NAME

dscacheutil — gather information, statistics and initiate queries to the Directory Service cache.

SYNOPSIS

DESCRIPTION

dscacheutil does various operations against the Directory Service cache including gathering statistics, initiating lookups, inspection, cache flush, etc. This tool replaces most of the functionality of the lookupd tool previously available in the OS.

FLAGS

A list of flags and their descriptions:

-h

Lists the options for calling dscacheutil

-q category

Initiate a query using standard calls. These calls will either return results from the cache or go fetch live data and place them in the cache. By default if no specific query is requested via -a then all results within that category will be returned.

-a key value

Optional flag to -q for a specific key with a value.

-cachedump

Dumps an overview of the cache by default. Additional flags will provide more detailed information.

-buckets

Used in conjunction with -cachedump to also print hash bucket usage of the current cache.

-entries [category]

Used in conjunction with -cachedump to dump detailed information about cache entries. An optional category can be supplied to only see types of interest. Dumping 'host' entries can only be done by administrative users.

-configuration

Prints current configuration information, such as the search policy from Directory Service and cache parameters.

-flushcache

Flushes the entire cache. This should only be used in extreme cases. Validation information is used within the cache along with other techniques to ensure the OS has valid information available to it.

-statistics

Prints statistics from the cache including an overview and detailed call statistics. Some calls are not cached but are derived from other calls internally. Cache hits and cache misses may not always be equal to external calls. For example getaddrinfo is actually a combination of gethostbyname with other calls internally to the cache to maximize cache hit rate.

Available categories and associated keys:

group

name or gid

host

name or ip_address (used for both IPv6 and IPv4)

mount

name

protocol

name or number

rpc

name or number

service

name or port

user

name or uid

EXAMPLES

Lookup a user:

% dscacheutil -q user -a name jdoe

name: jdoe

password: ********

uid: 501

gid: 501

dir: /Users/jdoe

shell: /bin/csh

gecos: John Doe

Lookup all users:

% dscacheutil -q user

Dump cache overview:

% dscacheutil -cachedump

Dump cache details with user entries:

% dscacheutil -cachedump -entries user

SEE ALSO

DirectoryService(8), dsmemberutil(1)