dspluginhelperd(8) BSD System Manager's Manual dspluginhelperd(8)NAME
dspluginhelperd -- support daemon for legacy DirectoryService plugins
SYNOPSIS
dspluginhelperd [-v]
DESCRIPTION
DirectoryService has been replaced by opendirectoryd(8). dspluginhelperd provides support for 3rd party DirectoryService plugins.
More information can be accessed from the Darwin Open Directory Page: http://developer.apple.com/darwin/projects/opendirectory/
OPTIONS
The options are as follows:
-v Display the release version.
DIAGNOSTICS
See odutil(1) for information on enabling debug logging and various other options introspection of opendirectoryd.
ERRORS
Error codes are available using dserr(1) or from framework headers <DirectoryService/DirServiceTypes.h>. DirectoryService.framework is dep-
recated as of 10.6 and OpenDirectory.framework should be used instead.
OPEN SOURCE
The source code for dspluginhelperd is available as part of Apple's Darwin open source initiative. dspluginhelperd is part of the Directory-
Service project. More information on Darwin may be found on the Web at
http://developer.apple.com/darwin/projects/opendirectory/
DirectoryService API and Plug-in API are documented at
http://developer.apple.com/referencelibrary/Networking/
The headers for the deprecated DirectoryService APIs can also be found in the following location:
/System/Library/Frameworks/DirectoryService.framework/Headers/
FILES
/Library/DirectoryServices/PlugIns location of third party plugins
SEE ALSO opendirectoryd(8), odutil(1), DirectoryServiceAttributes(7), dscl(1), dsmemberutil(1), dscacheutil(1), dseditgroup(8), dsenableroot(8),
dserr(8), pwpolicy(8)MacOSX Jun 23, 2010 MacOSX
Check Out this Related Man Page
mDNSResponder(8) BSD System Manager's Manual mDNSResponder(8)NAME
mDNSResponder -- Multicast and Unicast DNS daemon
SYNOPSIS
mDNSResponder
DESCRIPTION
mDNSResponder (also known as mdnsd on some systems) is a daemon invoked at boot time to implement Multicast DNS and DNS Service Discovery. On
Mac OS X 10.6 (Snow Leopard), mDNSResponder is also the system-wide Unicast DNS Resolver.
mDNSResponder listens on UDP port 5353 for Multicast DNS Query packets. When it receives a query for which it knows an answer, mDNSResponder
issues the appropriate Multicast DNS Reply packet.
mDNSResponder also performs Unicast and Multicast DNS Queries on behalf of client processes, and maintains a cache of the replies.
mDNSResponder has no user-specifiable command-line argument, and users should not run mDNSResponder manually.
LOGGING
There are several methods with which to examine mDNSResponder's internal state for debugging and diagnostic purposes. The syslog(1) logging
levels map as follows:
Error - Error messages
Warning - Client-initiated operations
Notice - Sleep proxy operations
Info - Informational messages
By default, only log level Error is logged.
A SIGUSR1 signal toggles additional logging, with Warning and Notice enabled by default:
% sudo killall -USR1 mDNSResponder
Once this logging is enabled, users can additionally use syslog(1) to change the log filter for the process. For example, to enable log lev-
els Emergency - Debug:
% sudo syslog -c mDNSResponder -d
A SIGUSR2 signal toggles packet logging:
% sudo killall -USR2 mDNSResponder
A SIGINFO signal will dump a snapshot summary of the internal state to /var/log/system.log:
% sudo killall -INFO mDNSResponder
FILES
/usr/sbin/mDNSResponder
INFO
For information on Multicast DNS, see http://www.multicastdns.org/
For information on DNS Service Discovery, see http://www.dns-sd.org/
For information on how to use the Multicast DNS and the DNS Service Discovery APIs on Mac OS X and other platforms, see
http://developer.apple.com/bonjour/
For the source code to mDNSResponder, see http://developer.apple.com/darwin/projects/bonjour/
BUGS
mDNSResponder bugs are tracked in Apple Radar component "mDNSResponder".
HISTORY
The mDNSResponder daemon first appeared in Mac OS X 10.2 (Jaguar).
Also available from the Darwin open source repository (though not officially supported by Apple) are mDNSResponder daemons for other plat-
forms, including Mac OS 9, Microsoft Windows, Linux, FreeBSD, NetBSD, Solaris, and other POSIX systems.
Darwin June 1, 2019 Darwin