup is performed.